Relevant bibliographies by topics / Bioplastic material

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Academic literature on the topic 'Bioplastic material'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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Journal articles on the topic "Bioplastic material"

Suwardi, Suwardi, and Nur Hidayati. "Karakteristik Bioplastik Kitosan-Onggok Aren (Arenga pinnata) dengan Penambahan Serbuk Kunyit." Equilibrium Journal of Chemical Engineering 4, no. 2 (February 18, 2021): 65. http://dx.doi.org/10.20961/equilibrium.v4i2.47911.

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Abstrak. Bioplastik merupakan plastik organik yang salah satu fungsinya dapat digunakan sebagai pengemas bahan pangan. Bioplastik dikenal ramah lingkungan karena mudah terdegrasi oleh alam. Kitosan dapat dimodifikasi dengan pati onggok aren dalam pembuatan bioplastik untuk meningkatkan kekuatan bioplastik. Penambahan kunyit ke dalam bioplastik kitosan-serat onggok diharapkan dapat meningkatkan ketahanan terhadap mikroba sehingga bioplastic tersebut dapat digunakan sebagai bahan kemasan makanan. Penelitian ini bertujuan untuk mengetahui karakteristik bioplastik kitosan-onggok aren yang ditambah kunyit dengan variasi 0,3- 1,2 %. Uji fisik yang dilakukan meliputi uji daya serap air, uji kuat tarik, uji elongisitas dan uji biodegradasi. Peningkatan banyaknya kunyit dalam air meningkatkan sifat daya serap air, kuat tarik dan biodegradasinya, sedangkan penurunan kemuluran plastik berkurang dengan peningkatan banyaknya kunyit dalam plastik.Abstract. Bioplastics are organic plastics which one of their functions can be used as food packaging. Bioplastics are known to be environmentally friendly because they are easily degraded by nature. Chitosan can be modified with onggok palm starch in making bioplastics to increase the strength of the bioplastics. The addition of turmeric to the chitosan-onggok bioplastic is expected to increase resistance to microbes so that the bioplastic can be used as a food packaging material. This study aims to determine the bioplastic characteristics of chitosan-onggok palm sugar added with turmeric with a variation of 0.3-1.2%. Physical tests carried out include water absorption test, tensile strength test, elongicity test and biodegradation test. The increase in the amount of turmeric in water increases its water absorption, tensile strength and biodegradation properties, while the decrease in plastic elongation decreases with the increase in the amount of turmeric in the plastic.

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Fathurohman, Viki, Darmawan Alisaputra, and Endaruji Sedyadi. "The Effect of Addition of Avocado Fruit Seeds On Bioplastic Biodegradation." Proceeding International Conference on Science and Engineering 3 (April 30, 2020): 137–45. http://dx.doi.org/10.14421/icse.v3.547.

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Bioplastics can be made with chitosan as a base material with a sorbitol plasticizer and avocado-based seed starch. This study tries to discuss the comparison of avocado seeds to bioplastic biodegradability required based on weight loss in soil media. This research was carried out in empathic, namely making avocado starch, making bioplastics, analyzing bioplastic functional groups, and testing biodegradation of bioplastics in soil media. Variations used are avocado seeds used are 0; 0.1; 0.3; 0.5; 0.7; and 1.4 grams. Bioplastic functional group analysis was performed using FTIR. Bioplastic biodegradability in soil media. Bioplastics are 76% degraded within 12 days in the soil. This shows that bioplastics can be biodegradable.

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Ramadhani, Ajeng Ayu, and Nirmala Fitria Firdhausi. "Potensi Limbah Sisik Ikan Sebagai Kitosan dalam Pembuatan Bioplastik." JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI 6, no. 2 (September 27, 2021): 90. http://dx.doi.org/10.36722/sst.v6i2.782.

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Bioplastics are environmentally friendly plastics derived from natural materials. Bioplastics are easier to decompose when compared to commercial plastics. Bioplastics are generally made from starch contained in plants. But the use of starch as a base material has the disadvantage of producing bioplastics that are not waterproof. Therefore, it is necessary to add chitosan to improve bioplastic characteristics. Chitosan usually comes from the shell of crustacean animals, but it turns out that in fish scales waste, also contains chitosan. Fish scales are a by-product of the process of fish processing. Fish scales are only discarded and not utilized so that they become waste that can pollute the environment. Fish scales have a chitin content that can process into chitosan, which can be useful as an additional ingredient in the manufacture of bioplastics. This review aims to find out the potential of fish scales waste as chitosan in the manufacture of bioplastics. Based on the results of previous research, fish scales have a chitosan content that can use as an additional ingredient in the manufacture of bioplastics. Fish scale chitosan can form bioplastic film with characteristic brownish-yellow film. The addition of fish scale chitosan is also able to improve the water resistance of bioplastic film. Based on the results of the review can be concluded bring fish scales to have the potential as chitosan that can use in the manufacture of bioplastic.Keywords – Bioplastic, Chitosan, Fish Scales.

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Pardian, Pandi, Tomy Perdana, and Trisna Insan Noor. "Cassava Bioindustrial Perspective." E3S Web of Conferences 249 (2021): 02004. http://dx.doi.org/10.1051/e3sconf/202124902004.

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Cassava is one of the commodities of food crops that mainly processed in food products. In addition to being the raw material, cassava food products also have the potential as raw materials for making bioplastics. Processing cassava into bioplastics is carried out by bio-industrial, so the discussion about the process of utilizing cassava up to being bioplastic is interesting to explore. The results of descriptive analysis and literature sharing show that the cassava bio-industry is more environmentally friendly because the production in the form of bioplastic is easier to decompose compared to fossil plastics, the production process with the concept of circulation has the ability to eliminate waste

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Listyarini, Risnita Vicky, Puspita Ratna Susilawati, Rosalia Cahyaningrum, and Nely Tonapa. "Karakterisasi Bioplastik dari Pektin Kulit Labu Kuning (Cucurbita moschata Durch)." Hydrogen: Jurnal Kependidikan Kimia 8, no. 1 (June 17, 2020): 11. http://dx.doi.org/10.33394/hjkk.v8i1.2559.

