Academic literature on the topic 'Synthetic fibers industry'
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Journal articles on the topic "Synthetic fibers industry"
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Cao, Zhen Yu, Feng Zhao, and Xi Yan Li. "Applications of Dyes in Material Science Research." Materials Science Forum 575-578 (April 2008): 1451–54. http://dx.doi.org/10.4028/www.scientific.net/msf.575-578.1451.
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Dyes are colored organic compounds that are used to pigment fiber or other materials. Dyes are mainly calssified into natural and synthetic dyes in terms of the origin. Natural dyes include animal dyes, plant dyes and mineral dyes with such defects as incomplete chromatogram, inconvenient use and color fading, and thus have been gradually eliminated. In 1856, the 18-year-old young British scientist Perkin successfully invented the world's first synthetic dyes. He built his own factory and industrialized synthetic dye production. Over 100 years since then, dye industry has undergone rapid development, and by 2001 synthetic dyes already have been up to nearly 10,000 varieties. In 2004, the output of total dyes in the world has reached 900,000 tons. Synthetic dyes are used comprehensively, not only to dye synthetic fibers, but also natural fibesr, fur, leather and man-made fibers.
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Zuliahani, A., H. D. Rozman, and Abdul Rahman Rozyanty. "Influence of Montmorillonite Treated with Cetyl Trimethyl Ammonium Bromide Addition in Epoxy-Kenaf Composites." Applied Mechanics and Materials 754-755 (April 2015): 235–39. http://dx.doi.org/10.4028/www.scientific.net/amm.754-755.235.
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The use of natural fiber as reinforcement in polymer composites has gained importance recently due to environmental concern and its abundance availability from agricultural crops and wood industry [1]. Many advantages offered by natural fibers over synthetic fibers include low density, greater deformability, low cost per unit volume, recyclability and biodegradability [2-3]. In addition, the mechanical properties of natural fibers such as flax, hemp, jute, sisal and kenaf are comparable with glass fiber in respect of strength and modulus [4]. Hence, many studies have been carried out to replace the synthetic fiber for composite preparation.
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Oner, Eren, and Seher Kaya. "Investigation of the use of hemp fibers in recycling spinning." Acta Scientiarum. Technology 45 (September 27, 2023): e63566. http://dx.doi.org/10.4025/actascitechnol.v45i1.63566.
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In recycle yarn spinning, the original fibers are added to the blend as a carrier because of the recycled fibers obtained by opening from fabric scraps are very short and coarse. In the textile recycling industry, mostly petroleum-based synthetic fibers are used as carrier fibers. In an environmentally important activity such as recycling spinning, it is necessary to reduce the use of synthetics used as carrier fibers. When considered from this point of view, hemp fibers come to the fore with their important performance and environmental features. Based on this fact, in this study, in addition to the standard production conditions in the recycling yarn production facility, hemp fibers in different proportions were added to the blends to reduce the ratio of polyester as carrier fiber and the effects of this situation on yarn quality were examined. According to the results, it was observed that adding hemp fiber to the recycle yarn blend increased yarn tenacity, yarn unevenness and yarn hairiness while decreased yarn elongation properties.
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Kavitha, V., and Aparna G. "A Review on Banana Fiber and Its Properties." Asian Journal of Pharmaceutical Research and Development 9, no. 3 (June 15, 2021): 118–21. http://dx.doi.org/10.22270/ajprd.v9i3.956.
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There are many types of natural fiber including hemp, flax, jute, wood fiber, rice husks, straw wheat, oats, bagasse, barley, grass reeds, banana fiber, oil palm empty fruit bunch, coir, sisal, cotton, kenaf, ramie, water pennywort, paper-mulberry, kapok, abaca, pineapple leaf fiber. The production of banana in India is 13.5 million tons per annual. Banana forming generates more quantity of biomass which goes as waste. The above ground parts like pseudo-stem and peduncle are the major source of fiber. Banana fiber used as a raw material in industry for production of papers, tea bags, currency and reinforced as a polymer composite. Natural fiber is used as an alternative resource to synthetic fibers as well as reinforcement for polymer composite materials and the manufacturing is inexpensive, renewable and environment friendly. Natural fibers have low cost, low density and low durability as compare to synthetic fibers but with the help of fiber treatments, mechanical properties of natural fibers are improved. In this paper, banana fibers are compared through their applications, use and properties and thus it is concluded that the banana fibers provide better chemical composition and properties.
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Nurhaliza, Ulfa Hanifah, Gema Centra Adin, Satrio Dwi Anggoro, and Muchammad Oktaviandri. "Design and Analysis Rolling Press Mechanism for producing Banana Stem as Natural Fiber." Journal of Sustainable Mechanical Engineering 1, no. 1 (July 25, 2023): 7–11. http://dx.doi.org/10.54378/josme.v1i1.5604.
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Materials for structural engineering are divided into four types, including ceramics, polymers, and composites. Composite material is a combination of reinforcement and matrix. Composite technology has progressed so rapidly. The development was mainly triggered by the demand for high quality materials. In its development, the fiber used is not only synthetic fiber (glass fiber) but also natural fiber (natural fiber). The advantage of natural fibers compared to synthetic fibers is that natural fibers are more environmentally friendly because natural fibers are able to decompose naturally, while synthetic fibers are more difficult to decompose. In this paper, banana midrib fiber is used and taken from the kepok banana tree (Musa paradisiaca) is a fiber that has good mechanical properties. Banana midrib fiber has a density of 1.35 g/cm3, the cellulose content is 63-64%, hemicellulose 20%, lignin content is 5%, the average tensile strength is 600 MPa, the tensile modulus is 17.85 GPa and the fracture strain is 3, 36%. Because of the advantages of the banana midrib fiber, hence this paper is made for support the production of the banana midrib fiber by designing and analyzing concept design of the machine for processing natural fibers, especially when the material is banana stems, it is called ZEUS MACHINE: Banana Stem Rolling Press Machine as Natural Fiber by Using Manual Power from Pedaling. This machine can help increase the productivity of natural fiber manufacture and can support the development of technology engaged in industry.
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Moreira, T. M., and Emília Satoshi Miyamaru Seo. "Corn Leaf Fibers Preparation and Characterization for Composite Obtention." Materials Science Forum 881 (November 2016): 271–76. http://dx.doi.org/10.4028/www.scientific.net/msf.881.271.
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There is a global trend in seeking plant fibers to replace the synthetic fibers to obtain reinforced composites, aiming the use of renewable resources. In this context, this paper objective is to develop the process of corn leaf fibers preparations , characterize and adapt them for applications in the construction industry. Corn leaves were dried in room temperature, treated by mercerising (chemical process of attack on the fiber surface making it rough); then neutralized with acid solution and washed in running water. The characterization of the corn leaf fibers was performed by X-ray diffraction, X-ray fluorescence Spectrometry, Scanning Electron Microscopy, Thermogravimetry, specific mass and Fourier Transform Infrared Spectrometry. The mercerizing treatment was effective, because the corn fibers have similar characteristics to synthetic fibers, leading to a possibility of new technological uses, besides the application in gas pipe manufacturing
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El Hawary, Omar, Luca Boccarusso, Martin P. Ansell, Massimo Durante, and Fulvio Pinto. "An Overview of Natural Fiber Composites for Marine Applications." Journal of Marine Science and Engineering 11, no. 5 (May 19, 2023): 1076. http://dx.doi.org/10.3390/jmse11051076.
