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Weathering of wood-polypropylene composites containing pigments
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science. Department of Mechanical Engineering, Lappeenranta University of Technology.ORCID iD: 0000-0002-7282-9841
Department of Mechanical Engineering, Lappeenranta University of Technology.
Department of Mechanical Engineering, Lappeenranta University of Technology.
2012 (English)In: European Journal of Wood and Wood Products, ISSN 0018-3768, E-ISSN 1436-736X, Vol. 70, no 5, p. 719-726Article in journal (Refereed) Published
Abstract [en]

Outdoor applications of composites have raised questions about their durability. In this study, the effects of outdoor weathering on the properties of wood-polypropylene composites with and without pigments were examined. The composites were placed outdoors for one year, and their colour changes were evaluated after 1, 3, 6, 9 and 12 months of weathering. The durability of the composites was assessed by testing flexural strength and density. Scanning electron microscopy was applied to evaluate the surface degradation of the composites. The weathering resulted in considerable colour fading of the composites. The composites containing darker colour pigments had better colour stability. After weathering, the general trend was a decrease of the flexural strength and density of the composites. The decrease in flexural strength was found to be lower for the composites having higher density.

Place, publisher, year, edition, pages
Springer, 2012. Vol. 70, no 5, p. 719-726
National Category
Bio Materials
Research subject
Wood and Bionanocomposites
Identifiers
URN: urn:nbn:se:ltu:diva-67984DOI: 10.1007/s00107-012-0606-yScopus ID: 2-s2.0-84865960010OAI: oai:DiVA.org:ltu-67984DiVA, id: diva2:1191394
Available from: 2018-03-19 Created: 2018-03-19 Last updated: 2018-03-19Bibliographically approved

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