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Pumpkin (Cucurbita moschata Durch) is one of the vegetable plants that are generally consumed as food. Pumpkin skin is a waste that has potential as a raw material for making bioplastics because it has pectin content. The characteristics of pectin that are gel become a reference in making bioplastics. Bioplastic synthesis consists of four steps, namely the making of pumpkin peel flour, pectin extraction, bioplastic synthesis, and bioplastic characterization. The experimental results show that pumpkin skin waste can be extracted with HCl solution and produce pectin in a ratio of0.1:10 grams (w/w). The results of FTIR spectra characterization showed that bioplastics included pectin which produced absorption of C = O carbonyl groups in 1645 - 1625 cm-1 and C-O stretch groups at 1101 - 1104 cm-1. Bioplastics produced have yellow characteristic. Pumpkin skin waste bioplastics are expected to be an alternative solution to the utilization of waste into products.

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Hubbe, Martin A., Nathalie Lavoine, Lucian A. Lucia, and Chang Dou. "Formulating bioplastic composites for biodegradability, recycling, and performance: A Review." BioResources 16, no. 1 (November 1, 2020): 2021–83. http://dx.doi.org/10.15376/biores.16.1.hubbe.

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Society’s wish list for future packaging systems is placing some daunting challenges upon researchers: In addition to protecting contents during storage and shipping, the material must not bio-accumulate, and it should be readily recyclable by using practical processing steps. This article considers strategies employing bio-based plastics and reviews published information relative to their performance. Though bioplastics such as poly(lactic acid) (PLA) and poly(hydroxybutyrate) (PHB) can be prepared from plant materials, their default properties are generally inferior to those of popular synthetic plastics. In addition, some bioplastics are not easily decomposed in soil or seawater, and the polymers can undergo chemical breakdown during recycling. This review considers strategies to overcome such challenges, including the use of biodegradable cellulose-based reinforcing particles. In addition to contributing to strength, the cellulose can swell the bioplastic, allowing enzymatic attack. The rate-controlling step in bioplastic degradation also can be abiotic, i.e. not involving enzymes. Though there is much more work to be done, much progress has been achieved in formulating bioplastic composites that are biodegradable, recyclable, and higher in strength compared to the neat polymer. Emphasis in this review is placed on PLA and PHB, but not to the exclusion of other bioplastic matrix materials.

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Wong, Y. C., and D. N. Roma. "Potential of the biodegradability and characteristics of bio-plastic from microalgae residues." Algologia 31, no. 1 (March 2021): 80–92. http://dx.doi.org/10.15407/alg31.01.080.

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Petroleum-based plastic has been widely used in many industries. However, it takes hundreds of years to degrade and causes widespread pollution to our environment. These problems led to the invention of bioplastics, which were comprised of natural biopolymers made from starch. The production of bioplastics from food-based starches such as tapioca and corn created competition between food and bioplastic production industries. Hence, this research study focuses on producing bioplastic from microalgae residue, which is a non-food based raw material that uses four different types of plasticizers: glycerol, sorbitol, glutaraldehyde and polyethylene glycol (PEG). Microalgae species for identification were obtained from the fish pond at the University Malaysia of Kelantan, before cultivating the species for 14 days. The microalgae residues were extracted through the centrifugation process. Three species were identified under the light microscope, Chlorella sp., Scenedesmus sp. and Monoraphidium sp. The production of bioplastic involved a manual stirring method using a hotplate magnetic stirrer, followed by drying the bioplastic in an oven at 60 oC. Results obtained showed that sorbitol and glycerol from microalgae are suitable to be used as a plasticizer for the production of bioplastic, however glutaraldehyde and PEG are not suitable. Bioplastics that used PEG and glutaraldehyde became cracked and brittle after the drying process. The characterization of bioplastics includes universal tensile testing machines, Fourier-transform infrared analysis and biodegradability tests being processed//undertaken on glycerol-based and sorbitol based bioplastic. Characterization of bioplastics proved that both glycerol and sorbitol have high potential for applications in daily human life. Bioplastics which used sorbitol as a plasticizer could be used in can be applied the production of plastic goods such as toys and household items due to its good resistance toward stress and minimal flexibility. Meanwhile bioplastics which used glycerol as a plasticizer could be applied to the production of plastic bags and plastic food wrap due to its elastic and flexible nature.

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Zaky, Muhammad Abdul, Rini Pramesti, and Ali Ridlo. "Pengolahan Bioplastik Dari Campuran Gliserol, CMC Dan Karagenan." Journal of Marine Research 10, no. 3 (August 2, 2021): 321–26. http://dx.doi.org/10.14710/jmr.v10i3.28491.

