The PLA content influence selected properties of wood-based composites

Abstract

The PLA content influence selected properties of wood-based composites. The aim of the research was to find how the lower (25%) and higher (50%) PLA content affects the selected properties of the obtained WPC samples. The result of the strength tests (compressive strength) shows, that the increasing content of PLA, increases the compressive strength value. The ash content value determining mineral saturation, decreasing with increasing PLA content but there is no significant difference. The moisture content was carried for wood sampleby drying the material and was figured by differences in the material weight mass. Raw material samples was compacted inside the chamber to form the composites by using high temperature (230°C) and strength not higher than 600 N. Optical analyzed was performed for analyzing the structure of the prepared sample, and comparing that structure before and after strength test. It can be concluded, that increasing thermoplastic content in biocomposites causes better strength, and it has not significant bad impact on the environment.