新型核壳纤维增韧聚丙烯的研究  

Study on the Toughening of PP with A Novel Core-Shell Fiber

作　　者：王志华[1,2,3] 温世鹏[1,2,3] 胡水[1,2,3] 张法忠[1,2,3] 刘力[1,2,3] 张立群[1,2,3] 

机构地区：[1]北京化工大学北京市新型高分子材料制备与加工重点实验室,北京100029 [2]北京化工大学碳及功能高分子材料教育部重点实验室,北京100029 [3]北京化工大学教育部纳米材料重点实验室,北京100029

出　　处：《塑料工业》2011年第7期39-42,共4页China Plastics Industry

基　　金：国家"十一五"科技支撑计划资助项目(2006BAE03B02)

摘　　要：采用同轴静电纺丝技术制备聚碳酸酯为壳层,三元乙丙橡胶为核层的直径为300～600 nm的同轴纤维。将不同份数的核壳纤维与聚丙烯经过单螺杆混合,注塑后得到PP/核壳纤维复合材料。研究发现,核壳纤维用量在3份以下时,其在PP基体中的分散均匀,界面良好;核壳纤维的加入使PP的结晶速率提高,β晶含量先增大后减少;核壳纤维的用量为3份时,冲击性能较纯PP相比提高了22.17%。Coaxial fiber with PC as shell, ethylene-propylene-diene monomer as core of diameter 300 - 600nm were firstly prepared through coaxial electro spinning technology. Various amounts of coaxial fibers were mixed with PP in the single-screw and got PP/core shell fiber compound. It showed the interface of coreshell fiber on PP matrix was excellent and the fibers distributed evenly, when core-shell fiber content was less than 3 phr. The crystallization rate increased as the content of fiber increasing; β crystal content increased and then decreased; when core-shell fiber content was 3 phr, the notch impact strength of composites in- creased by 22. 17%than that of neat PP.

关 键 词：静电纺丝 核壳纤维 聚丙烯 抗冲击性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]