聚丙烯/蒙脱土纳米复合材料的制备和性能  

PREPARATION AND PROPERTIES OF POLYPROPYLENE/MONTMORILLONITE NANOCOMPOSITES

作　　者：宋军[1] 倪卓[2] 王宝辉[1] 宋磊[2] 张怀志[2] 

机构地区：[1]大庆石油学院化学化工学院,163318 [2]哈尔滨理工大学,150080

出　　处：《现代塑料加工应用》2005年第2期14-16,共3页Modern Plastics Processing and Applications

摘　　要：采用熔融插层法在双螺杆挤出机中制备了聚丙烯(PP)/蒙脱土(MMT)纳米复合材料,纳米复合材料机械性能测试结果表明,当有机MMT质量分数为2%时,复合材料的弯曲强度明显优于PP。扫描电镜观测不到纳米复合材料中明显的有机-无机相畴,表明MMT片层分散均匀,分散尺度已基本达到纳米级。DSC(差示扫描量热仪)分析测试结果表明,MMT的加入提高了PP的结晶速率,并使结晶度增大。Polypropylene(PP)/Montmorillonite(MMT) nanocomposites were prepared by melt intercalation method using a twin-screw extruder.The results of mechanical performance tests showed that the bend strength of the composites with lower montmorillonite contents(being 2%)were higher than that of PP. SEM indicated absence of clear organic phase and inorganic phase in the nanocomposites .The result of DSC indicated that both the crystallization rate and crystallization degree of PP were increased by the adding of montmorillonite .

关 键 词：纳米复合材料 聚丙烯 制备 蒙脱土 差示扫描量热仪 双螺杆挤出机 熔融插层法 MMT 有机无机 电镜观测 弯曲强度 质量分数 性能测试 分析测试 结晶速率 纳米级 DSC 分散 PP 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]