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Environmental emergency awareness has been gaining momentum in recent years in the composite manufacturing industry, with a new generation of composite materials minimizing their harmful environmental impacts by employing more sustainable manufacturing processes and, where possible, replacing synthetic materials with more sustainable bio-based materials, thus more efficiently using energy and material resources. In this context, natural fiber composites are proposed as appealing candidates to replace or reduce the use of synthetic fibers for reinforcing polymers in several industrial fields, such as the marine sector, where composite usage has been extensively studied in recent years. This review aims to present a thorough overview of the usage of natural fiber composites for marine applications, discussing the most relevant criteria required for applications where water exposure is expected. For this purpose, the review outlines the natural fibers and matrices used, analyzes the resultant composites’ mechanical properties, and presents the fiber treatments required before manufacturing, as well as the main manufacturing processes adopted for natural fiber composite production. The advantages and disadvantages of natural fibers compared to synthetic fibers are also presented, including economic and environmental credentials. Finally, a list of marine components with natural fiber reinforcements developed in recent years is reported.
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Racho, Patcharin, Pinitta Phalathip, and Warutai Dejtanon. "Modified Synthetic Fibers a Treatment for Heavy Metal Removal in Aqueous." Materials Science Forum 890 (March 2017): 133–36. http://dx.doi.org/10.4028/www.scientific.net/msf.890.133.
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In this study was evaluated a performance of chemically modified synthesis fiber for the heavy metal treatment. Four fibers sampled from textile industry were evaluated in this study including of polyester, nylon, rayon and polyester/cotton. The graft copolymerization is the first step of modification process using acrylic acid with and without a surfactant. Then, amino chelating group was prepared via soaked in ethylenediamine solution. The grafting percentage was found in about 30-54% and 12-138% respectively without and with a surfactant conditions, respectively.Since, 3 M of acrylic acid 0.1 g of BPO neither, a polyester/cotton fibers nor 4 M acrylic acid. Overall results showed that the amino chelating fibers had higher lead and hexavalent chromium removal efficiencies than non modified fibers. These indicated the chemically modified fibers that functionalized with acrylic acid and ethylenediamine had capable to improve to an adsorption capacity. The modified nylon fibers had the highest adsorption capacity within 48 mg/g for Pb2+ and Cr6+.
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Berkane, Hachemi Adda, Noureddine Della, Sidali Denine, and Mahdi Missoum Benziane. "Incorporating vegetal fibers for sustainable sandy soil." Revista de la construcción 22, no. 1 (2023): 135–46. http://dx.doi.org/10.7764/rdlc.22.1.135.
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Incorporating fibers into the soil is a reinforcement remediation technique to improve its physical and mechanical properties. Depending on the type of fibers, synthetic fibers, have negative impacts on the environment linked to the waste of their chemical industry. Currently, vegetal fibers consider an economic and ecological alternative to soil reinforcement. Therefore, this study aims to evaluate the influence of two types of randomly distributed fibers (Alfa and Sisal fibers) on the mechanical properties of sandy soil. Direct shear tests were performed on Chlef sand at relative density (Dr = 75% and 40%) and of fiber contents varying from 1, 2, 3 and 4% for sand samples reinforced with Alfa fibers and 0.1, 0.3, 0.5 and 0.7% for sand samples reinforced with Sisal fibers. The test results show that the inclusion of vegetal fibers in sandy soil improves the peak and residual shear strength. In addition, soil resistance was found to attain a maximum with the optimums of 0.7% for sisal fiber content and 3% for Alfa fibers.
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Tholibon, Dulina, Izdihar Tharazi, Abu Bakar Sulong, Norhamidi Muhamad, Nur Farhani Ismail, Mohd Khairul Fadzly Md Radzi, Nabilah Afiqah Mohd Radzuan, and David Hui. "Kenaf Fiber Composites: A Review on Synthetic and Biodegradable Polymer Matrix." Jurnal Kejuruteraan 31, no. 1 (April 30, 2019): 65–76. http://dx.doi.org/10.17576/jkukm-2019-31(1)-08.
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This review paper deals with the previous and current works published on the kenaf fiber composites. Kenaf is grown commercially in South East Asia country and widely used in the construction and infrastructure as well as in the automotive industry. Kenaf fiber is usually reinforced with synthetic based polymer resin such as polypropylene. However, recent studies tend to concern towards the environmental issues which kenaf fiber act as an alternative natural fiber competitor. Moreover, the combination of the natural fiber and the biodegradable polymer able to reduce the negative impact on human health. Hence, researcher-initiated the interest focusing on the biodegradable materials obtained from the renewable sources. A huge attention gave to the kenaf fiber reinforced bio-polymer materials such as polylactic acid. The processing technique and the fiber orientation within the composite materials are discussed extensively in order to obtain the maximum composite performance. Results indicated that the mechanical properties; tensile strength and tensile modulus, are improved as the kenaf fiber was aligned in uni-direction. Therefore, this paper overview on the kenaf retting types in the common form of kenaf fibers and discussing the thermoplastic polymer matrices types used in the fabrication processes. In addition, the challenging of using kenaf fibers composites and its application in the automotive industry also highlighted.
Dissertations / Theses on the topic "Synthetic fibers industry"
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Tshifularo, Cyrus Alushavhiwi. "Comparative performance of natural and synthetic fibre nonwoven geotextiles." Thesis, Nelson Mandela Metropolitan University, 2017. http://hdl.handle.net/10948/21362.
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The aim of this work was to establish a range of suitable process parameters which can be utilized to produce needlepunched nonwoven fabrics for geotextile applications. Nonwoven fabrics were produced from 100% PP, a blend of 50/50% PP/kenaf and 100% kenaf fibres. The depths of needle penetration of 4, 7 and 10 mm, stroke frequencies of 250, 350 and 450 strokes/min and mass per unit area of 300, 600 and 900 g/m2 were utilized for producing the fabrics, on a Dilo loom. The effect of depth of needle penetration, stroke frequency and mass per unit area on the fabric properties, namely, tensile strength, puncture resistance, pore size, water permeability and transmissivity were analysed. In addition, the effect of chemicals, namely, 10% ammonium hydroxide (NH4OH), 10% sodium chloride (NaCl) and 3% sulphuric acid (H2SO4) solutions on degradation of the fabric was also studied. The results have shown that density, thickness and nominal weight of the needlepunched nonwoven fabrics were related to each other and they were influenced by stroke frequency, depth of needle penetration and feed rate of the needlepunching process. The increase in nominal weight of the fabrics also increases thickness and density of the fabrics. The tensile strength and puncture resistance of the fabrics increased with the increases in stroke frequency, depth of needle penetration and fabric mass per unit area. However, lower tensile strength and puncture resistance were achieved in the fabrics produced at lower stroke frequency, lower depth of needle penetration and lower mass per unit area. Bigger pores were resulted in the fabrics produced at lower stroke frequency, lower depth of needle penetration and lower mass per unit area, however, pore size decreased with increases in stroke frequency, depth of needle penetration and mass per unit area. Water permeability depends on the pore size, properties of the fibres, stroke frequency, depth of needle penetration and mass per unit area. Higher tensile strength and higher puncture resistance were achieved in the needlepunched nonwoven fabrics produced from 100% PP fibres, therefore, they are suitable for some load-bearing geotextile applications, such as reinforcement and separation. However, higher water permeability was achieved in the fabrics produced from 100% kenaf fibres, therefore, they are ideal for geotextile applications where good water permeability is required. Higher values for transmissivity were obtained in the fabrics produced from a blend of 50/50% PP/kenaf fibres, therefore they are suitable for drainage applications. The fabrics produced from a blend of 50/50% PP/kenaf fibres achieved better values of tensile strength, puncture resistance, pore size and water permeability in comparison to that produced from 100% PP and 100% kenaf fibres. However, better tensile strength and puncture resistance were achieved in the fabrics produced from 100% PP fibres and bigger pore size and higher water permeability were achieved in the fabrics produced from 100% kenaf fibres. Therefore, it can be suggested that the nonwoven fabrics produced from a blend of 50/50% PP/kenaf fibres can fulfil almost all requirements of geotextile applications, such as, filtration, separation, reinforcement and drainage. The fabrics produced from 100% PP fibres were not damaged or deteriorated when treated with all the three chemicals due to chemical inertness of polypropylene. However, the fabrics produced from a blend of 50/50% PP/kenaf and 100% kenaf fibres were damaged and deteriorated when treated with H2SO4.
