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Publikācija: Wood Plastic Composites Made with Thermally Modified Birch Wood Residues

Publication Type Full-text conference paper published in other conference proceedings
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Wood Plastic Composites Made with Thermally Modified Birch Wood Residues
Field of research 2. Engineering and technology
Sub-field of research 2.5 Materials engineering
Authors Edgars Kuka
Dace Cīrule
Jānis Kajaks
Ingeborga Andersone
Bruno Andersons
Keywords Wood plastic composites, Bio-based materials, Modified wood, Thermal wood modification, Wood waste
Abstract Thermally modified (TM) wood production has significantly increased in the last decade. The trend for TM wood residues should be similar – rapidly increasing, which has prompted this research on the possible efficient uses of these residues, such as sawdust. One of the possibilities could be the production of wood plastic composites (WPCs). In this work, three different hydrothermal modification regimes were used to modify birch boards. Modified and unmodified birch boards were milled to obtain sawdust. WPCs were made with a two-roll mill, and they consisted of 50 wt-% wood fibres + 50 wt-% polypropylene. Melt flow index (MFI), flexural properties, impact strength, microhardness water absorption and dimensional stability were tested. WPCs with TM wood showed improvement in flexural properties, MFI and other properties, however there was a decrease in impact strength. Scanning electron microscopy pictures of impact strength samples fracture surfaces were taken.
Reference Kuka, E., Cīrule, D., Kajaks, J., Andersone, I., Andersons, B. Wood Plastic Composites Made with Thermally Modified Birch Wood Residues. In: Proceedings of the International Panel Products Symposium 2015, United Kingdom, Llandudno, 7-8 October, 2015. Bangor: Bangor University, 2015, pp.241-252. ISBN 978-1-84220-136-7.
ID 22795