云母粉对聚丙烯微孔发泡行为和力学性能的影响  

Effects of Mica Powder on PP Micro Foaming Behavior and Mechanical Properties

作　　者：郑祥[1,2] 张凯舟[2] 柯昌月[1,2] 龚维[2] 赵武学[3] 

机构地区：[1]贵州大学,贵州贵阳550003 [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 [3]上海交通大学化学化工学院,上海200240

出　　处：《现代塑料加工应用》2012年第2期39-42,共4页Modern Plastics Processing and Applications

基　　金：贵州大学研究生创新基金项目(校研理工2011047)资助

摘　　要：将云母粉加入到聚丙烯(PP)中,在二次开模条件下制备微孔发泡PP/云母粉复合材料,分析了不同含量的云母粉对微孔发泡复合材料发泡行为及力学性能的影响。结果表明,当云母粉质量分数为6%时微孔发泡复合材料的泡孔尺寸最小,泡孔密度最大;随着云母粉加入量的增大微孔发泡复合材料的缺口冲击强度略有降低,拉伸强度基本保持不变。Mica powder was added into polypropylene （PF） matrix to prepare mlcrocfoam PP/mica powder composite by means of twice-opening moulding technology. The effect of mica powder content on foaming behavior and mechanical property of mi- crocellular composite was studied. The results show that as the mica powder content is 6%, size of bubble holes is minimum and bubble hole density is the largest. Along with the increase of the quantity of mica powder in the foam composite materials, notched impact strength decreases slightly, tensile strength basically remains the same.

关 键 词：微发泡 云母粉 聚丙烯 发泡行为 力学性能 

分 类 号：TQ328.0[化学工程—合成树脂塑料工业]