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RECYCLING OF END-OF-LIFE TEXTILE MATERIALS BY FABRICATION OF GREEN COMPOSITES
University of Borås, Faculty of Textiles, Engineering and Business. (Polymer Group)
University of Borås, Faculty of Textiles, Engineering and Business. (Polymer Group)
University of Borås, Faculty of Textiles, Engineering and Business. (Polymer Group)ORCID iD: 0000-0002-6596-8069
2017 (English)Conference paper, Poster (with or without abstract) (Refereed)
Sustainable development
The content falls within the scope of Sustainable Development
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.

Place, publisher, year, edition, pages
2017.
Keyword [en]
Denim fabrics, Composites, Bioepoxy, RTM, Mechanical properties
National Category
Composite Science and Engineering
Research subject
Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-12762OAI: oai:DiVA.org:hb-12762DiVA: diva2:1145504
Conference
21st International Conference on Composite Materials, Xi’an, August 20-25, 2017
Available from: 2017-09-29 Created: 2017-09-29 Last updated: 2017-10-03Bibliographically approved

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Baghaei, BehnazSkrifvars, Mikael
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CiteExportLink to record
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Citation style
  • apa
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