三种塑料与木纤维复合性能的研究  

A Study of the Properties of Three Different Wood Fiber-Plastic Composites

作　　者：郭文静[1] 王正[1] 黑須博司 

机构地区：[1]中国林科院木材工业研究所,北京100091 [2]日本国际协力事业团中国人工林木材研究项目组

出　　处：《木材工业》2005年第2期8-11,共4页China Wood Industry

基　　金：中日技术合作JICA渠道"中国人工林木材研究"项目内容之一。

摘　　要：选用线性低密度聚乙烯(LLDPE)、聚丙烯(PP)、聚苯乙烯(PS)为原料,以2种比率与木纤维复合,用热压法 制备了3种木塑复合材料,分析了塑料种类对复合材料的物理力学性能的影响。结果表明,LLDPE与木纤维的复合 性能最好,其复合材料的抗冲击性好,但弯曲强度和弹性模量最低;PS与木纤维的复合性最差,其复合材料抗冲击性 很差,但弯曲强度和弯曲弹性模量高;木纤维与PP复合材料的综合性能最佳。由此提出用LLDPE与PS共混改性制 造木/塑复合材料的设想。Three kinds of plastics, linear low-density polyethylene(LLDPE), polypropylene(PP) and polystyrene(PS), were chosen to prepare the wood/plastic composites at two proportions of 25︰75 and 40∶60. The effects of different plastics on the properties of the wood fiber-plastic composites are evaluated though testing and comparing physical and mechanical properties. The results indicated that the compounding property of LLDPE with wood fiber was the best and its composite also showed good impact resistance, but its flexural strength and modulus were the lowest. For the wood fiber-PS composite, the flexural strength and modulus were excellent, but the impact resistance and the compounding property of PS with wood fiber were poor. On the whole, the properties of the wood fiber-PP composite were superior to the other two. Based on these results, the authors suggest that it is very necessity to develop blends of low-density polyethylene and polystyrene to be used for wood/plastic composites.

关 键 词：木塑复合材料 木纤维 性能 

分 类 号：TS65[轻工技术与工程]