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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
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Title: Durability of PLA-modified wood composites

Source: Proceedings of the 11th international conference on wood and biofiber plastic composites & nanotechnology in wood composites symposium, 2011 May 16-17, Madison, WI. Madison, WI : Forest Products Society, 2011: [3] p. [1 flash drive]

Author(s)Kristoffer, Segerholm B.; Ibach, Rebecca E.; Westin, Mats

Publication Year: 2011  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4707-2A

Abstract: The commercial production of modified wood has increased over the last decade. This production and further processing also renders modified wood residuals in the form of shavings and sawdust that currently goes to energy production. One way to gain value of these residuals would be to further process them into fibers and flour to be used for production of new durable biocomposites. By combining the modified residuals with a biobased thermoplastic polymer, new durable biocomposites can be processed. In this study acetylated fiber and flour, thermally modified flour and unmodified fiber reference have been compounded with poly lactic acid (PLA) and injection molded into 80 mm long test bars with a cross section of 4 x 10 mm2. The objective was to study these composites regarding the biological durability in a modified soil block test according to ASTM D1413. The specimens were also mechanically tested in three-point bending after the decay test.

Keywords: Mechanical properties, extrusion process, wood flour, composite materials, wood-plastic composites, fibrous composites, injection molding of plastics, thermoplastic composites, wood-decaying fungi, biodegradation, Gloeophyllem trabeum, brown rot, wood durability, polylactic acid, wood-plastic materials, biocomposites, soil block testing, resistance to decay, strength, decay fungi

Publication Review Process: Non-Refereed (Other)

File size: 621 kb(s)

Date posted: 09/28/2011
RITS Product ID: 40151
Current FPL Scientist associated with this product
Ibach, Rebecca E.
Research Chemist
  

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