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Indonesia menghasilkan 64 juta ton sampah di laut dan 3,2 juta ton di antaranya adalah plastik. Pencemaran tersebut mendorong pencarian plastik berbahan dasar ramah lingkungan yang dapat terurai . Bioplastik yang merupakan alternatif kemasan plastik dan bersifat ramah lingkungan. Berbagai bahan dasar pembuatan bioplastik telah ditemukan, salah satunya dasar karagenan. Penelitian ini bertujuan mengetahui karakteristik bioplastik hasil ekstraksi karagenan rumput laut Kappaphycus alvarezii dan mengetahui konsentrasi terbaik bioplastik hasil ekstraksi karagenan berdasarkan tebal film, kuat tarik dan persen pemanjangan. Metode yang digunakan adalah eksperimental laboratoris. Ekstraksi menggunakan perlakuan alkali dengan larutan KOH. Proses ekstraksi menghasilkan tepung karagenan yang digunakan sebagai bahan pembuatan bioplastik. Pembuatan bioplastik menggunakan campuran karagenan dengan 5 variasi massa karagenan, gliserol 10 ml dan 1,2 g CMC. Hasil ekstraksi menghasilkan rendemen 41,12%, kadar air 2,75%, kadar abu 19,10%, kekuatan gel 452,38 dyne/cm2dan viskositas 8,33 cP. Hasil penelitian tentang nilai ketebalan film bioplastik terbaik pada karagenan 3,5 g yaitu 0,093 mm, kuat tarik terbaik pada 1,5 g yaitu 2,587 Mpa, elongasi terbaik pada karagenan 1,5 g sebesar 44,992%. Berdasarkan data tersebut, hasil penelitian ini dapat diaplikasikan sebagai kemasan primer produk pangan. Sea pollution in Indonesia has increased every year with one of the pollutants is plastic. Indonesia produces 64 million tons of waste at sea and 3.2 million tons of which are plastic. The pollution is encouraging researchers to create plastic-based materials that are environmentally friendly and biodegradable. Bioplastics are an environmentally friendly alternative to plastic packaging. This study aims to determine the characteristics of bioplastics extracted from Kappaphycus alvarezii seaweed carrageenan and determine the best concentration of bioplastics from the extraction based on film thickness, tensile strength, and elongation percentage. The method that used in the research is experimental laboratory. The extraction uses alkaline treatment with KOH solution. The extraction process produces carrageenan flour which will be used as a bioplastic material. Making bioplastics using a mixture of carrageenan with 5 variations of concentration, glycerol 10 ml and 1.2 g CMC. The results of extraction showing 41.12% yield, 2.75% moisture content, 19.10% ash content, 452.38 dyne / cm2 gel strength, 8.33 cP viscosity. Carrageenan with the best value of bioplastic film thickness is 3.5 g which is 0.093 mm, the best tensile strength is achieved at 1.5 g with a tensile strength value of 2.587 MPa, the best elongation is achieved at 1.5 g with a value of 44.992%. Based on data showing that this research can be applied as primary packaging for food products.

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Simonic, Marjana, and Fras Zemljic. "Production of bioplastic material from algal biomass." Chemical Industry and Chemical Engineering Quarterly, no. 00 (2020): 26. http://dx.doi.org/10.2298/ciceq191024026s.

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Bioplastic. composite material was developed from polylactic acid used as basic polymer and microalgae. Two types of biomaterials were prepared based on the proportion of microalgae and polylactic acid. The mass ratios were set to 5:95 %w/w and 10:90 %w/w. Firstly, Spirulina was chosen as initial material and secondly a mixed culture of microalgae community from the biogas digestate treatment. The aim of the research was to study the characteristics of materials in order to determine whether the algal biomass community could be used in the production of bioplastics. It was found out that microalgae do not significantly impact the properties of the polylactic acid material. The degree of material crystallinity increased, the melting temperature reduced, and the modules of losses increased.

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Amri, Idral, Khairani, and Irdoni. "Studi karakteristik sintesis bioplastik menggunakan bahan dasar ubi kayu dengan variasi penambahan selulosa nanas dan pengadukan." CHEMPUBLISH JOURNAL 4, no. 2 (December 31, 2019): 62–70. http://dx.doi.org/10.22437/chp.v4i2.7649.

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Bioplastic or biodegradable plastics are polymers that are composed of organic monomers found in starch and cellulose. The purpose of this research is to make bioplastics with use of raw material starch cassava and cellulose filler pineapple leaves, by varying the speed of stirring and the number of fillers, as well as knowing the nature of the bioplastic mechanics (Modulus Young, Elogenasi , Strong tensile), biodegradability, morphology and site. The methods on this research started from the preparation of raw materials, the manufacture of cellulose pineapple, the manufacture of cassava starch and the manufacture of bioplastics. The concentration of fillers used in the study was 0.3 grams, 0.6 grams, 0.9 grams, 1.2 grams and 1.5 grams in every 10 grams of starch, stirring variations of 200 rpm and 300 rpm. And obtained the best results in this study is bioplastic which has a strong tensile 13.24 Mpa, elongation 5.16%, modulus young 1072.83 Mpa, biodegrability of the land for 7 days, site 33.33%, obtained at a concentration of 1.5 grams cellulose and pineapple Stirring 300 rpm.

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Dissertations / Theses on the topic "Bioplastic material"

Johnsson, Nathalie, and Fredrik Steuer. "Bioplastic material from microalgae : Extraction of starch and PHA from microalgae to create a bioplastic material." Thesis, KTH, Materialvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-231508.

