PP-g-NH_2对PP/纳米SiO_2复合材料流变行为的影响  

EFFECT OF PP-g-NH_2 ON RHEOLOGY BEHAVIOR OF POLYPROPYLENE/NANO-SILICA COMPOSITES

作　　者：周红军[1] 葛建芳[1] 严志云[1] 

机构地区：[1]仲恺农业技术学院化学化工系,广州510225

出　　处：《工程塑料应用》2007年第8期52-55,共4页Engineering Plastics Application

摘　　要：采用高级扩展流变仪研究了反应性增容剂氨化聚丙烯(PP-g-NH2)对聚丙烯(PP)/纳米SiO2复合材料流变性能的影响。结果表明,当PP、环氧功能化纳米SiO2、PP-g-NH2按87/3/10质量比共混时,所得复合材料的储能模量、损耗模量和复合粘度均比纯PP明显增大,流动活化能从24.9kJ/mol增大到26.9kJ/mol,呈现比纯PP更明显的剪切变稀现象。The effects of reactive compatibilizer amine functionalized polypropylene （ PP-g-NH2 ） on rheology behaviors of nano-silica filled polypropylene （PP） composites were studied by advanced rheology expanded systems. The results showed that in the case of the mass ratio of PP, surface epoxy functionalized nano-silica and PP-g-NH2 was 87/3/10, the modulus and viscosity of PP composites were increased markedly, the flow activation energy rised from 24.9 kJ/mol to 26.9 kJ/mol, and the composites displayed more serious shear thinning behaviors.

关 键 词：聚丙烯 纳米SIO2 反应性增容剂 氨化聚丙烯 流变行为 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]