微发泡PP/GF复合材料力学性能研究  

Study on Mechanical Properties of Micro-foam PP/GF Composites

作　　者：龚维[1,2] 何颖[1] 张纯[2] 朱建华[2] 何力[2] 

机构地区：[1]贵州师范大学材料与建筑学院,贵州贵阳550014 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014

出　　处：《塑料科技》2012年第5期44-47,共4页Plastics Science and Technology

基　　金：贵州省工业攻关项目(黔科合GY字(2011)3011);国家973前期项目(2007CB616912)

摘　　要：采用化学发泡注塑成型的方法制备了微发泡聚丙烯/玻璃纤维(PP/GF)复合材料;结合成核理论和玻纤增强机理,研究了发泡质量对微发泡PP/GF复合材料力学性能的影响。结果表明:在PP/GF复合材料中添加5.0%纳米SiO2后,纳米SiO2对PP与GF的相容性并无太大影响,微孔发泡PP/GF复合材料的拉伸强度和冲击强度得到较大提高。The micro-foam PP/GF composite was prepared by means of chemical foaming injection molding technology.By combining nucleation theory and glass fiber strengthening mechanism,the effect of foaming quality on mechanical properties of micro-foam PP/GF materials was analyzed.The results show that： when adding 5% content of nano-SiO2 into PP/GF composites,the compatibility between PP and glass-fiber almost has no change,and then the tensile strength and impact strength of PP/GF composites improve greatly.

关 键 词：聚丙烯 复合材料 微发泡 力学性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]