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Microalgae used in sewers to capture CO2 eventually turns into waste material. Through the use oftheir biomass, the waste algae can be given a new purpose. In this study attempts to extract starch or PHA from three different algae; Calothrix Scytonemicola, Scenedesmus Almeriensis and Neochloris Oleoabundans, were made. We also attempted to create a bio-based plastic material. Both Scenedesmus Almeriensis and Neochloris Oleoabundans are starch rich microalga. By washing with acetone, cryo grinding, use of ultrasonic homogenizer and dialysis, starch was likely extracted successfully. The extracted material and the plasticiser Carboxymethyl Cellulose (CMC) was used to cast plastic film. The cast film was very thin and brittle; perhaps by using different plasticisers or additives a more usable bio-based plastic material can be created. The PHA rich algae Calothrix Scytonemicola was used to extract PHA. The algae was washed with acetone, cryo grinded and then mixed with Sodium Hypochlorite(aq) and deionised water to extract the desired PHA. Due to a shortage of algae very small amounts of material could be extracted. Therefore, the casting of a plastic film was performed with commercial PH3B, which is a type of PHA. Three attempts were conducted. The first one with only chloroform, the second one with CMC and chloroform and the last one with Sucrose Octaacetate and chloroform. The film with Sucrose Octaacetate gave the best plastic material in regards to mechanical properties.
Mikroalger som används i kloaker för att binda CO2 blir till slut restavfall. Genom att använda dess biomassa kan restalgerna få ett nytt syfte. I denna studie utfördes extraktionsförsök av stärkelse samt PHA från tre olika alger, Calothrix Scytonemicola, Scenedesmus Almeriensis och Neochloris Oleoabundans. Ytterligare försök genomfördes för att försöka framställa ett biobaserat plastmaterial. Både Scenedesmus Almeriensis och Neochloris Oleoabundans är stärkelserika mikroalger. Genom att tvätta dem med aceton, kryomalning, användning av en ultrasonic homogenizer och dialys kunde stärkelse troligtvis extraheras. Det extraherade materialet blandades med karboxymetylcellulosa (CMC) för att skapa en plastfilm. Filmen blev väldigt tunn och spröd, således behövs antingen en annat mjukningsmedel eller tillägg av additiv för att skapa ett mer användningsbart biobaserat plastmaterial. Den PHA-rika algen Calothrix Scytonemicola användes vid extraktionen av PHA. Algerna tvättades med aceton och kryomaldes innan PHA förhoppningsvis extraheras med hjälp av natriumhypoklorit(aq) och avjonat vatten. På grund av en för liten mängd tillgänglig alg extraherades endast en liten mängd material. Det var därför inte möjligt att skapa en plastfilm av vårt extrakt utan istället användes kommersiell PH3B, som är en typ av PHA. Tre försök genomfördes, en med endast kloroform, en med CMC och kloroform och den sista med sucrose octaacetate och kloroform. Den sistnämnda filmen gav det bästa plastmaterialet med avseende på de mekaniska egenskaperna.

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Tonuk, Damla. "Making bioplastics : an investigation of material-product relationships." Thesis, Lancaster University, 2016. http://eprints.lancs.ac.uk/78314/.

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This study explores how bioplastics come into being and are changing by focusing on the relationship between bioplastic materials and the products into which they are made. Bioplastics, which are types of plastics that are made from plant sources and/or can be decomposed by microbial activity, are a challenging set of materials not only because of their variety, but also because of the multitude of industries, actors and socio-technical arrangements involved in their making. I explore the different places in which bioplastics are made; in practices of categorising and standardising and so defining bioplastics, in production and the realisation of bioplastics in everyday life through their substitution for other materials, and in branding where bioplastics are made variously visible, as well invisible, as their particular qualities are enacted in specific material-product relationships. I draw conclusions about the nature of the relationship between materials and products, how they are separate but also intricately interconnected, at the same time acknowledging that what is named as a material and as a product is contingent upon the stakeholder in the production chain of materials and products. I detail the ways in which materials get shaped by and also shape the standardization and production infrastructures, interests of different actors, competitor materials, and values at stake within their interaction to specific products. The aim of my study is to open up new connections and pathways for the study of materials, as well as objects, within the social sciences.

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Bhardwaj, Rahul. "Modification of polylactide bioplastic using hyperbranched polymer based nanostructures." Diss., Connect to online resource - MSU authorized users, 2008.

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Zhao, Lei. "Novel bio-composites based on whole utilisation of wheat straw." Thesis, Brunel University, 2013. http://bura.brunel.ac.uk/handle/2438/7359.

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This thesis reports research work in the development of biocomposites based on whole utilisation of renewable wheat straw for industrial applications. The concept of “whole utilisation” is based on a previous work on a novel twin-screw extrusion technology for processing of feedstock in wheat straw reinforced bio-composites. It demonstrated that straw raw material could be restructurised into a feedstock with cellulose fibre finely dispersed in the non-cellulose matrix, which can be utilised as a bonding phase without having to be removed as in conventional processes to extract the cellulose. The whole straw can thus be utilised to avoid waste of materials and the negative impacts to environment associated with the extraction process. Raw wheat straw in this research was prepared in three ways: size reduction through mechanical milling, pre-treatment by aqueous NaOH solution and deep preparation with aqueous NaOH solution soaking followed by extrusion fractionation. Prepared wheat straws were processed into varieties of forms according to the applications. They were hot-compressed into self-reinforced composite with good flow ability and also processed through extrusion and compression moulding to compound with other biopolymers as good filler. The relationships of processing parameter and property, as well as formulation and property were established for each form of product, which provides a key understanding of the whole development circle of an end product. Through this research, scientific and technical problems has been addressed in materials formulation/processing, product design/manufacturing, enhancement of functionality/ performance as well as economical/environmental assessment so as to develop a series of cost-effective bio-composites and products, which satisfy diverse technical and environmental performance requirements in the industrial sectors across packaging, horticulture, building/construction and shooting sports.

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Pereira, Joana Sofia Marques. "Bioplastics production through mixed microbial cultures eco-engineering." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/21085.

