{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T10:22:51Z","timestamp":1773656571353,"version":"3.50.1"},"reference-count":36,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2024,11,7]],"date-time":"2024-11-07T00:00:00Z","timestamp":1730937600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Research Unit of Fiber Materials and Environmental Technologies (FibEnTech-UBI)","award":["UIDB\/00195\/2020"],"award-info":[{"award-number":["UIDB\/00195\/2020"]}]},{"name":"Research Unit of Fiber Materials and Environmental Technologies (FibEnTech-UBI)","award":["UIDB\/00151\/2020"],"award-info":[{"award-number":["UIDB\/00151\/2020"]}]},{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia, IP\/MCTES through national funds (PIDDAC)","award":["UIDB\/00195\/2020"],"award-info":[{"award-number":["UIDB\/00195\/2020"]}]},{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia, IP\/MCTES through national funds (PIDDAC)","award":["UIDB\/00151\/2020"],"award-info":[{"award-number":["UIDB\/00151\/2020"]}]},{"name":"Center for Mechanical and Aerospace Science and Technologies (C-MAST-UBI)","award":["UIDB\/00195\/2020"],"award-info":[{"award-number":["UIDB\/00195\/2020"]}]},{"name":"Center for Mechanical and Aerospace Science and Technologies (C-MAST-UBI)","award":["UIDB\/00151\/2020"],"award-info":[{"award-number":["UIDB\/00151\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>Environmental awareness has led industries and consumers to replace products derived from oil resources with products derived from natural sources. In the case of the composite materials industry, the replacement of synthetic fibres with natural fibres has increased in recent years. To study the influence that different types of natural fibres and different textile manufacturing techniques have on the mechanical properties of composites, bio-based epoxy matrix composites reinforced with different natural animal fibres were produced, some reinforced with sheep\u2019s wool and others with dog wool, which were later subjected to bending and tensile tests. From the authors\u2019 knowledge, there are few studies of composites produced with animal fibres, and even fewer with dog hair. The textile structures used as reinforcement were created using crochet, knitting, and weaving techniques. Prior to the composites production, the fibres were characterized by X-ray Diffraction (X-RD), and the yarns produced from these fibres were subjected to tensile tests. The results obtained suggest that the number of yarns and the diameter of the needles used during the production of the reinforcement have a significant impact on the mechanical properties of the composites. The green epoxy resin composites reinforced with sheep\u2019s wool exhibit higher values of flexural strength, tensile strength, and Young\u2019s modulus than those reinforced with dog wool, with average increases of 36.97%, 45.16%, and 72.99%, respectively. It was also possible to verify that the composites reinforced with woven fabrics and crocheted fabrics exhibit the highest values of tensile strength, flexural strength, and Young\u2019s modulus. Additionally, the composites reinforced with woven fabrics exhibit the highest values of deformation at first failure\/break and toughness.<\/jats:p>","DOI":"10.3390\/polym16223115","type":"journal-article","created":{"date-parts":[[2024,11,7]],"date-time":"2024-11-07T04:22:56Z","timestamp":1730953376000},"page":"3115","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Mechanical Behaviour of Green Epoxy Composites Reinforced with Sheep and Dog Wool from Serra Da Estrela"],"prefix":"10.3390","volume":"16","author":[{"given":"Cl\u00e1udia","family":"Antunes","sequence":"first","affiliation":[{"name":"Fiber Materials and Environmental Technologies Research Unit (FibEnTech-UBI), University of Beira Interior, Rua Marqu\u00eas D\u2019\u00c1vila e Bolama, 6201-001 Covilh\u00e3, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1583-3462","authenticated-orcid":false,"given":"Ana Paula","family":"Costa","sequence":"additional","affiliation":[{"name":"Fiber Materials and Environmental Technologies Research Unit (FibEnTech-UBI), University of Beira Interior, Rua Marqu\u00eas D\u2019\u00c1vila e Bolama, 6201-001 Covilh\u00e3, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6165-8899","authenticated-orcid":false,"given":"Andr\u00e9 Costa","family":"Vieira","sequence":"additional","affiliation":[{"name":"Center for Mechanical and Aerospace Science and Technologies (C-MAST-UBI), University of Beira Interior, Rua Marqu\u00eas D\u2019\u00c1vila e Bolama, 6201-001 Covilh\u00e3, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6098-9581","authenticated-orcid":false,"given":"Joana Costa","family":"Vieira","sequence":"additional","affiliation":[{"name":"Fiber Materials and Environmental Technologies Research Unit (FibEnTech-UBI), University of Beira Interior, Rua Marqu\u00eas D\u2019\u00c1vila e Bolama, 6201-001 Covilh\u00e3, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,11,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Kamarudin, S.H., Mohd Basri, M.S., Rayung, M., Abu, F., Ahmad, S., Norizan, M.N., Osman, S., Sarifuddin, N., Desa, M.S.Z.M., and Abdullah, U.H. 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