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Giordano, João Batista. "Tratamento corona sobre superficies texteis." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266145.
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Orientador: João Sinezio de Carvalho CamposTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica
Made available in DSpace on 2018-08-10T13:40:00Z (GMT). No. of bitstreams: 1 Giordano_JoaoBatista_D.pdf: 4390680 bytes, checksum: 205aa7153da8e4745f9366e58adcb8cf (MD5) Previous issue date: 2007
Resumo: Dentre as técnicas de modificação de superfícies aplicadas na indústria para melhorar adesão, o tratamento por descarga corona é amplamente utilizado. Durante o tratamento por descarga coro na, espécies ativas são geradas, as quais podem reagir com a superfície do polímero ocasionando quebra de cadeias e formação de radicais, criando assim grupos polares na superfície e conseqüentemente, aumentando a sua energia superficial e propriedade de adesão. Neste trabalho utilizaram-se tecidos de poliéster e de algodão. Nos processos convencionais de preparação de tecidos são usados agentes químicos que agridem os efluentes têxteis, assim a descarga corona propõe-se como tratamento prévio do material sem ação de tais agentes, sendo tratamento único e apenas físico. Os objetivos deste trabalho são: 1. Tratar com descarga corona tecidos de poliéster e tecidos de algodão (engomado, lavado e desengomado); 2. Verificar hidrofilidade e absorção de corantes em tecidos de algodão tratados com descarga corona; 3. Verificar propriedades mecânicas em tecidos tratados com descarga corona. 4. Verificar a adesão de pigmentos em de tecidos de poliéster tratados com corona. Tecidos foram submetidos à descarga: corona variando-se o tempo exposição e altura entre os eletrodos, em seguida foi realizada testes de hídrofilidade, absorção de corante tipo reativo, adesão de pigmentos, solidez a lavagem e ensaios de resistência à tração e alongamento. Foi utilizada a técnica de microscopia óptica, ensaio de hidrofilidade para caracterizar os efeitos causados. Os resultados mostram que: houve aumento da hidrofilidade do tecido de algodão que de 50% em amostra sem tratamento passou até a 280% com o tratamento, observou-se também que com te~pos de 1 mino já ocorrem modificações nos tecidos quanto a hidrofilidade e absorção de corantes; houve aumento da absorção de corante nas regiões tratadas principalmente em processos contínuos de tingimento; ocorreu boa aderência de pigmentos em tecidos de poliéster tratados; não ocorrem alteração das propriedades mecânicas (resistência a tração e alongamento) nas amostras tratadas.
Abstract: Amongst the techniques of modification of surfaces applied in the industry to improve adhesion, the treatment for discharge corona widely is used. During the treatment for discharge corona, active species are generated, which can consequently react with the surface of polymer causing chain in addition and formation of radicals, thus creating polar groups in the surface and, increasing its superficial energy and property of adhesion. In this work they had been used weaveed of polyester and cotton. In the conventional processes of fabric preparation they are used chemical agents whom the effluent textile attack, thus the discharge corona is considered as previous treatment of the material without action of such agents, being treatment only e only physicist. The objectives of this work are: 1.To deal with discharge corona weaveed to polyester and fabrics cotton (starchy, washed and dissolved the gum); 2. To verify water absorption and absorption of corantes in fabrics of cotton treated with discharge corona; to 3.Verificar mechanical properties in fabrics dealt with discharge corona. 4. To verify the pigment adhesion in of treated polyester fabrics with corona. Fabrics had been submitted to the discharge corona varying the time exposition and height between the electrodes and, after that water absorption tests had been carried through, absorption of corante reactive type, pigment adhesion, solidity the laudering and assays of tensile strenght and allonge. The technique of optic microscopy was used, assay of water absorption to characterize the caused effect. The results show that: it had increase of the hidrofilidade of the cotton fabric that of 50% in sample without treatment passed until 280% with the treatment, was 9.lso observed that with times of 1 min. already the water absorption and absorption of corantes occur modifications in fabrics how much; it had increase of the absorption of corante in the regions treated mainly in continuous processes of dyeing good pigment tack occurred in treat polyester fabrics; they do not occur alteration of the mechanical properties (resistance the traction and allonge) in the treated samples.
Doutorado
Ciencia e Tecnologia de Materiais
Doutor em Engenharia Química
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Kamenopoulou, Vassiliki. "Proprietes dosimetriques des fibres textiles : application a la dosimetrie par resonance paramagnetique electronique d'un accident d'irradiation gamma." Toulouse 3, 1987. http://www.theses.fr/1987TOU30172.
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Hultkrantz, Martina. "An overview on the environmental impacts of synthetic leather made of hemp fiber with preliminary lifecycle assessment." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-233980.
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This report covers a preliminary life cycle assessment (LCA) on imitation leather made from hemp fiber (hemp leather) and a comparison to bovine leather, to examine whether hemp leather is an environmentally sustainable alternative. The bovine leather industry is responsible for heavy chemical use and emissions, detrimental effects to the environment as well as to human health. The United Nations (UN) and other organizations call for immediate action against the animal product industry sector to greatly reduce emissions and protect the environment. Hemp is a versatile plant that can be used for many things, including paper, composites, textiles, food and medicine, and is probably a suitable material for imitation leather. The hemp plant requires little inputs, grows fast and without pesticides, has positive effects on the environment and can be cultivated on every inhabited continent. The preliminary LCA was based on a patent describing the manufacturing process of hemp leather completed with data from literature and a few assumptions made. LCA-results for bovine leather were collected from literature and the two leather fabrics were then compared. The comparison showed that hemp leather is superior to bovine leather in all compared categories except for water consumption and hazardous waste. Bovine leather had 99% more energy use, 78% higher acidification potential (AP), 99,9% higher eutrophication potential (EP) and 83% higher global warming potential (GWP) than hemp leather. The large water consumption in the manufacturing phase of hemp leather is possible to be explained by over dimensioning of inputs. The report concludes that hemp leather would be the environmentally and ethically admirable choice between the two leathers and that more research on more modern methods of manufacturing it should be performed.Denna rapport omfattar en preliminär livscykelanalys (LCA) på syntetiskt läder gjort av hampfiber (hampläder) och en jämförelse med nötskinn, för att undersöka om hampläder är ett miljövänligt alternativ. Nötskinnsindustrin är ansvarig för stor kemikalieanvändning och tunga utsläpp, skadlig inverkan på miljö samt människors hälsa. Förenta nationerna och andra organisationer fordrar till omedelbar handling mot djurindustrisektorn för att drastiskt minska utsläpp och skydda miljön. Hampa är en mångsidig växt som kan användas inom många olika applikationer, såsom till papper, kompositer, textiler, mat och medicin, och är förmodligen ett passande material till imitationsläder. Hampan behöver liten mängd tillförd energi, växer fort och utan bekämpningsmedel, har positiva effekter på miljön och kan odlas på alla bebodda kontinenter. Den preliminära LCA:n är baserad på ett patent beskrivande hampläders produktionsprocess, kompletterat med data från litteratur samt några antaganden. LCA-resultat från nötskinnsproduktion samlades från litteratur och resultaten från de två lädertyperna jämfördes sedan. Jämförelsen visade att hampläder är överlägset nötskinn i alla jämförda kategorier utom vattenkonsumtion och farligt avfall. Nötskinn har 99% högre energianvändning, 78% högre försurningspotential (AP), 99,9% högre övergödningspotential (EP) och 83% högre potential till global uppvärmning (GWP) än hampläder, enligt resultaten. Hampläders produktionsprocess stora vattenkonsumtion kan troligtvis förklaras av en överdimensionering av indata. Denna rapport drar slutsatsen att hampläder skulle vara det mest miljövänliga och etiskt försvarbara valet mellan de två lädertyperna och att modernare produktionsmetoder för hampläder bör studeras.
