Effect of wood particie size on mechanical properties of industrial wood particle-polyethylene composites

摘要

Industrial wood particles used for manufacturing three-layers particleboards were employed to prepare wood/PE-LD composites by an injeetion molding process. The effect of particie size (sieve analysis 0.25-0.5,0.5-1,1-2, and 2-4 mm) and of specimen cross-section size (40, 90 and 160 mm2) on the mechanical properties was studied. Both these factors significantly influen-ced studied properties. The tensile, flexural and impact strengths properties in general increased with increasing particie size while with increasing of specimen cross-section the tensile and flexu-ral moduli increased, and the tensile, flexural and impact strengths decreased.