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Mestrado em Biotecnologia
Bioplastics have been the focus of interest as a sustainable alternative to conventional plastics. Among those, polyhydroxyalkanoates (PHA) can be highlighted, not only for their biocompatibility and biodegradability, but also because they can be produced by mixed microbial cultures (MMC) from agro-industrial wastes. This allows to substantially reduce the production costs and valorize alternative substrates. PHA have a wide range of characteristics according to their composition, which allows them to be used in many applications. The polymers characteristics can be manipulated through the control of several operational parameters during the production process. Production of PHA by MMC in this work was based in a three-stage process: acidification of a by-product of the paper industry, hardwood spent sulphite liquor (HSSL), selection of a PHA accumulating microbial culture and PHA production. The selection step occurred in a sequencing batch reactor (SBR), operated for 180 days, and whose conditions were changed in order to select for a PHA-accumulating culture and with good PHA volumetric production. Three pseudo-stationary states (PSS) were achieved after successive increases in the selective pressure, a clear indication that the MMC was able to adapt to the substrate and to the imposed conditions. In the last step of this work several accumulation assays were performed that allowed for the validation of the use of HSSL acidified under different conditions and Condensate (another byproduct of the paper industry) for PHA production. The best test performed achieved a maximum accumulation of 74.7% cdw and a volumetric productivity of 0.27 gPHA/L.h. This work allowed to show the potential of the use of PHA producing MMC as a way of valorization of agroindustrial byproducts and residues.
Os bioplásticos têm sido foco de interesse como alternativa sustentável aos plásticos convencionais. Entre os vários biopolímeros destacam-se os polihidroxialcanoatos (PHA), não só pela sua biocompatibilidade e biodegradabilidade, mas também porque podem ser produzidos por culturas microbianas mistas (MMC) a partir de resíduos agroindustriais. Desta forma é possível reduzir substancialmente o preço de produção destes polímeros e valorizar substratos alternativos. Os PHA apresentam características muito variadas de acordo com a sua composição, o que permite que sejam utilizados em diversas aplicações. As características do polímero podem ser manipuladas através do controlo de vários parâmetros operacionais durante o processo de produção. A produção de PHA por MMC neste trabalho foi feita com recurso a um processo em três fases: acidificação de um subproduto da indústria papeleira, o licor de cozimento ao sulfito ácido acidificado (HSSL), seleção de uma cultura microbiana acumuladora de PHA e produção de PHA. A seleção ocorreu num reator descontínuo sequencial (SBR), operado durante 180 dias, e cujas condições foram alteradas de forma a selecionar uma cultura acumuladora de PHA e com boa produtividade volumétrica de PHA. Três estados pseudo-estacionários (PSS) foram atingidos após sucessivos aumentos na pressão seletiva, uma indicação clara de que a MMC foi capaz de se adaptar ao substrato e às condições impostas. No último passo do trabalho foram realizados vários testes de acumulação que permitiram validar a utilização de HSSL acidificado em condições diferentes e Condensado (outro subproduto da índustria papeleira) como substratos para a produção de PHA. O melhor teste realizado apresentou uma acumulação máxima de 74.4% cdw e uma produtividade volumétrica de 0.27 gPHA/L.h. Este trabalho permitiu mostrar a potencialidade do uso de MMC produtoras de PHA como forma de valorização de subprodutos e resíduos agroindustriais.

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Augustsson, Jimmy, and Jonathan Högfeldt. "Produktion av polyhydroxyalkanoater (PHA) av avloppsvatten från massa och pappersindustri : En studie kring bakteriernas förmåga att ackumulera PHA beroende på sammansättning av karboxylsyror." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-80660.

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Since the beginning of the 20th century plastic has been a widely used material, which has resulted in large quantities of plastic being produced in the last century. The plastics of today are mainly produced from fossil raw materials, which gives it a high climate impact. Plastic also has a long service life, which creates problems with handling after the new period when new plastic is produced at a faster rate than plastic debris can be recycled or incinerated. One possible approach is to switch from plastic from fossil sources to bioplastics, which is produced by renewable sources. This means a reduction in the environmental impact as the amount of fossil CO2 emissions from combustion of plastics would decrease. Polyhydroxyalkanoates (PHAs) are created by short volatile fatty acids (VFAs) added to bio sludge from a wastewater treatment plant at a pulp and paper mill where there is a lot of bacteria and microorganisms. Some of the bacteria in the sludge have the ability to accumulate PHA when VFA is added in excess and then be able to use it as an energy and carbon source in cases of starvation. This means that PHA produced in this way can be degraded by bacteria making it biodegradable while having similar properties as oil-based plastics. Production of PHA is currently expensive as it is often necessary to purchase VFA for production. To make it economically sustainable to replace oil-based plastics with PHA, the cost of PHA production must therefore be reduced. This can be done by using mixed bacterial cultures from, for example, industrial wastewater treatment plants and by creating their own composition of VFA through fermentation. At the paper mill at BillerudKorsnäs Gruvön there are several process streams that today are led to the water treatment plant, one of which is from PM6 (Paper Machine 6). By fermenting that stream, VFA can be formed with a composition of acetic acid, propionic acid, and butyric acid. The current may thus be suitable to use as a substrate in PHA production. Another way to produce VFA is to ferment the residual flow from hydrothermal carbonation (HTC) of bio sludge. According to (Samorì et al., 2019), acetic acid, butyric acid and valeric acid are formed, which means that even this stream may be suitable as a substrate for PHA production. The purpose of this thesis is to investigate the effects of the composition of VFA on the production of PHA from forest industrial bio sludge. The study covers two different cases, Case PM6 and Case HTC, where two different types of composition of VFA are added to paper sludge from the paper mill. The experiments were performed in cylindrical tanks on three occasions where the first two experiments had a volume of 30 liters and the last experiment a volume of 10 liters. On the first occasion, the maximum accumulation rate in the growth phase was studied. In the second instance, a high accumulation rate was sought, but also survival after the growth phase. The first two trials were batch trials where the sludge was dosed until saturation was achieved. On the third occasion, the possibility of carrying out PHA production with a continuous sludge exchange was studied. The experiments were analyzed by FTIR which provided information on the absorbance of the sludge which shows how the PHA concentration increased during the course of the experiments. Extractions were then performed to obtain the concentration of PHA that eventually accumulated in the sludge. The results show that biomass from BillerudKorsnäs Gruvön's mills accumulated PHA faster with VFA composition from fermented PM6 effluent compared to VFA composition from fermented HTC condensate. Calculations made with input from the experiments indicate that it is possible to produce a larger amount of PHA per year with Case PM6. The conclusion is therefore that Case PM6 is preferable if as large a PHA production as possible wants to be achieved. Case HTC is instead preferred if reduced PHA production can be tolerated in favor of biocarbon production.