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Vève, Jean-Christophe. "Interpretation microstructurale de l'endommagement par fatigue mecanique des fibres de polyester pour le renforcement des elastomeres." Paris, ENMP, 1987. http://www.theses.fr/1987ENMP0065.
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Analyse de l'evolution microstructurale des monofilaments de polyester 1) au cours de la fatigue par microspectrometrie laser a effet raman, diffusion rx aux petits angles et analyse viscoelastique dynamique et 2)avant sollicitation par diffusion rx aux grands angles et spectrometrie ir. Modele microstructural a 4 phases. Relation microstructures durabilite
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KENIS, Patrick. "The social construction of industries: collective action among chemical textile fibre firms in West Germany, Italy and Britain, 1968-1985." Doctoral thesis, 1989. http://hdl.handle.net/1814/5264.
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Defence date: 3 May 1989Examining board: Philippe C. Schmitter, Stanford University (supervisor) ; Bernd Marin, European Centre Vienna (co-supervisor) ; Mark Elchardus, Free University Brussels ; Cornelis Lammers, University of Leiden ; Susan Strange, European University Institute
PDF of thesis uploaded from the Library digitised archive of EUI PhD theses completed between 2013 and 2017
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Kao, Feng-Hsi, and 高豐熙. "The Impact of South Korea Signed FTA on the Domestic Polyester Staple Fiber Industry and the Future Business Strategy Research-Case Study of Shin Kong Synthetic Fibers in Polyester Staple Fiber." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/50635814923865004155.
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碩士中原大學
企業管理研究所
101
Abstract The Asian financial crisis in 1997, Indonesia, South Korea and Thailand, the three countries most affected by this financial turmoil, such as Hong Kong, Laos, Malaysia and the Philippines have been affected. South Korea, after the financial turmoil began to adjust the economic and trade policies. In order to explore the international trade market, the South Korean government is actively seeking the signing of free trade agreements with other countries. During this period has been completed with the ASEAN (2004), Chile (2002), Singapore (2005), Thailand (2009), Vietnam (2012), India (2009), Peru ((2010), the European Union (2011) and the United States The signing of the Free Trade Agreement (2012) and so on, especially the signing of free trade with the United States in 2012. In South Korea full of triumph, the economic outlook is excellent, the Korean economy will fly in the future, but Taiwan is still unable to do anything. In this study, the most important oriented following: 1. To discuss with the background of the world's largest free trade zone and contents. 2. ECFA on Taiwan economic and trade predicament if that helps. 3. Situation analysis of the global polyester industry. 4. Taiwan's polyester industry, by marketing literature to explore for South Korea after the signing of free trade agreements, target market selection and formulation of business strategy. Due to Taiwan's special status, the international only 23 countries and Taiwan have diplomatic relations in right now, and almost are small countries, even if signed the FTA with diplomatic countries for Taiwan's international trade do not help so much. But if it is with the economic powerful countries signed, limited in international relationship can be said obstacles. How to overcome difficulties, from this research study, can be roughly sketched out an outline. The differential products are a must go the way, but the cost of control is also of paramount importance. How to differentiation and cost control link, this study also lists some of the practices. Furthermore, from this study that the polyester industry not only suffered the FTA impacted, and it gets to have also been the ECFA effect. Polyester industry faces to such a hostile environment, business transformation is necessary. In the past, mass production patterns need to make changes. Combination upstream and downstream, it is also the direction of future efforts. In addition, the choice of target market, it need to understand the region's consumer behavior too, the right products to the right place to be able to generate greater synergy. Face to environment unfavorable circumstances, the uncompetitive products and disadvantaged businesses, will gradually retreat from the market. In order to avoid becoming the next to be eliminated objects, future industry resilience needs to be more sensitive and rapid to be able to keep in trend. Keywords: Free Trade Agreement, Economic Cooperation Framework Agreement, Polyester Industry
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Chen, Yi-Jiun, and 陳奕君. "Apply Simutaneous equations method to synthetic fiber industry forcasting." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/41250860016450826392.
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CHUN-CHIEH, HUNG, and 洪俊杰. "A case study on Business Valuation Analysis of synthetic fiber Industry." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/88j39p.
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碩士東海大學
高階經營管理碩士在職專班
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The research adopts Economic Value Added (EVA) as the analysis of indicators to identify the strengths and weaknesses of the case company. and to put forward recommendations for improvement. Exploring the reference, I establish the research method and then combine both strategic and financial aspects following the findings from the case study. Herewith the Discounted Cash Flow Model (DCF) estimates the enterprise valuation of Engineering Industry. The result shows that the expected stock value of the case company is NTD28.91 which competes with its current stock reputation. Moreover, by using the sensitive analysis, I observe that the cost of raw materials and Weighted Average Cost of Capital (WACC) significantly influences EVA. The overall investigation in manufacture strategy, market expansion strategy, finance strategy, and manager decision-making provides the reference of the case company
Books on the topic "Synthetic fibers industry"
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Shelton, Linda C. Manmade fibers. Washington, DC: Office of Industries, U.S. International Trade Commission, 1995.
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Shelton, Linda C. Manmade fibers. Washington, DC: Office of Industries, U.S. International Trade Commission, 1995.
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Shelton, Linda C. Manmade fibers. Washington, DC: Office of Industries, U.S. International Trade Commission, 1995.
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Commission, United States International Trade. Aramid fiber formed of poly para-phenylene terephthalamide from the Netherlands. Washington, DC: U.S. International Trade Commission, 1993.
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United States International Trade Commission. Aramid fiber formed of poly para-phenylene terephthalamide from the Netherlands. Washington, DC: U.S. International Trade Commission, 1994.
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Mexicana, Comisión Petroquímica, ed. La industria de las fibras químicas en México. [México]: Secretaría de Energía, Minas e Industria Paraestatal, Comisión Petroquímica Mexicana, 1990.
