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

Publication Type Scientific article indexed in SCOPUS or WOS database
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.
DOI: 10.1080/20426445.2016.1214439
Hyperlink: http://www.tandfonline.com/doi/full/10.1080/20426445.2016.1214439 
Reference Kuka, E., Cīrule, D., Kajaks, J., Andersone, I., Andersons, B. Wood Plastic Composites Made with Thermally Modified Birch Wood Residues. International Wood Products Journal, 2016, Vol.7, Iss.4: International Panel Products Symposium 2015, pp.225-230. ISSN 2042-6445. e-ISSN 2042-6453. Available from: doi:10.1080/20426445.2016.1214439
Additional information Citation count:
ID 24022