Abstract: In this paper, the wood flours were treated with the silane coupling agent, and then mixed with the waste plastics, in which the majorority is polypropylene (PP). The wood meal reinforced PP composite was prepared in this way. The measurment on mechanical property and thermal property were performed by varing the grain size and content of wood meal in the composite, the recrystallization property of 20% (mass content) wood meal reinfored plastic was measured by the ultraviolet fluorescence test, and the results show that the mechanical property increased first and then decreased with the grain size and content of wood meal. The thermal property decreased with the content of wood meal. The crystallinity of PP matrix increased with the time exposing to the ultraviolet fluorescence.

Key words: wood flour, waste plastic, thermal property, mechanical property, ultraviolet fluorescence test