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DOLGHI, Sandro Martins. "Avaliação de implantes de polimetilmetacrilato (PMMA) para procedimentos de bioplastia." Universidade Federal de Campina Grande, 2014. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/347.

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Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-04-09T18:16:27Z No. of bitstreams: 1 SANDRO MARTINS DOLGHI - DISSERTAÇÃO PPG-CEMat 2014..pdf: 1349252 bytes, checksum: 7e20e2840dc2a5d2e873cd9b77ed0100 (MD5)
Made available in DSpace on 2018-04-09T18:16:27Z (GMT). No. of bitstreams: 1 SANDRO MARTINS DOLGHI - DISSERTAÇÃO PPG-CEMat 2014..pdf: 1349252 bytes, checksum: 7e20e2840dc2a5d2e873cd9b77ed0100 (MD5) Previous issue date: 2014-12-19
O culto à beleza está em evidência no Brasil e no mundo, levando ao crescente aumento de técnicas e procedimentos para corrigir defeitos estéticos e minimizar os efeitos do envelhecimento. Diversas substâncias preenchedoras com fluidos de alta viscosidade ou partículas de polímeros em suspensão têm sido utilizadas em larga escala em procedimentos cosméticos e correção de lipodistrofia de pacientes HIV positivos, submetidos à terapia antirretroviral de alta atividade. O uso de polimetilmetacrilato (PMMA) como substância de preenchimento dérmico tem crescido vertiginosamente, assim como o número de reações adversas decorrentes de seu uso. O PMMA vem sendo utilizado, amplamente como matéria prima na fabricação de diversos dispositivos e produtos médicos desde a década de 40, especialmente em função de sua biocompatibilidade, entretanto, ainda há carência de informações e estudos sobre migração e resposta inflamatória das substâncias comercializadas no Brasil para fins de preenchimento dérmico. Este trabalho teve como objetivo avaliar as características físico-químicas de implantes de PMMA comercializados no Brasil para procedimentos de bioplastia, em três apresentações comerciais do produto com diferentes concentrações, visando delimitar limites aceitáveis para fins de registro destes produtos na Agência Nacional de Vigilância Sanitária (Anvisa), com foco na segurança sanitária. As amostras foram caracterizadas por Difração de Raios X (DRX), Espectroscopia na região do infravermelho com transformada de Fourier (FTIR), Microscopia Eletrônica de Varredura (MEV), Espectroscopia por Energia Dispersiva de Raios X (EDS), análise de Calorimetria Exploratória Diferencial (DSC), caracterização por Microscopia Óptica (MO). A técnica de DRX mostrou comportamento semicristalino do PMMA. Com a técnica de FTIR constatou-se os grupos funcionais presentes nos implantes. Por meio das técnicas de MO e MEV foi possível perceber a não homogeneidade em relação ao tamanho das microesferas de PMMA. Pôde-se concluir com os resultados de DSC que o pico endotérmico aumentou de acordo com as variações de concentração do PMMA. A partir dos dados obtidos neste trabalho constata-se que o consumidor está sujeito a riscos, visto que a irregularidade das superfícies e variações nos tamanhos das microesferas pode ocasionar reações adversas, em função da fagocitose das microesferas com tamanho inferior a 20 μm. O crescente uso das técnicas de preenchimento com implantes de PMMA, bem como sua indicação para uso em demais especialidades da medicina, o coloca como material a ser ainda amplamente estudado nas mais diversas aplicações do produto na área médica.
The cult of beauty is in evidence in Brazil and in the world, leading to increasing techniques and procedures to correct aesthetic defects and minimize the effects of aging. Several dermal fillers with high viscosity or polymer particles in suspension fluids have been used in large scale in cosmetic procedures and lipodystrophy correction of HIV-positive patients undergoing HAART activity. The use of polymethylmethacrylate (PMMA) as dermal filler substance has grown dramatically, and the number of adverse reactions arising from its use. PMMA has been used widely as a raw material in manufacturing various medical devices and products since the 40s, especially due to its biocompatibility, however, there is still a lack of information and studies on migration and inflammatory response of substances marketed in Brazil dermal filler purposes. This study aimed to evaluate the physical and chemical characteristics of PMMA implants sold in Brazil for bioplasty procedures in three commercial presentations of the product with different concentrations, in order to delimit acceptable limits for registration of these products at ANVISA, with focus on security health. The samples were characterized by X-ray Diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Spectroscopy Energy Dispersive X-ray (EDS) analysis of Differential Scanning Calorimetry (DSC), characterized by Optical Microscopy (OM). The XRD technique showed semi-crystalline behavior of PMMA. FTIR technique found the functional groups present on the implants. Through OM and SEM techniques we saw the inhomogeneity relative to the size of the PMMA microspheres. One can conclude from the results of the DSC endothermic peak increased in accordance with changes in the concentration of PMMA. From the data obtained in this study it appears that the consumer is subject to risks as uneven surfaces and variations in size of the microspheres can cause adverse reactions, depending on the phagocytosis of microspheres with size less than 20 microns. The increasing use of technical fill with PMMA implants, as well as indications for use in other specialties of medicine, places it as material to be still widely studied in various product applications in the medical field.

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Martínez, Sanz Marta. "Bacterial cellulose nanowhiskers to enhance the properties of plastics and bioplastics of interest in food packaging." Doctoral thesis, Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/30312.

