INFLUENCES OF WOOD PARTICLE SHAPE AND SURFACE MODIFICATION OF WOOD ON WOOD/PP COMPOSITES

摘要

Nature fibers are increasingly being used as reinforcement in commercial thermoplastics due to their low cost, high specific properties and renewable nature. All of nature fiber, wood is the most popular one that researched by many scientists. To understand how wood flour influence the mechanical properties of polypropylene composites, we first investigated the effect of different sizes of wood flour particles on the mechanical properties of wood-flour-filled polypropylene composites by tensile test. And we modified the surface of wood with H-1000P and bondfast (BF-E), researched effect of them to mechanical properties of wood/PP composites based on tensile test. The result shows that the wood/PP composites which reinforced by high aspect ratio wood, the elastic modulus will be improved, which reinforced by low average particle length, the elongation will be better. On the other hand, according to modifying the surface of wood by H-1000P and BF-E, the mechanical properties of wood/PP composites is improved.