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Characterisation of polylactic acid biocomposites made from prepregs composed of woven polylactic acid/hemp–Lyocell hybrid yarn fabrics
University of Borås, Faculty of Textiles, Engineering and Business. (Polymer group)
University of Borås, Faculty of Textiles, Engineering and Business. (Polymer group)
2016 (English)In: Composites Part A: Applied Science and Manufacturing, ISSN 1359-835X, Vol. 81, 139-144 p.Article in journal (Refereed) Published
Abstract [en]

This paper describes the mechanical properties and water absorption characteristics for biocomposites made from woven PLA/hemp/Lyocell prepregs. The aim was to improve the properties with the addition of Lyocell fibre into a hybrid yarn. Well-aligned hybrid yarns composed of hemp/PLA, hemp-Lyocell/PLA, respective, Lyocell/PLA were made by wrap spinning. Unidirectional satin fabrics were made by weaving with PLA (warp) and the hybrid yarns (weft). Uniaxial composites were fabricated with 30 fibre mass% using compression moulding. The composites were investigated for tensile, flexural and impact properties. Combining hemp with Lyocell in a PLA matrix improves the mechanical properties, compared to hemp/PLA composites. The composite made from the satin Lyocell/PLA fabric gave the best mechanical properties. The type of fibre reinforcement compositions did not significantly affect the water absorption of the biocomposites. Scanning electron microscopy showed that fibre pull-outs appear more often in hemp/PLA composites than in composites also including Lyocell fibre. © 2015 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2016. Vol. 81, 139-144 p.
Keyword [en]
Fabrics/textiles, Mechanical properties, Compression moulding, Weaving
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hb:diva-8710DOI: 10.1016/j.compositesa.2015.10.042ISI: 000369214600015Scopus ID: 84947810939OAI: oai:DiVA.org:hb-8710DiVA: diva2:898812
Available from: 2016-01-29 Created: 2016-01-29 Last updated: 2017-01-24Bibliographically approved

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Baghaei, BehnazSkrifvars, Mikael
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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
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  • nn-NB
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Output format
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  • asciidoc
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