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El presente trabajo tiene por objetivo estudiar las aplicaciones de los nanocristales o ¿nanowhiskers¿ extraídos mediante hidrólisis ácida de celulosa bacteriana (BCNW) para el desarrollo de materiales poliméricos y biopoliméricos con propiedades mejoradas para su uso en aplicaciones de envasado de alimentos. En primer lugar se estudió y optimizó el proceso de extracción de BCNW. Se desarrolló un procedimiento de extracción con ácido sulfúrico, que permitió obtener nanocristales con elevada relación de aspecto y cristalinidad y al mismo tiempo, un elevado rendimiento de extracción. Este procedimiento comprende una posterior etapa de neutralización que resultó ser necesaria para garantizar la estabilidad térmica de los nanocristales. El siguiente paso consistió en la formulación de materiales nanocompuestos con propiedades mejoradas incorporando BCNW en diferentes matrices plásticas, en concreto copolímeros de etileno-alcohol vinílico (EVOH), ácido poliláctico (PLA) y polihidroxialcanoatos (PHAs). Mediante las técnicas de electroestirado y estirado por soplado se generaron fibras híbridas de EVOH y PLA con BCNW. La incorporación de BCNW en las disoluciones empleadas para producir fibras modificó significativamente sus propiedades (viscosidad, tensión superficial y conductividad) y por tanto, la morfología de las fibras se vio afectada. Además, se generaron fibras con propiedades antimicrobianas mediante la incorporación de aditivos, maximizando el efecto antimicrobiano con la adición de sustancias de carácter hidrofílico. Seguidamente, se produjeron nanocompuestos por mezclado en fundido y se desarrollaron técnicas de pre-incorporación de BCNW para evitar la aglomeración de los mismos no sólo en matrices hidrofílicas como el EVOH, sino también en matrices hidrofóbicas como el PLA. La dispersión óptima de BCNW resultó en una mejora de las propiedades mecánicas y de barrera de los nanocompuestos. También se estudió la modificación de la superficie de los nanocristales mediante copolimerización con poli(glicidil metacrilato) para mejorar la compatibilidad de BCNW con una matriz hidrofóbica como el PLA. Se incluyen además los primeros resultados obtenidos en cuanto a la producción de nanobiocompuestos sintetizados por microorganismos, que consisten en PHAs con diferentes contenidos de hidroxivalerato reforzados con BCNW. Por último, se desarrollaron películas con propiedades de alta barrera basadas en películas de BCNW recubiertas con capas hidrofóbicas. El recubrimiento mediante la deposición de fibras por electrospinning seguido de homogeneización por calentamiento garantizó una buena adhesión entre las diferentes capas, protegiendo así las películas de BCNW del efecto negativo de la humedad.
Martínez Sanz, M. (2013). Bacterial cellulose nanowhiskers to enhance the properties of plastics and bioplastics of interest in food packaging [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/30312
TESIS
Premiado

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Torlén, Anton. "What to Make of Waste : Material Driven Design for Better Palm Oil Practices." Thesis, Högskolan i Gävle, Design och formgivning, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-27323.

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Palm oil production create a number of solid biomass waste products, in particular empty fruit bunches and mesocarp fiber; two cellulosic plant materials that are under-utilized and a source of environmental pollution today. Their fibred structure are interesting from an industrial design perspective as similar waste products from industrialized crops are used to create composite materials. This bachelor thesis is based on an initial research phase of the palm oil industry in Thailand, where literary studies, case-studies and interviews were used to gain understanding of how the palm oil industry in Thailand operates. This laid the foundation to a material driven design process; an exploratory phase where samples of waste products collected during the research phase were tinkered with, to create composite materials of natural fibers and starch-based plastics. The materials created were characterized by their technical properties, and evaluated through a focus group of Thai students to define their experiential characteristics. The insights learned from the evaluation were used to create a demonstrative concept of how the material can be put to future use. The experiential characterization showed that the material have valuable sensorial, performative, emotional and interpretive properties, such as strength, flexibility and translucency, while being perceived as elegant, amusing, strange and natural. This leads to the conclusion that there is possible added value in the waste products that are seen as a nuisance today. Parallel to the material driven design process, samples of empty fruit bunches and mesocarp fiber were used to develop a 3D-printing filament. While only simple test prints have been tried at the time of writing, it provides proof of concept.

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Catani, Linda. "Development and Characterization of Biopolymers." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20761/.

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Development and characterization of biopolymers was done in AIJU’s laboratories. AIJU, Technological Institute for children’s products and leisure is based in Spain. The work has the aim to study qualities and characteristics of bioplastics’ blends, in order to design where improvements can be executed. Biopolymers represent a sector with great development possibilities because they combine high technical potential and eco-sustainability. Nowadays, plastic pollution has becoming increasingly concerning, particularly in terms of management of waste. Bioplastics provide an alternative for the disposal of products, reducing the volume of waste and enhancing the end of life recovery. Despite the growing interest in biopolymers there is some gaps that need be filled. The main objective on this work, is the optimization of bioplastics mechanical properties, to find suitable substitutes, as similar as possible to conventional plastics. Firstly, investigations on processability of biomaterials has been deepen since the project deals with toy manufacturing’s sector. Thus, starting from laboratory scale the work aspires to expand industrially. By working with traditional machines, it was notable that, with some limited modifications, the equipment can perform the same functions. Therefore, operational processes do not emerge as an obstacle to the production chain. Secondly, after processing bio-blends, they are characterized by thermal tests (melt flow index, differential scanning calorimetry-DSC, thermogravimetry-TGA) and mechanical tests (traction and flexural tests, Charpy impact, SHORE D hardness and density). While the compatibility does not show relevant results, mechanical improvements has been visualized with addition of more ductile materials. The study was developed by inclusion of sustainable additive VINNEX® to blends. The thesis has highlighted that integration of more flexible materials provides elasticity without compromising bioplastics’ properties.

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Book chapters on the topic "Bioplastic material"

Das, Sanjit, Hirak Satpathi, S. Roopa, and Saikat Das Gupta. "Sustainability of the Tire Industry: Through a Material Approach." In Applied Biopolymer Technology and Bioplastics, 53–98. Includes bibliographical references and index.: Apple Academic Press, 2020. http://dx.doi.org/10.1201/9781003045458-5.