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Thomas, Abraham, ed. High performance fibers: Materials, forms, new developments, applications, and markets. Norwalk, CT: Business Communications Co., 1987.
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India. Bureau of Industrial Costs & Prices., ed. Report on techno-economic study of viscose filament yarn, February 1993. New Delhi: Bureau of Industrial Costs & Prices, Ministry of Industry, 1996.
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Davies, Stanley. The man-made fibre industry in Japan. London: Economist Intelligence Unit, 1989.
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India. Office of the Textile Commissioner., ed. Compendium of International textile statistics 2005. Mumbai: Office of the Textile Commissioner, Govt. of India, Ministry of Textiles, 2005.
Find full textBook chapters on the topic "Synthetic fibers industry"
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Yan, Songyi, Celina Jones, Claudia E. Henninger, and Helen McCormick. "Textile Industry Insights Towards Impact of Regenerated Cellulosic and Synthetic Fibres on Microfibre Pollution." In Sustainable Textiles: Production, Processing, Manufacturing & Chemistry, 157–71. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38013-7_8.
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Van Tho, Tran. "Japanese Technology and Industrial Development in Thailand: The Experience of the Synthetic Fibre Industry." In Acquiring, Adapting and Developing Technologies, 305–30. London: Palgrave Macmillan UK, 1995. http://dx.doi.org/10.1007/978-1-349-23775-3_12.
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Pathak, Abhishek K., and Sanjay R. Dhakate. "Carbon Nanomaterial-Carbon Fiber Hybrid Composite for Lightweight Structural Composites in the Aerospace Industry: Synthesis, Processing, and Properties." In Advanced Composites in Aerospace Engineering Applications, 445–70. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-88192-4_23.
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Singh, Sudarshan, and Warangkana Chunglok. "Potential Application of Biopolymers in the Textile Industry." In Biopolymers Towards Green and Sustainable Development, 153–67. BENTHAM SCIENCE PUBLISHERS, 2022. http://dx.doi.org/10.2174/9789815079302122010010.
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Textile configurations are derived from two major sources such as ancient handicraft and modern scientific inventions. Textile fabrication using polymeric fiber is one of the fastest-growing sectors since the 19th century and is currently the secondlargest manufacturing industry after information technology. Although polymers are predominantly used in the development of dosage forms, however recent devolvement in natural polymer chemistry reflects its association with the production of plastics, fibers, elastomers, etc. Innovation using natural polymer fibers-based textile could serve as an alternative capable of replacing synthetic polymer-based fibers. Polymers, especially fibers contribute significantly to the manufacturing of textiles. Moreover, copolymerization of fabrics fibers with excipients demonstrated potential for the development of materials useful in various biomedical applications. Furthermore, to understand the fundamental characteristics of polymeric fibers including structural composition, morphological features such as crystallinity, and orientation, a comprehensive skill is necessary. This chapter discusses the basic materials used in the fabrication of textile products, with emphasizes on bio-based polymers as an alternative to synthetic polymers in the production of fabrics.
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Han, Chang Dae. "Fiber Spinning." In Rheology and Processing of Polymeric Materials: Volume 2: Polymer Processing. Oxford University Press, 2006. http://dx.doi.org/10.1093/oso/9780195187830.003.0011.
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Fiber spinning is one of the oldest polymer processing operations that have contributed significantly to our society, especially after the commercialization of polyamide (nylon) synthetic fibers in the 1940s by DuPont Company. Subsequent commercialization of poly(ethylene terephthalate) (PET) and polyacrylonitrile fibers in the 1950s made the synthetic fiber industry very prosperous. For a given fiber-forming polymer, different spinning techniques can produce fibers possessing markedly different physical and/or mechanical properties. Thus, the fiber industry made continuous efforts through the 1960s and 1970s to modify existing processes and develop new ones. One very important breakthrough from such efforts emerged in the late 1970s, enabling one to melt spin at exceedingly high take-up speeds, widely known today as “high-speed melt spinning.” While the fiber manufacturers carefully guarded their spinning techniques, the commercial developments were documented in numerous patents. Beginning in the early 1960s, some fundamental studies on fiber spinning were reported in the open literature, and they are summarized in the three-volume monograph edited by Mark et al. (1967). An understanding of fiber spinning requires knowledge of momentum, energy, and/or mass transport. In addition, knowledge of macromolecular behavior under deformation (i.e., stretching) is also necessary for understanding such complicated problems as molecular orientation under stretching, crystallization kinetics under cooling, and fiber morphology as affected by spinning conditions. In the late 1950s, and the early 1960s, Ziabicki and coworkers (Ziabicki 1959, 1961; Ziabicki and Kedzierska 1959, 1960a, 1960b, 1962a, 1962b) made seminal contributions to a fundamental understanding of fiber-spinning processes, and their efforts were summarized in Ziabicki’s monograph (1976a). In the 1970s, a new class of synthetic fibers, known as “high-modulus wholly aromatic fibers,” was developed (Bair and Morgan 1972; Daniels et al. 1971; Frazer 1972; Kwolek 1971; Logullo 1971; Morgan et al. 1974) and subsequently commercialized with the trade name of Kevlar by DuPont (Kwolek 1971). The chemical structure of such synthetic fibers consists of rigid rodlike molecules that orient easily along the stretching direction during spinning, giving rise to high modulus in the spun fibers. The chemical structure and mechanical properties of the wholly aromatic fibers are well documented in the monograph edited by Black and Preston (1973).
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Singh, Bhupinder. "ORGANIC FIBERS: SUSTAINABLE SOLUTION FOR TEXTILE INDUSTRY." In Futuristic Trends in Agriculture Engineering & Food Sciences Volume 3 Book 1, 378–84. Iterative International Publisher, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bcagp1ch29.
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Textile processing industry uses thousands of dyes and chemicals resulting in discharge of polluted liquid effluents. The different kinds of dyes used in textile printing consist of hazardous heavy metals. It is one of biggest sector in India which discharge untreated textile effluents on open land, from here it seep into aquifers and increase the contamination of ground water besides air and surface water pollution. The management of waste and other environmental issues in textile industry using appropriate technology and sustainable practices is a very important issue now a day throughout the world. So, there is need to produce the textile materials which are eco-friendly. One of the steps regarding eco-friendly textile is sustainable and organic fiber production. The sustainable fibers can provide a sustainable solution to this sector. The various types of sustainable fiber which are promising in nature are organic cotton, bamboo, soya, hemp and jute etc. It is pertinent to mention that in organic fiber production no synthetic chemicals are used so, usage of sustainable fibers and organic are the one of the best solution to keep our earth clean and to minimize pollution of water, soil and air.Hence, this article discusses about various environmental friendly, ecologicalviable and organic fibers which can be used in textile and fashion sector for better tomorrow.
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Queiroz, Syme Regina Souza, Felipe Augusto dos Santos Alves, Giâcomo dos Santos Freire, Nilton Cesar Almeida Queiroz, and Vera Lucia Dias da Silva. "Tensile properties of composites with glass fibers and curauá fibers in polyester resin matrix." In UNITING KNOWLEDGE INTEGRATED SCIENTIFIC RESEARCH FOR GLOBAL DEVELOPMENT. Seven Editora, 2023. http://dx.doi.org/10.56238/uniknowindevolp-043.
