Academic literature on the topic 'Sheep wool fibers'

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Journal articles on the topic "Sheep wool fibers"

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Arbelaiz, Aitor, Telmo Yurramendi, Ander Larruscain, Ane Arrizabalaga, Arantxa Eceiza, and Cristina Peña-Rodriguez. "Preparation and Characterization of Novel Poly(Lactic Acid) Composites Reinforced with “Latxa” Sheep Wool Fibers: The Effect of Peroxide Surface Treatments and Fiber Content." Materials 17, no. 19 (2024): 4912. http://dx.doi.org/10.3390/ma17194912.

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“Latxa” sheep wool is rough, and it is not used in the textile industry because the fiber diameter is high compared with other wool fibers. Nowadays, this wool is considered as disposal and, with the aim to give it value, new uses must be explored. In the current work, the “Latxa” sheep wool fiber was evaluated as poly(lactic acid) (PLA) polymer reinforcement. With the objective to optimize fiber/matrix adhesion, fibers were surface modified with peroxide. Oxidation treatment with peroxide led to chemical modifications of the wool fibers that improved the fiber/PLA adhesion, but the strength v
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Sitotaw, Dereje Berihun, Addisu Ferede Tesema, and Adane Haile Woldemariam. "Diameter and strength of Ethiopian pure and cross-breed sheep wool fibers." Journal of Engineered Fibers and Fabrics 16 (January 2021): 155892502110469. http://dx.doi.org/10.1177/15589250211046931.

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The wool fibers fineness and strength have a remarkable role to determine the quality of yarn and the subsequent fabrics. The fineness property of the wool fibers is a crucially important fiber property for grading, classifying, selecting for particular applications such as for suit, blanket, shirt, carpet, and so on. The fineness and strength properties of four indigenous (Menz, Wollo, Farta, Tikur), three exotic (Awasi, Dorper, Corrediale), and four cross-breed (50% Dorper, 50% Awasi, 75% Awsi, Washera/Awasi) sheep wool fibers from the four main body parts (sides, neck, back, and belly) at s
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Starkova, Olesja, Alisa Sabalina, Vanda Voikiva, and Agnese Osite. "Environmental Effects on Strength and Failure Strain Distributions of Sheep Wool Fibers." Polymers 14, no. 13 (2022): 2651. http://dx.doi.org/10.3390/polym14132651.

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Sheep wool is an eco-friendly, renewable, and totally recyclable material increasingly used in textiles, filters, insulation, and building materials. Recently, wool fibers have become good alternatives for reinforcement of polymer composites and filaments for 3D printing. Wool fibers are susceptible to environmental degradation that could shorten their lifetime and limit applications. This study reports on the mechanical properties of sheep wool fibers under the impact of humid air and UV irradiation. The results of single fiber tensile tests showed a noticeable gauge length effect on the fibe
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Szatkowski, Piotr. "The Influence of Various Chemical Modifications of Sheep Wool Fibers on the Long-Term Mechanical Properties of Sheep Wool/PLA Biocomposites." Materials 18, no. 13 (2025): 3056. https://doi.org/10.3390/ma18133056.

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Sheep wool is a natural fiber from various sheep breeds, mainly used in clothing for its insulation properties. It makes up a small share of global fiber production, which is declining as synthetic fibers replace wool and meat farming becomes more profitable. Wool from slaughter sheep, often unsuitable for textiles, is treated as biodegradable waste. The aim of the study was to develop a fully biodegradable composite of natural origin from a polylactide (PLA) matrix reinforced with sheep wool and to select the optimal modifications (chemical) of sheep wool fibers to obtain modified properties,
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Galaska, Mary L., Larry D. Sqrow, J. Douglas Wolf, and Alexander B. Morgan. "Flammability Characteristics of Animal Fibers: Single Breed Wools, Alpaca/Wool, and Llama/Wool Blends." Fibers 7, no. 1 (2019): 3. http://dx.doi.org/10.3390/fib7010003.

