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Processing of wood chip-plastic composites: effect on wood particle size, microstructure and mechanical properties
University of Oulu.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0003-4762-2854
2011 (English)In: Plastics, rubber and composites, ISSN 1465-8011, E-ISSN 1743-2898, Vol. 40, no 2, p. 49-56Article in journal (Refereed) Published
Abstract [en]

Wood chips were used as raw material in extrusion of wood-plastic composites. Wood-plastic composites with similar to 50 wt-% wood content were manufactured by using two different compounding methods. Dried and undried wood chips were used to investigate the effect of wood moisture content on the wood particle size and whether the drying process could be carried out in the same step. Wood particle properties were measured using optical fibre analysis. Microscopical methods were used to examine the microstructure of wood particles. Furthermore, the prepared composites' mechanical properties were studied. The particle size of wood chips was significantly reduced during extrusion in both processing methods. The undried wood chips had higher aspect ratios in comparison with the dried wood chips after extrusion. Despite the higher aspect ratio, the mechanical properties of composites manufactured with undried wood chips were not better than the properties of composites with dried wood chips

Place, publisher, year, edition, pages
2011. Vol. 40, no 2, p. 49-56
National Category
Bio Materials
Research subject
Wood and Bionanocomposites
Identifiers
URN: urn:nbn:se:ltu:diva-5850DOI: 10.1179/174328911X12988622800855ISI: 000288594900002Scopus ID: 2-s2.0-79953068312Local ID: 409cc390-a462-11df-a707-000ea68e967bOAI: oai:DiVA.org:ltu-5850DiVA, id: diva2:978726
Note
Validerad; 2011; 20100810 (krioks)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Hietala, MaijuOksman, Kristiina

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CiteExportLink to record
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