共混复合方式对PP/PP-g-MAH/MMT纳米复合微孔发泡材料力学性能及发泡质量的影响  

Effect of Blend Composite Process on Mechanical Properties and Foaming Quality of PP/PP-g-MAH/MMT Nanocomposite Microcellular Foams

作　　者：高俊强[1,2] 何力[1,2] 张纯[2] 龚维[2] 孙洪恩[1,2] 

机构地区：[1]贵州大学化学与化工学院,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

出　　处：《塑料工业》2009年第9期61-63,79,共4页China Plastics Industry

基　　金：国家重点基础研究发展计划(973)资助项目(2007CB616912);贵州省科学技术基金项目(黔科合J字[2009]2020号)

摘　　要：采用双螺杆熔融共混法,以5种不同的共混复合方式制备聚丙烯/马来酸酐接枝聚丙烯/蒙脱土(PP/PP-g-MAH/MMT)纳米复合材料母粒。用化学发泡法注塑成型制备PP/PP-g-MAH/MMT纳米复合微孔发泡材料。探讨了不同共混复合方式对微孔发泡材料力学性能及发泡质量的影响。结果表明:不同的共混复合方式对纳米复合微孔发泡材料的力学性能和发泡质量均有影响。其中先将MMT和PP-g-MAH熔融共混,再与PP熔融共混制备的复合材料进行微孔发泡,其力学性能最优,发泡质量最好。The polypropylene/maleie anhydride grafted polypropylene/montmorillonite （PP/PP-g-MAH/ MMT） nanoeomposites were prepared by melt blending in twin-screw extruder with five different blend composite procedures. And the nanoeomposite mierocellular foams were made by chemically foaming injection molding method. The effects of the blend composite process of preparing PP/PP-g-MAH/MMT nanoeomposires on mechanical properties and foaming quality of PP/PP-g-MAH/MMT nanocomposite mierocellular foams were investigated. Found that the different procedures affected mechanical properties and foaming quality of microcellular foams. Firstly, MMT and PP-g-MAH were melt blended and then melt blended with the PP composite materials to prepare porous foam, got the best mechanical properties and quality foam.

关 键 词：聚丙烯 纳米蒙脱土 马来酸酐接枝聚丙烯 微孔发泡 力学性能 发泡质量 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]