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Animal protein-based fibers used in textiles often are assumed to have uniform properties independent of source, and yet are different when considering texture, structure, and color. Differences between fibers from animal species have been studied in regard to general flammability behavior, but differences between fibers from breeds of the same species have not been studied. Fibers from two sheep breeds (Jacob, CVM/Romeldale) and two camelids (Alpaca, Llama) were studied for flammability effects on fabrics hand knit from yarns made from these different fibers. A total of five different yarns w
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King, Marcus J. "Impact Cutting of Wool." Textile Research Journal 67, no. 8 (1997): 580–84. http://dx.doi.org/10.1177/004051759706700805.

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Wool fibers are “impact cut” with a rotating blade made from piano wire at various positions along the fibers. The force transmitted to the base of the fibers decreases markedly when a critical velocity (from 140 to 270 m/s) is exceeded, with corresponding improvement in the cut surface. The velocity of the wire required for impact cutting varys according to the length of the fiber above and below the impact position; fibers with long lengths above the wire impact position are impact cut at lower wire velocities than shorter fibers. Fibers impact cut above the critical wire velocity are cut by
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Parlato, Monica C. M., and Simona M. C. Porto. "Organized Framework of Main Possible Applications of Sheep Wool Fibers in Building Components." Sustainability 12, no. 3 (2020): 761. http://dx.doi.org/10.3390/su12030761.

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Greasy sheep wool is currently considered a special waste for its high bacterial load, with expensive disposal costs for sheep breeders. For this reason, wool is often burned or buried, with serious consequences for the environment. On the other hand, sheep wool is well regarded as one of the most performative insulating natural fibers due to its thermo-hygrometric and acoustic properties. In the building sector, sheep wool meets the requirements of green building components because it is an eco-friendly material, there is a surplus of it, it is annually renewable, and totally recyclable. If u
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Yao, Mu, Mei Yu Chen, Run Jun Sun, Zhao Huan Zhang, Cheng Kun Liu, and Li Qiao Li. "Resource of Wool Fibers and Development Trend of Wool Product." Key Engineering Materials 671 (November 2015): 483–89. http://dx.doi.org/10.4028/www.scientific.net/kem.671.483.

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A wide variety of new wool fiber materials, such as super-fine sheep wool with the average diameter of about 11 μm, rabbit wool of long-hair rabbit, Wusuli raccoon dog wool, and vicuna wool, were developed except for sheep wool and cashmere in the wool textile industry. Tibetan antelope wool was not allowed to make a processing and trade, but it may have a development in the future. Meanwhile, other natural and chemical fibers were added as the raw materials in wool textile production because of their new functional requirements including antistativity, antibacterial, deodorant, improvement of
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Vasina, Martin, Premysl Straznicky, Pavel Hrbacek, Sona Rusnakova, Ondrej Bosak, and Marian Kubliha. "Investigation of Physical Properties of Polymer Composites Filled with Sheep Wool." Polymers 16, no. 5 (2024): 690. http://dx.doi.org/10.3390/polym16050690.

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Sheep farmers are currently facing an oversupply of wool and a lack of willing buyers. Due to low prices, sheep wool is often either dumped, burned, or sent to landfills, which are unsustainable and environmentally unfriendly practices. One potential solution is the utilization of sheep wool fibers in polymer composites. This paper focuses on the study of mechanical vibration damping properties, sound absorption, light transmission, electrical conductivity of epoxy (EP), polyurethane (PU), and polyester (PES) resins, each filled with three different concentrations of sheep wool (i.e., 0%, 3%,
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Tkachuk, V. M., P. V. Stapay, N. Z. ,. Ohorodnyk, and N. R. Motko. "Internal lipids and their fatty acids composition in a sheep wool fiber under biodestruction with fleece microorganisms." Ukrainian Biochemical Journal 96, no. 3 (2024): 97–107. http://dx.doi.org/10.15407/ubj96.03.097.

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Microbiological destruction of fibers is a common damage to sheep’s wool. Considering the defining role of internal lipids in the formation of wool fibers surface the aim of the work was to study the structure and lipid composition of the normal and damaged wool. The research was carried out on ewes of the Askanian fine-wool breed. The content of microorganisms was estimated after sowing on dense nutrient environments. Wool fibers surface was studied by scanning electron microscopy, the content of internal lipids by thin layer chromatography after preliminary alkaline hydrolysis of the fiber,
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Dissertations / Theses on the topic "Sheep wool fibers"

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Asli, Mounir. "Etude des transferts couplés de chaleur et de masse dans les matériaux bio-sourcés : approches numérique et expérimentale." Thesis, Artois, 2017. http://www.theses.fr/2017ARTO0210/document.

