功能化聚丙烯用作相容剂的研究  

Study on usage of functionalized PP as compatibilizer

作　　者：吕占霞[1] 徐宏德[1] 李杨[2] 胡友良[3] 

机构地区：[1]中国石油化工股份有限公司北京燕山分公司研究院,北京102500 [2]大连理工大学,辽宁大连116024 [3]中国科学院化学研究所,北京100039

出　　处：《合成树脂及塑料》2007年第5期58-61,共4页China Synthetic Resin and Plastics

摘　　要：研究了功能化改性聚丙烯(PP)对PP/苯乙烯-丁二烯-苯乙烯三嵌段共聚物/有机蒙脱土共混体系结构和性能的影响。用X射线衍射仪、偏光显微镜和透射电子显微镜等分析了共混体系的结构与形貌。结果表明,接枝功能化聚丙烯(MPP)的加入,促进了PP的β晶型生成,减小了晶粒尺寸,改善了共混体系的相容性。在拉伸强度下降幅度较小的情况下,MPP的引入较明显地提高了共混体系的抗冲击性能和热性能。The effects of modified polypropylene （MPP） on structure and properties of the composites consisting of polypropylene（PP）/styrene-butadiene-styrene triblock copolymer/organic montmoriUonite （PP/SBS/OMMT） were studied. The structure and morphology of the composites were characterized by X-ray diffractometry （XRD）, polarizing light microscopy （PLM）, transmission electron microscopy （TEM）, scanning electron microscopy （SEM） and thermogravimetric analysis. The results show that adding MPP can facilitate formation of β- crystal of PP, reduction in dimension of crystal of PP and improvement in compatibility of the composites. The introduction of MPP can significantly raise the mechanical and thermal properties of the composites under the condition of making their tensile strengths decrease less.

关 键 词：聚丙烯 苯乙烯-丁二烯-苯乙烯三嵌段共聚物 功能化 相容剂 改性 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]