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Synthetic glass fiber is used by several industrial segments, including civil construction in northern Brazil, due to its characteristics and properties that allow lightness and durability to manufactured products. Curauá (Ananas erectifolius), is a plant with flat, hard leaves that occurs in the state of Pará, from which fiber is extracted that may represent great potential for use in composites for the civil construction industry. Thus, polymer composites with polyester resin matrix and reinforcement with short glass and curauá fibers, both 15 mm long and randomly distributed, were produced for comparison of tensile properties. The first results showed better mechanical performance in tensile of the composites reinforced with curauá fibers in relation to composites with glass fibers, on average 53,17%. The water absorption tests of the composites showed similar values, 1.75% with curauá fibers and 1.73% with glass fibers, indicating good wettability of both fibers. The micrographs of the fracture zones in the tensile tests showed better interfacial interaction of the composites with curauá fibers.
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Singh, Satendra, and Pankaj Kumar Gupta. "Natural Fiber-Reinforced Polymer Composite: A Review." In Manufacturing and Processing of Advanced Materials, 141–53. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815136715123010016.
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The manufacturing industry uses a variety of materials, including pure metals, alloys and composites. Due to the inability of pure metals to meet the demands of modern products, a transition in materials from pure metals to composites is taking place. Composite materials are invented to attain the desired properties, including lightweight, high strength, creep resistance, high corrosion resistance, fatigue resistance, high-temperature resistance and high wear resistance. Natural plant fibers, such as flax, hemp, kenaf, jute, sisal, coir and cotton, are a reliable source for producing composites because they have various advantages over synthetic fibers, including cheaper cost, low specific gravity, biodegradability, lightweight, fewer health hazards, availability, low-grade greenhouse emissions and high flexibility. Natural fiber-reinforced polymer composites (NF-RPC) are commonly utilized in automotive applications because they are lighter in weight, resulting in lower fuel consumption and greenhouse gas emissions. The mechanical properties of NF-RPC, such as tensile strength, Young’s modulus, flexural strength, hardness and many others, are affected by several factors, for example, fiber aspect ratio, the weight percentage of fiber, different orientations of fiber, usage of the fabrication process, chemical compositions of fiber and different pre-treatments of fiber. Therefore, in this article, some specific applications, mechanical properties, fabrication techniques of NF-RPC, and methods to enhance the properties of natural fibers, have been discussed.
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Baby, Ruksana, Kavita Mathur, and Emiel DenHartog. "Non-destructive Characterizations of Natural Yarns and Fabrics." In Natural Fiber [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.102587.
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Textiles, next to skin, are an integral part of our lives, govern the skin microclimate, and contribute to our comfort and health. Over the years, natural and synthetic textiles have dominated the industry in diverse application areas. However, when it comes to the sustainability of the raw materials or products, processes, and the environment, the natural polymers or fibers will always dominate the preference. One of the many natural fibers, cotton fiber is the most popular and widely used one, leading to many fundamental researches in the fields of polymers, fibers, fabrics, their manufacturing processes and finishing, as well as in product characterizations and performance evaluations. To-date, most textile-characterization techniques involve processes which compromise the morphology of the textiles being tested, and are mostly destructive. In this chapter, a few novel non-destructive characterizations of textiles, made from natural fibers (specifically cotton), will be discussed which involve X-ray micro-computed tomographic (XRM-CT) three-dimensional (3D) image analysis. Tomographic characterizations allow the investigation of both the surface profiles and the inner construction of the textiles without compromising the morphology. The findings discussed in this chapter will assist in non-destructive characterizations and performance evaluations of other diverse material classes as well.
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Madhu, Amit. "Naturally Colored Cotton: A Sustainable Innovation." In Agricultural Sciences. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.113290.
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Historically, the global textile industry has been characterized by resource-intensive processes, environmental degradation and a high dependence on synthetic dyes that contribute to pollution. In recent years, the quest for sustainability has led to the exploration of alternative methods and materials that minimize the industry’s ecological footprint. Naturally colored cotton fibers, ranging from earthy browns and greens to subdued yellows and reds, are produced by cotton plants that have either been genetically altered or carefully bred. This unique characteristic eliminates the need for chemical dyeing processes, conserving water, energy and chemical usage throughout the textile production cycle. This chapter explores the creative strategy of naturally colored cotton, a potential solution that satisfies both the rising demand for sustainable textiles and environmental concerns. Additionally, discusses possible challenges and issues, such as the agronomic procedures needed to grow cotton with natural colors, the necessity of responsible biotechnology regulation and the integration of these novel fibers into current textile supply chains. It also provides insights into the crucial role that bioengineered fibers can play in defining a more environmentally harmonious and socially responsible future by providing a thorough overview of the advantages, difficulties and prospects of naturally colored cotton.
Conference papers on the topic "Synthetic fibers industry"
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THANKI, NIDHI M., ABIGAIL HENDERSON, JOE FEHRENBACH, CHAD ULVEN, and ALI AMIRI. "ANALYZING THE MECHANICAL PROPERTIES OF THERMOPLASTIC REINFORCED WITH NATURAL FIBERS." In Thirty-sixth Technical Conference. Destech Publications, Inc., 2021. http://dx.doi.org/10.12783/asc36/35904.
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Synthetic fibers such as glass, carbon, etc., are used as reinforcement in polymer composites due to their high strength and modulus. However, synthetic fibers contribute to high costs and have a significant environmental impact. To overcome this challenge, various natural fibers, including banana, kenaf, coir, bamboo, hemp, and sisal fiber, as reinforced in a polymer matrix are investigated for mechanical properties. In this study, biocomposites with natural fibers as reinforced are developed and characterized. Treated and untreated natural fibers such as flax, maple, and pine as reinforced in thermoplastic, in this study, polypropylene (PP), are investigated for the mechanical properties, including tensile, flexural, and impact test. Mechanical test results exhibited that adding the natural fibers enhanced the tensile, flexural, and impact properties. It can be inferred that these biocomposites can be used as potential materials for the automobile industry.
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Mugarura, Isaac, and Mehmet Çevik. "Natural Fibers in Uganda Suitable for Sustainable Natural Fiber Reinforced Composites." In 7th International Students Science Congress. Izmir International guest Students Association, 2023. http://dx.doi.org/10.52460/issc.2023.040.
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The use of natural fibers in composite polymers has grown rapidly and has gained popularity in various areas. Most of these natural fibers can also be found in Uganda. Many sectors are currently shifting to “green technologies” that are environmentally friendly in order to reduce synthetic plastic wastes and pollutions. Natural fibers are at low-cost with high specific properties and low densities. Based on these factors, most developing countries already begun using natural fibers to produce good quality products that are effective and economical. Countries like Uganda are the future source of many known and many unknown natural fibers. One of the uses of natural fiber reinforced composites is the automotive industry; Uganda is a promising country in this sense. In this study, we will review the natural fibers in Uganda suitable for natural fiber reinforced composites. These are, namely, mutuba tree (ficus natalensis), rice and coffee husk, cotton, Sansevieria trifasciata, banana fibers, sisal fibers, marsh grass and bamboo fibers. These plants are found in many other countries; however, a combined investigation is presented in our study. These fibers are mainly used in textiles, automotive industry, and lightweight items. Their future use as structural parts of low to medium strength are evaluated.