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Le travail développé dans cette thèse a pour but d’étudier le comportement hygrothermique de matériaux isolants bio-sourcés, et plus particulièrement les fibres de bois, le béton de chanvre, la laine de lin, la laine de mouton, le métisse® et les anas de lin. Ces matériaux, par essence naturels, présentent des spécificités liées à leur origine (animale ou végétale) et à leur structure (fibres, paille, matrice solide…). Leur porosité, très élevée, les rend réactifs aux variations d’humidité relative ambiante, ce qui peut impacter leurs performances thermiques et leur durabilité (comme pour tous
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Fleet, M. R. (Malcolm R. ). "The inheritance and control of isolated pigmented wool fibres in merino sheep." 1997. http://web4.library.adelaide.edu.au/theses/09A/09af594.pdf.

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Copies of author's previously published works inserted. Includes bibliographical references (leaves 222-258). Researches the occurence and inheritance of isolated melanin pigmented wool fibres and macroscopic pigmentation in Merino sheep. The mode of inheritance of key indicators (pigmented leg fibres and pigmented birthcoat halo-hair) of isolated pigmented wool fibres is investigated and confirms an association between isolated pigmented fibres in hogget Merino fleeces and the presence and degree of types of remnant macroscopic fibre pigmentation. These associations could be exploited to impr
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Books on the topic "Sheep wool fibers"

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L, Kyomo M., and Southern African Centre for Cooperation in Agricultural Research., eds. Improving fiber quality and yield from small ruminants in the SADCC region: Report from phase I : sector survey and recommendation. Winrock International Institute for Agricultural Development, 1989.

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Garman, Janet. Good Living Guide to Keeping Sheep and Other Fiber Animals: Housing, Feeding, Shearing, Spinning, Dyeing, and More. Good Books, 2019.

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Agency, Ireland Environmental Protection. Integrated pollution control licensing: BATNEEC guidance note for wood treatment and preservation. Environmental Protection Agency, 1997.

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Agency, Ireland Environmental Protection. Integrated pollution control licensing: BATNEEC guidance note for the manufacture of synthetic fibres. Environmental Protection Agency, 1997.

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Agency, Ireland Environmental Protection. Integrated pollution control licensing: BATNEEC guidance note for boilermaking and manufacture of sheet metal containers. Environmental Protection Agency, 1997.

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Agency, Ireland Environmental Protection. Integrated pollution control licensing: BATNEEC guidance note for the pig production sector. Environmental Protection Agency, 1996.

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Agency, Ireland Environmental Protection. Integrated pollution control licensing: BATNEEC guidance note for the manufacture or use of coating materials. Environmental Protection Agency, 1997.

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Agency, Ireland Environmental Protection. Integrated pollution control licensing. Environmental Protection Agency, 1995.

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Agency, Ireland Environmental Protection. Integrated pollution control licensing: BATNEEC guidance note for the manufacture of integrated circuits and printed circuit boards. Environmental Protection Agency, 1996.

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Agency, Ireland Environmental Protection. Integrated pollution control licensing: BATNEEC guidance note for the extraction of minerals. Environmental Protection Agency, 1997.

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Book chapters on the topic "Sheep wool fibers"

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Parlato, Monica C. M., Giusi Midolo, Simona M. C. Porto, and Francesca Valenti. "Physical and Mechanical Characterization of a Low-Quality Sheep Wool Fiber." In AIIA 2022: Biosystems Engineering Towards the Green Deal. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-30329-6_122.

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Omagano Itenge, Theopoline. "Application of PCR Technique to Detect Polymorphism of the KRTAP1.1 Gene in Three Sheep Breeds - A Review." In Analytical Chemistry - Advancement, Perspectives and Applications. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96941.

