Preparation of acetylated wood meal and polypropylene composites II: mechanical properties and dimensional stability of the composites

摘要: Acetylated wood meals of Sugi (Cryptomeria japonica D.Don) were prepared by mechanochemical processing using a high-speed vibration rod mill. Weight percent gain (WPG) the acetylated ranged from 7.0 to 35.5 %. Wood–plastic composites (WPCs) containing 50 % woods produced an injection molding technique. The polymer matrix used was polypropylene homopolymer. Maleic anhydride-grafted (MAPP) also as compatibilizing agent. mechanical properties WPCs in bending and tensile tests independent WPG meals, test values for lower than that unmodified meal. use MAPP increased strength, but no effect on modulus found. An increase significantly decreased water absorbability thickness swelling measured dimensional stability tests. These results demonstrated is promising technique preparing WPC material with improved stability. future challenge inhibit decreases meals.