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LANGHORST,, AMY, ELISA HARRISON, ANSHUL SINGHAL, MIHAELA BANU, and ALAN TAUB. "REINFORCEMENT OF NATURAL FIBERS VIA SUPERCRITICAL FLUID INFILTRATION OF NANOPARTICLES." In Proceedings for the American Society for Composites-Thirty Seventh Technical Conference. Destech Publications, Inc., 2022. http://dx.doi.org/10.12783/asc37/36411.
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In recent years, consumer products have been increasingly utilizing sustainable materials to attempt to reduce the product’s carbon footprint. For example, the automotive industry has incorporated a variety of natural fiber polymer composites on vehicles in the last 20 years, including wheat straw in the Ford Flex and flax fibers on the Polestar Precept and the Porsche Cayman GT4 Clubsport. However, natural fibers exhibit lower strength and stiffness in comparison to synthetic reinforcing agents, such as glass fiber. In this work, the authors are developing a technique to improve the mechanical performance of flax fibers for use in structural composites. Supercritical fluids, including supercritical-carbon dioxide (scCO2), have been shown to swell and plasticize amorphous polymers, resulting in increased mass transport and absorption of additives. The weak intercellular region within flax fibers, commonly called the middle lamella, consists mainly of amorphous pectin. In this work, the authors hypothesize that scCO2 could be used to swell amorphous polymers in a fiber’s structure (e.g. pectin) and enable reinforcement with nanoparticles, resulting in fiber performance enhancement. Pectin films were created for proof-of-concept experiments and treated with scCO2 at pressures ranging from 1200-4000psi in the presence of titanium dioxide nanoparticles (TiO2). TiO2 nanoparticles were shown to be able to enter pectin films upon treatment with scCO2 for 24 hours. The same treatment process was used on dew retted, mechanically extracted flax fibers and after treatment for 24 hours, the average tensile strength of the fibers was improved by over 40%. Overall, this method of incorporation of nanoparticles within natural fibers could enable development of low-density, low-carbon footprint polymeric composites for use in structural industrial applications.
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Sancaktar, Erol, and Satilmis Basan. "Excimer Laser Treatment of Nylon Fibers for Improved Adhesion to Vulcanized Natural Rubber." In ASME 2020 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/detc2020-22435.
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Abstract Cords made of steel, nylon or polyester are important reinforcement components used in tire industry. The bond strength between the cords and the rubber matrix is closely related to the surface properties of the cord fibers. Previous research revealed Ultraviolet (UV) laser-induced characteristic topography on synthetic fibers after irradiation, which is considered by us as an advantageous factor in developing bonding strength between fiber-rubber composites. We applied various UV laser treatments on the surfaces of nylon fibers in order to obtain similar topographic features. Adhesion is affected by the valleys and peaks that form on the surface of the fibers by laser radiation. In this study, nylon cords were irradiated with different number of UV pulses using an excimer laser to understand the effect of the laser beam on nylon fiber-rubber adhesion. A fiber pull-out test method developed by our research group for bonding strength of nylon cord fibers to carbon black filled and vulcanized natural rubber was utilized in pull-out configuration. The results showed that the maximum pull-out load was reached at 300 laser pulses and then decreased.
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Menezes, Pradeep L., Pradeep K. Rohatgi, and Michael R. Lovell. "Tribology of Natural Fiber Reinforced Polymer Composites." In ASME/STLE 2011 International Joint Tribology Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ijtc2011-61221.
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In recent years, significant academic and industrial research and development has explored novel methods of creating green and environmentally friendly materials for commercial applications. Natural fibers offer the potential to develop lower cost products with better performance, sustainability, and renewability characteristics than traditional materials, particularly in the automotive industry. In this respect, natural fiber reinforced polymer composites have emerged as an environmentally friendly and cost-effective option to synthetic fiber reinforced composites. Hence, in this study, a review of the tribological behavior of natural fiber reinforced polymer composites has been undertaken to better understand their usability for various automotive applications.
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Korayem, Abd-Elrahman, Alexander Kepreos, and Mahmoodul Haq. "Behavior of Bamboo Fiber Reinforced Composites: Pristine and Damaged." In ASME 2023 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/imece2023-114033.
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Abstract Natural fiber composites have proven elusive to large scale use in industry due to their lower mechanical properties than glass or carbon fibers despite their low cost, natural availability, and sustainable sourcing. The large variance in quality, behavior, necessary processing, compatibility with a thermoset matrix and longevity between the different types of natural fibers makes it challenging to descern the optimal formulation of natural fiber to be used as the reinforcing substrate in composite materials. The lack of uniformity in fiber quality within single strands of natural fiber can create challenges for their use in high strength applications where there are high standards for conformity to an ideal material behavior. Accordingly, for those applications it is common practice to use weaved fibers with high levels of homogeniety over large lengths, which is a requirement that can only be met when the fibers are subjected to the same processing parameters in their synthesis, such as E-Glass and PAN Carbon fibers. However, there is still considerably wide use for composites in applications with medium to low strength requirements, such as panelling, framing and brakets. It is in this area that chopped strand mats find wide use and adoption. In this study we investigate the behavior of different types and mixtures of chopped strand bamboo fiber reinforced thermoset composites, where the reinforcing bamboo fiber extraction, processing and their resin infusion have been performed using different techinques. The study covers the bamboo fibers that are extracted both mechanically and chemically, as it also covers resin infusion through VARTM and by manual mixing and consolidating using compression molding. Two different mechanically extracted fiber types are studied. One is extracted by manually seperating individual fibrils from the culm of the fresh bamboo stalk. The other type is extracted using the manner performed in the textile industry, by crushing the stalk and combing the viscose top. The chemically extracted bamboo fiber is processed by delignifying the bamboo stalk, by submerging it in acid, leaving the cellulose fibers intact. These different fiber types are then prepared into chopped strand mats and infused with a thermoset resin containing recycled polyester. Glass Fiber (GF) is also used as the baseline for understanding the standard perfromance of this application. Samples are also drilled to evaluate their response to damage similar to what can be expected for the materials to undergo in joining operations. Results of the study show that industrially prepared GF performs significanlty better than the bamboo fibers when prepared with VARTM, even though the bamboo fibers theoretically have a similar stiffness. Bamboo fibers are however, able to bridge this gap, when prepared in the compression mold, as matrix dominated behavior allows for equalization of contribution across the different fiber regimes. There seems to be minimumal variation in the response of the bamboo fibers to damage by drilling, similar to what is witnessed from GF as well. This shows that for the applications of medium and low strength requirements, bamboo fiber can be a truly competitive alternative to synthetic fibers.
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Malkapuram, Devaiah. "Development of Hybrid Natural Fiber Reinforced Composite Material for Automotive Applications." In International Conference on Advances in Design, Materials, Manufacturing and Surface Engineering for Mobility. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2023. http://dx.doi.org/10.4271/2023-28-0131.