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The quality of wool and pelt products depends on the quality of the wool and pelt grown on farm. Genes coding for the proteins involved in the structural components of wool fibre; keratin intermediate filaments (KRTs) and keratin keratin-associated proteins (KAPs) have been extensively researched. The KAPs form a matrix in which the KRTs are embedded. In sheep, KRTAP1.1 (previously B2A) is one of the four genes encoding proteins that make up the KAP1.n family. The ovine KRTAP1.1 gene is clustered with the KRTAP1.3 and KRTAP1.4 genes on chromosome 11. In this chapter, the Polymerase Chain React
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Ekwemalor, Kingsley, Ikenna Enenya, Sarah Adjei-Fremah, Emmanuel Asiamah, Paula Faulkner, and Osei-Agyeman Yeboah. "Alternative to Antibiotics Used in Sheep Production." In Agricultural Sciences. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.114992.

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Sheep play a significant role in agriculture, serving as a primary source of meat, milk, and wool fiber. They constitute a unique class of animals distinguished by their specialized digestive organs. As our population increases, there is a high demand for sheep meat and products from developed and developing countries. In livestock production, disease poses a significant challenge, and the use of antimicrobial and antiparasitic drugs facilitates the control of infections, thereby improving animal welfare, health, and productivity. The use of antimicrobials in sheep farming has become prevalent
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Morais C. and Barragão V. "Improvement design in Portuguese wool lifecycle: ecological yarn collection." In Research in Design Series. IOS Press, 2017. https://doi.org/10.3233/978-1-61499-820-4-271.

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Wool is a light, comfortable, and durable fibre that forms a protective covering against both heat and cold. In Portugal, raising sheep, wool collection and production of yarn has been a domestic craft work for centuries, concentrated mainly in the East and South of the country, particularly in Serra da Estrela and Alentejo. The sorting and storage of wool is done by companies associated to “Merino” wool producers, however, this type of wool is only a small percentage of the country's total production. The country has many other varieties of wool but these may end up burned
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Manivannan, J., S. Rajesh, K. Mayandi, I. Siva, I. Sankar, and Kestur Gundappa Satyanarayana. "Abrasive water jet cutting and its optimization model for machining the sheep wool/polyester composites." In Wool Fiber Reinforced Polymer Composites. Elsevier, 2022. http://dx.doi.org/10.1016/b978-0-12-824056-4.00014-5.

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Bharath, K. N., S. G. Dileepkumar, G. B. Manjunatha, S. J. Amith Kumar, S. Indran, and B. S. Binoj. "Optimization of parametric study on drilling characteristics of sheep wool reinforced composites." In Advances in Bio-Based Fiber. Elsevier, 2022. http://dx.doi.org/10.1016/b978-0-12-824543-9.00018-9.

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Bharath, K. N., G. B. Manjunatha, and K. Santhosh. "Failure analysis and the optimal toughness design of sheep–wool reinforced epoxy composites." In Failure Analysis in Biocomposites, Fibre-Reinforced Composites and Hybrid Composites. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-08-102293-1.00005-x.

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Conference papers on the topic "Sheep wool fibers"

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Ahmad, Rashid, and Majid Ali. "A Review on Introducing Fibers in Concrete for Blocks, Pavers and Kerbstone." In Technology Enabled Civil Infrastructure Engineering & Management Conference. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-pq8hma.

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At present, concrete blocks serve as the primary construction material in civil engineering due to their convenient material selection and impressive compressive strength. However, their limitations in terms of low tensile strength, poor toughness, and susceptibility to cracking hinder their progress. To enhance the flexibility and resilience of concrete, incorporating fibers is a viable method to develop a composite material. Concrete blocks, pavers, and kerbstones are widely using in construction applications. However, this is susceptible to cracking, especially under heavy loads or in harsh
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Ghimiș, Simona-Bianca, Andreea-Luiza Mîrț, Alexandru Vlaicu, Emilian Zaharia, Mariana Mihaela Bomboş, and Gabriel Vasilievici. "Impregnated Sheep Wool Fibers with an Antimicrobial Effect." In NeXT-Chem 2023. MDPI, 2023. http://dx.doi.org/10.3390/chemproc2023013001.

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Opris, Mircea Constantin, and Dana Corina Deselnicu. "Wool processing outcomes and opportunities." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.iv.16.

