Effects of slow pyrolysis derived birch distillate on the properties of wood-plastic composites
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Birch distillate was tested as an additive in commercial wood-plastic composites by studying the mechanical properties and water absorption of the modified composites prepared by injection molding. The addition of wood distillate decreased the water absorption (24 h) of some samples and increased the processability of the composite granules. This preliminary test sets a basis for further studies, which include the addition of different amounts and different fractions of the distillates and tests with different addition methods.
KeywordsLignin Water Absorption Sawdust Injection Molding Wood Fiber
The authors thank Antti Pietarinen for his expertise and help in sample preparation. This study was financially supported by ERDF (granted by the Finnish Funding Agency for Technology and Innovation) and companies (project 70049/2011, “Novel characterization methods and applications for wood-plastic composites, WPC”).
- Finnish Thermowood Association (2003) Thermowood handbook. Finnish Thermowood Association. http://www.thermowood.fi/brochurestexts. Accessed 2 October 2014