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<div class="section abstract"><div class="htmlview paragraph">Industrialization concerns are stimulating research in development of new materials for automotive industries. Natural fibers which are available abundantly can be extracted naturally from environment. Preventing further pollutants on environment from depleting dwindling wood resources from forests and earth surface.</div><div class="htmlview paragraph">Natural fibers are derived from renewable sources, making them environmentally friendly. Their use in composites reduces dependence on non-renewable resources and helps lower the carbon footprint of automobiles. Natural fibers, such as hemp, jute, and flax are lightweight materials. By incorporating them into polymer composites, the overall weight of automobile components can be reduced, leading to improved fuel efficiency and lower emissions. Natural fibers are generally less expensive than synthetic fibers, incorporating natural fibers into polymer composites can help reduce material costs in automobile manufacturing. Natural fiber polymer composites can be recycled at the end of their life cycle, contributing to a more sustainable automotive industry.</div><div class="htmlview paragraph">In this project work, we have opted Hemp and Short carbon as fiber composite and prepared three composites of Hemp, Short Carbon and hybrid composite of both fibers. The composites are prepared by employing Hand Lay-up technique and evaluated the Density, Water Absorption Tensile Strength, Flexural Strength of the Hemp, Short Carbon and Hemp/Short Carbon fiber reinforced polymer matrix composites.</div></div>
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Jawale, Pradeep, Ashok Mache, Chirag Chhatlani, Omkar Wagh, and Sakshi Pandit. "Identification of Low Vibration Damping Areas on Automotive Door Panel and Improvement Using Natural Fibers." In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2024. http://dx.doi.org/10.4271/2024-01-2338.
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<div class="section abstract"><div class="htmlview paragraph">Vibrations constitute a pivotal factor affecting passenger comfort and overall vehicle performance in both Conventional Internal Combustion Engine (ICE) vehicles and Electric Vehicles (EVs). These vibrations emanate from various sources, including vehicle design and construction, road conditions, and driving patterns, thereby leading to passenger discomfort and fatigue. In the pursuit of mitigating these issues, natural fibers, known for their exceptional damping properties, have emerged as innovative materials for integration into the automotive industry. Notably, these natural fiber-based materials offer a cost-effective alternative to traditional materials for vibration reduction. This research focuses on evaluating natural fibers mainly hemp, jute and cotton fibers for their damping characteristics when applied to a steel plate commonly used in the automotive sector. Using Fast Fourier Transform (FFT) analyzer, the natural frequency and damping properties of these materials are estimated experimentally, with the aim of creating an optimal damping solution when combined with the steel plate to effectively reduce vibrations. Furthermore, the investigation centers on the critical proximity of the passenger door to the passengers. A low vibration damping area on the door has been identified by grid points. Thereafter, natural fibers used strategically applying to areas with the least damping and checked for improvements. The door vibration damping is significantly improved by 30%. This novel approach offers an environmentally friendly and sustainable alternative to the conventional synthetic materials traditionally used in the automotive industry.</div></div>
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Barman, Manik, Corey Crick, and Thomas Burnham. "Behavior of Ultra-thin and Thin Fiber-Reinforced Pavements on Granular Base." In 12th International Conference on Concrete Pavements. International Society for Concrete Pavements, 2021. http://dx.doi.org/10.33593/2ph40dv3.
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With the increasing application of fiber reinforced concrete (FRC) in rigid pavements, the paving industry is now keen to construct thin FRC concrete pavements directly on the granular base layer for low volume roads. In order to understand the feasibility of such thin FRC pavements and to understand the structural responses and distress patterns, experimental test sections were built at the Minnesota Road Research facility (MnROAD) during the summer and fall of 2017. Six different cells were constructed varying in slab thickness, fiber dosage, and base layer thickness. All six of the cells were equipped with various sensors for measuring temperature gradient, dynamic and environmental load responses, as well as joint movement. Periodical distress surveys were conducted to quantify distresses. The joint performance was tested and analyzed for different seasons. The structural responses and distress patterns observed during the first year of the evaluation are presented in this paper. The early age contribution of synthetic structural fibers in reducing joint faulting, fatigue cracking and spalling are assessed based on the comparative performance of the test cells.
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Cioffi, Elena, and Barbara Pizzicato. "Design and tools for the transformation and valorisation of agro-industrial waste for Made in Italy industries." In 13th International Conference on Applied Human Factors and Ergonomics (AHFE 2022). AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1002019.
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Responding to a sustainable production is an imperative that is gaining more and more relevance in the definition of specific programs and strategies at national and international level. This urgency leads towards zero waste and circular models and processes that minimize the extraction of resources from the biosphere and do not create waste; instead, when the waste of natural or anthropogenic transformations cannot be avoided, their valorization as resources must be carried out. The development of integrated supply chains, knowledge transfer between different disciplines and the dialogue between research and industry becomes fundamental for the achievement of these objectives. Existing studies in the literature regarding the agri-food production chain in Italy show that the sector, whose environmental impacts are by no means marginal, is fragmented in many small production companies; an interesting and critical aspect at the same time since the generation of waste is not accompanied by an appropriate dissemination of data at a quantitative-qualitative level and there is no clear regulatory framework available on alternative management and valorisation methods. Design, given its natural inclination to transversality, allows to trace scenarios in which to configure, through interdisciplinary approaches, the sustainability models that are intended to be covered in this contribution. Moreover, its methods and tools allow to develop a critical thinking starting from the very early designing phase. The paper addresses the valorisation of agro-industrial waste in a circular and systemic perspective through the presentation of a review of case studies from the textile supply chain, which is one of the most relevant for Italian industry.Due to its disastrous environmental impact, the global textile industry is today the subject of extensive research aimed at the development of innovative materials and processes in order to overcome the traditional linearity of the textile supply chain. The negative impacts of the textile industry are distributed along the entire value chain and are mainly attributable to greenhouse gas emissions -for which the textile industry represents the fifth manufacturing sector- consumption and pollution of water resources and the production of textile waste. In particular, the production of synthetic fibers, which is estimated to be almost two thirds of the global fiber production, is associated with a high use of non-renewable resources and emissions, which derives from the extraction of fossil fuels. In this sense, the valorisation of agro-industrial waste as secondary raw materials and new sustainable inputs for the textile supply chain, represents an opportunity not yet fully explored, in particular as regards the development of a new generation of fibers, yarns and eco-compatible fabrics alternative to the materials currently in use. Bio-based wastes and by-products from agri-food industry could as well present enormous potential for valorisation in the textile finish due to their intrinsic properties (antimicrobial, prebiotic, antioxidant activity, among others). At present, nevertheless, textiles from agro-residues do not completely meet the requirements to make them an attractive replacement for conventional fibre sources. Future research should therefore focus on identifying new agro-residue based blends that offer both performance and sustainability, adopting a systemic design approach based on interdisciplinary and interconnections as a strategy for innovation.
Reports on the topic "Synthetic fibers industry"
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Beckman, Ivan. Development of alternative air filtration materials and methods of analysis. Engineer Research and Development Center (U.S.), June 2023. http://dx.doi.org/10.21079/11681/47188.
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Development of high efficiency particulate air (HEPA) filters demonstrate an effort to mitigate dangerous aerosol hazards at the point of production. The nuclear power industry installs HEPA filters as a final line of containment of hazardous particles. An exploration of analytical, experimental, computational, and machine learning models is presented in this dissertation to advance the science of air filtration technology. This dissertation studies, develops, and analyzes alternative air filtration materials and methods of analysis that optimize filtration efficiency and reduce resistance to air flow. Alternative nonwoven filter materials are considered for use in HEPA filtration. A detailed review of natural and synthetic fibers is presented to compare mechanical, thermal, and chemical properties of fibers to desirable characteristics for air filtration media. Digital replication of air filtration media enables coordination among experimental, analytical, machine learning, and computational air filtration models. The value of using synthetic data to train and evaluate computational and machine learning models is demonstrated through prediction of air filtration performance, and comparison to analytical results. This dissertation concludes with discussion on potential opportunities and future work needed in the continued effort to advance clean air technologies for the mitigation of a global health and safety challenge.