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The effect of pre-softened wood chips on wood fibre aspect ratio and mechanical properties of wood-polymer composites
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
Luleå University of Technology.
University of Oulu.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0003-4762-2854
2011 (English)In: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 42, no 12, p. 2110-2116Article in journal (Refereed) Published
Abstract [en]

The objective of this work was to study the effect of chemical pre-treatment and moisture content of wood chips on the wood particle aspect ratio after compounding in a twin-screw extruder and on the mechanical properties of wood-polymer composites (WPC). Composites with 50 wt% wood content were manufactured using pre-treated and untreated wood chips. The effect of wood moisture content on composite properties was studied by using dried and undried wood chips. The mechanical properties and fracture surfaces of the composites as well as the microstructure and aspect ratio of wood particles after compounding were studied. The highest wood particle aspect ratio after extrusion was achieved by using pre-treated, undried wood chips as raw material. The chemical pre-treatment was found to enhance the defibration of wood chips as well as the mechanical properties of the composites.

Place, publisher, year, edition, pages
2011. Vol. 42, no 12, p. 2110-2116
National Category
Bio Materials
Research subject
Wood and Bionanocomposites
Identifiers
URN: urn:nbn:se:ltu:diva-7199DOI: 10.1016/j.compositesa.2011.09.021Local ID: 58633539-b476-4160-9ba2-a6973f3545e8OAI: oai:DiVA.org:ltu-7199DiVA: diva2:980088
Note
Validerad; 2011; 20110525 (krioks)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • Other locale
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Output format
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  • asciidoc
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