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This paper provides an analysis of what happens with the sheep wool in Romania. Unfortunately, I found out that most of this “gold mine” is going to export, being processed, and then imported back for a much bigger price. The processing of sheep wool is not a very complicated process. There are processing lines that can take the sheep wool and by the end of the line, you get lanolin and fibers. Besides the very high margin that can be obtained from this type of business, motivation came from the idea of using our country resources at the maximum and try to have some products made in Romania. T
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Calatan, Gabriela, Carmen Dico, Calin G. R. Mircea, and Tudor Toader. "THE INTEGRATION OF VERNACULAR CONSTRUCTION MATERIALS IN THE CONCEPT OF SUSTAINABLE DEVELOPMENT." In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/6.1/s26.26.

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Lately, there is a growing need for humanity to get closer to nature and to a way of life so that the negative impact on it to be as small as possible. One cannot talk about durable development without taking into account the sustainability criterion which is essential in all areas of activity. Traditional constructions made of masonry elements from unburned clay or other vernacular materials, using sheep wool mattresses for thermal insulation, successfully meet the conditions imposed by this criterion. Constructions made of natural materials, ensure the responsible use of non-renewable natura
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Parlato, Monica C. M., Simona M. C. Porto, and Francesca Valenti. "GIS based-model to locate and quantify agricultural wastes for sustainable building components: plastic films and sheep wool fibers." In 2021 IEEE International Workshop on Metrology for Agriculture and Forestry (MetroAgriFor). IEEE, 2021. http://dx.doi.org/10.1109/metroagrifor52389.2021.9628855.

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"Influence of Cement Type and Curing Conditions on the Flexural Strength and Microstructure of Mortars Reinforced with Sheep Wool Fibers." In SP-355: Recent Advances in Concrete Technology and Sustainability Issues. American Concrete Institute, 2022. http://dx.doi.org/10.14359/51736034.

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Hartman, Richard R. "Mechanical Treatment of Pulp Fibers for Paper Property Development." In Papermaking Raw Materials, edited by V. Punton. Fundamental Research Committee (FRC), Manchester, 1985. http://dx.doi.org/10.15376/frc.1985.1.413.

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Some fundamental aspects of mechanical actions on wood pulp fibers have been studied. Specifically, the objectives of the study were to produce internal fibrillation in pulp fibers, evaluate its influence on paper properties, and establish its importance relative to external fibrillation and fines in terms of paper property development. An apparatus was constructed that subjected pulp fibers (in the form of a wet handsheet) to repeated compressive loading cycles. Pulp was also treated in an experimental apparatus designed to promote external fibrillation, and in a Valley beater. Several fiber
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Ashrafi, Mahdi, Masoud Olia, Ashkan Vaziri, and Hamid Nayeb-Hashemi. "Optimizing the Mechanical Properties of Wood Plastic Composites Using Fiber-Glass." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64043.

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Wood plastic composites (WPC) are widely used in the industry due to its durability, low cost, and anti-moisture properties in comparison with the natural wood. Recently, WPC are also being considered in musical instrument industry. In this research, we have produced flout shaped WPC samples using African black wood powder and Phenolic resin in a hot compression molding set-up. Initial WPC composites were produced by systematically changing the wood volume fraction. The results showed cracks developed in composites with more than 70% wood. This was related to formation of gas in the system dur
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Rutter, Georgia, Niki Hazelton, Marina Richena, Fátima Jorge, Mihnea Bostina, and Duane Harland. "Investigating the internal structure of sheep wool hair fibre using new microscopic techniques." In 13th Asia Pacific Microscopy Congress 2025. ScienceOpen, 2025. https://doi.org/10.14293/apmc13-2025-0320.

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Woodhouse, Jim. "Elastic Properties of Sheet and Materials from Vibration Testing." In Advances in Pulp and Paper Research, Cambridge 2013, edited by S. J. I’Anson. Fundamental Research Committee (FRC), Manchester, 2013. http://dx.doi.org/10.15376/frc.2013.3.995.

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Many materials, including paper products, come in sheet form and exhibit orthotropic symmetry. Information about the elastic stiffnesses of such materials can often be obtained quickly and accurately using a measurement method based on the vibration modes and natural frequencies of rectangular panels. The method is outlined and illustrated, and some case studies discussed in which the method is applied to fibre-reinforced composite materials and to the selection of wood for musical instruments.
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