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Shah, Manzoor Ahmad, Markus Schmid, Ankit Aggarwal, and Ali Abas Wani. "Testing and Quality Assurance of Bioplastics." In Food Packaging Materials, 201–32. Boca Raton : CRC Press, 2017.: CRC Press, 2017. http://dx.doi.org/10.4324/9781315374390-9.

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Raschip, Irina Elena, Nicusor Fifere, and Maria Valentina Dinu. "Polysaccharide-Based Materials as Promising Alternatives to Synthetic-Based Plastics for Food Packaging Applications." In Bioplastics for Sustainable Development, 515–54. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1823-9_19.

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Raschka, Achim, Michael Carus, and Stephan Piotrowski. "Renewable Raw Materials and Feedstock for Bioplastics." In Bio-Based Plastics, 331–45. Chichester, UK: John Wiley & Sons Ltd, 2013. http://dx.doi.org/10.1002/9781118676646.ch13.

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Kumar, M. N. Satheesh, Z. Yaakob, and Siddaramaiah. "Biobased Materials in Food Packaging Applications." In Handbook of Bioplastics and Biocomposites Engineering Applications, 121–59. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118203699.ch5.

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Xu, Helan, and Yiqi Yang. "Bioplastics from Waste Materials and Low-Value Byproducts." In ACS Symposium Series, 113–40. Washington, DC: American Chemical Society, 2012. http://dx.doi.org/10.1021/bk-2012-1114.ch008.

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Ivanov, V., and L. Christopher. "Biorefinery-Derived Bioplastics as Promising Low-Embodied Energy Building Materials." In Nano and Biotech Based Materials for Energy Building Efficiency, 375–89. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-27505-5_13.

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Díez-Pascual, Ana M. "Sustainable Green Nanocomposites from Bacterial Bioplastics for Food-Packaging Applications." In Handbook of Composites from Renewable Materials, 229–57. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119441632.ch156.

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Gaugler, Marc, Warren Grigsby, D. Harper, and T. Rials. "Chemical Imaging of the Spatial Distribution and Interactions of Tannin Dispersal in Bioplastic Systems." In Advanced Materials and Processing IV, 173–76. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-466-9.173.

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Song, Jiajia. "Exploration of Bio-Based Materials and Sustainable Product Design: A Case Study of BioPlastic Preparation and Design." In Advances in Creativity, Innovation, Entrepreneurship and Communication of Design, 185–92. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-51626-0_22.

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Conference papers on the topic "Bioplastic material"

Krivoshchekov, E. P., G. S. Alyapyshev, E. B. Elshin, and V. E. Romanov. "Application of bioplastic , cellular and biological material for the healing of the wounds." In Scientific achievements of the third millennium. LJournal, 2019. http://dx.doi.org/10.18411/scienceconf-05-2019-23.

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"Evaluation of Coconut (Cocos nucifera) Husk Fibre as a Potential Reinforcing Material for Bioplastic Production." In By-Products of Palm Trees and Their Applications. Materials Research Forum LLC, 2019. http://dx.doi.org/10.21741/9781644900178-14.

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HEGDE, SWATI, ELIZABETH DELL, CHRISTOPHER LEWIS, THOMAS A. TRABOLD, and CARLOS A. DIAZ. "Anaerobic Biodegradation of Bioplastic Packaging Materials." In The 21st IAPRI World Conference on Packaging. Lancaster, PA: DEStech Publications, Inc., 2018. http://dx.doi.org/10.12783/iapri2018/24453.

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Husaini, A., M. Zaman, S. Chodijah, Hilwatullisan, and Ibrahim. "Oil Palm Empty Bunches as an Alternative Raw Material for Making Bioplastics." In 4th Forum in Research, Science, and Technology (FIRST-T1-T2-2020). Paris, France: Atlantis Press, 2021. http://dx.doi.org/10.2991/ahe.k.210205.019.

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Singan, Grace, and Liew Kang Chiang. "The relationship between absorbency and density of bioplastic film made from hydrolyzed starch." In ADVANCED MATERIALS FOR SUSTAINABILITY AND GROWTH: Proceedings of the 3rd Advanced Materials Conference 2016 (3rd AMC 2016). Author(s), 2017. http://dx.doi.org/10.1063/1.5010575.

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Ishak, N. S., Chin Sheng Thng, and K. I. Ku Marsilla. "The effect of crosslinking agent on protein-based bioplastic from fish waste." In 3RD INTERNATIONAL POSTGRADUATE CONFERENCE ON MATERIALS, MINERALS & POLYMER (MAMIP) 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0016189.

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Abdulkadir, H. K., S. A. Abdul Shukor, R. Hamzah, N. Z. Noriman, Omar S. Dahham, Saad S. Dahham, and N. A. Faris. "Preparation coated of urea beads from banana peel bioplastic and epoxidized natural rubber 50." In 2ND INTERNATIONAL CONFERENCE ON MATERIALS ENGINEERING & SCIENCE (IConMEAS 2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0000418.

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Shukor, S. A. Abdul, R. Hamzah, N. Z. Noriman, Omar S. Dahham, N. A. Faris, Saad S. Dahham, and Haliza Jaya. "UV-visible performance of urea beads coated with banana peels bioplastic and epoxidized natural rubber." In 2ND INTERNATIONAL CONFERENCE ON MATERIALS ENGINEERING & SCIENCE (IConMEAS 2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0000417.

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Abidin, Nur Diyana Zainol, Nur Syahirah Azhar, Muhammad Naiman Sarip, Huzaifah A. Hamid, and Nor Atikah Husna Ahmad Nasir. "Production of bioplastic from cassava peel with different concentrations of glycerol and CaCO3 as filler." In 4TH INTERNATIONAL SCIENCES, TECHNOLOGY AND ENGINEERING CONFERENCE (ISTEC) 2020: Exploring Materials for the Future. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0043482.

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Academic literature on the topic 'Bioplastic material'

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Journal articles on the topic "Bioplastic material"

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