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RECYCLING OF END-OF-LIFE TEXTILE MATERIALS BY FABRICATION OF GREEN COMPOSITES
Högskolan i Borås, Akademin för textil, teknik och ekonomi. (Polymer Group)
Högskolan i Borås, Akademin för textil, teknik och ekonomi. (Polymer Group)
Högskolan i Borås, Akademin för textil, teknik och ekonomi. (Polymer Group)ORCID-id: 0000-0002-6596-8069
2017 (Engelska)Konferensbidrag, Poster (med eller utan abstract) (Refereegranskat)
Hållbar utveckling
Innehållet faller inom området hållbar samhällsutveckling
Abstract [en]

Material recycling requires rather pure and non-contaminated waste streams, which can be converted by technical processes into new materials and products by economically and technically feasible techniques. It is also required that there is a secondary market for these recycled materials, and preferably in use areas with high economic value. End-of-life textiles cannot yet be recycled as a raw material in a feasible way. Structural composites are an excellent use area for recycled materials, as they are durable and light-weight products, with excellent mechanical properties.

In this study, denim woven fabrics as end-of-life textiles were employed to improve the mechanical and thermal properties of high bio-content epoxy resin. Entropy Resin, manufacturer of commercial bio-based epoxy resin, claimed that bio-based content of system is 37 % and the resin is derived from by-products of industrial processes including wood pulp and biofuel. Bioepoxy was used as bio resins in composite manufacturing, and a conventional polyester resin served as a reference material. To create a wide scope of possibilities the composites were manufacturing using the four techniques: (1) vacuum infusion (VI), (2) resin transfer moulding (RTM), and (3) hand lay-up (HND). To determine the suitability for structural applications the biocomposites were tested for their mechanical and thermal properties. Mechanical tests for tensile, flexural strength and impact behaviour were conducted on composites. Moreover, viscoelastic properties of the composites were evaluated through dynamic mechanical analysis (DMA). Fabricated composites were characterised regarding porosity, water absorption and analysed through microscopic images of the composite cross section. Different manufacturing technique showed varying results. For bioepoxy both HND and VI give superior mechanical properties over RTM, as the latter gives a higher void content, and lower tensile and flexural properties.

Ort, förlag, år, upplaga, sidor
2017.
Nyckelord [en]
Denim fabrics, Composites, Bioepoxy, RTM, Mechanical properties
Nationell ämneskategori
Kompositmaterial och -teknik
Forskningsämne
Resursåtervinning
Identifikatorer
URN: urn:nbn:se:hb:diva-12762Scopus ID: 2-s2.0-85053164700OAI: oai:DiVA.org:hb-12762DiVA, id: diva2:1145504
Konferens
21st International Conference on Composite Materials, Xi’an, August 20-25, 2017
Tillgänglig från: 2017-09-29 Skapad: 2017-09-29 Senast uppdaterad: 2018-12-01Bibliografiskt granskad

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Baghaei, BehnazSkrifvars, Mikael

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