纳米蒙脱土对聚丙烯微孔发泡行为的影响  

The Effect of Nano-MMT on Micro-Foaming Behavior of Polypropylene

作　　者：曹太山[1,2] 何力[2] 张纯[2] 吉玉碧[2] 高俊强[2] 蒋团辉[2] 

机构地区：[1]长沙理工大学汽车与机械工程学院,湖南长沙410114 [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》2009年第6期28-30,共3页Plastics

基　　金：国家重点基础研究发展计划(2007 C B616912);贵州省科学技术基金(黔科合J字[2008]2005号);贵州省科技支黔工程(黔科合院地合[2007]700102)

摘　　要：通过二次开模注塑成型法制备聚丙烯/蒙脱土复合材料的微孔发泡塑料。用扫描电镜对发泡样品的泡孔结构进行表征,研究蒙脱土含量对微孔发泡材料的泡孔结构和注塑成型温度的影响。结果表明:在聚丙烯中加入纳米蒙脱土可以使泡孔直径减小、泡孔密度增加,注塑成型温度范围变宽;加入的蒙脱土含量为5%时,泡孔直径最小、泡孔密度最大。The microcellular foam plastic of PP/MMT nano-composite was prepared by ＂two times opening mold＂ injection mounding method. The cell structures of foams were characterized by scanning electron microscope. The effects of nano-montmorillonite（MMT） content on cell structure and injection mounding temperature were investigated. Results showed that the cell structure could be improved through adding nano-MMT into polypropylene （PP） ,and the range of injection mounding temperature was broaden. Adding 5 % nano-MMT into the PP,a relatively optimum microcellular structure was obtained.

关 键 词：纳米蒙脱土 聚丙烯 微孔发泡 泡孔直径 泡孔密度 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]