高流动高模量高抗冲聚丙烯复合材料的制备及性能研究  

Study on Preparation and Properties of High-flowing,High-modulus and High-impact Polypropylene Composites

作　　者：郑智焕 李彦涛 杨丽庭[1] 黄文杰 李臻 曾聪 ZHENG Zhihuan;LI Yantao;YANG Liting;HUANG Wenjie;LI Zhen;ZENG Cong(School of Chemistry and Environment,South China Normal University,Guangzhou 510006,China;MBS Environmental Technology Corporation,Guangzhou 511483,China)

机构地区：[1]华南师范大学化学与环境学院,广州510006 [2]广州石头造环保科技股份有限公司,广州511483

出　　处：《中国塑料》2018年第8期33-39,共7页China Plastics

摘　　要：研究了弹性体(POE)、滑石粉(talc)、乙撑双硬脂酰胺(EBS)的含量对高流动、高模量、高抗冲聚丙烯(PP)复合材料的力学性能、熔体流动速率、结晶温度、热稳定性以及微观断面结构的影响。结果表明,需要25份POE才能使高流动性共聚PP发生完全脆韧转变;通过熔融共混制备PP、POE、talc复合材料(PP/POE/talc),当复合材料的质量份数比为80∶20∶40时,制得的PP/POE/talc复合材料的熔体流动速率为22.9g/10min、弯曲模量为1 887.7 MPa、缺口冲击强度为31.2kJ/m^2;对比纯PP,其弯曲模量提高了102.2%,缺口冲击强度提高了217.8%,弯曲强度提高了2.6%,拉伸强度降低了15.1%;添加1份EBS能够同时提高PP/POE/talc复合材料的熔体流动速率与缺口冲击强度。The effects of POE, talc, EBS on the mechanical properties, meh flow index, crystallization temperature, thermal stability and fracture morphology of PP matrix composites were investigated. The incorporation of 25 phr POE into this PP resulted in a completely brittle-ductile transition. The composites achieved a meh flow index of 22.9 g/10 rain, flexural modulus of 1887.7 MPa and notched impact strength of 31.2kJ/m2 at a PP/POE/talc weight ratio of 80 ： 20 ： 40. Compared to pure PP, the composites gained an increase in flexural modulus by 102. 2 %, in notched impact strength by 217.8 % and flexural strength by 2.6%, and however they showed a decrease in tensile strength by 15.1%. Both the melt index and notched impact strength of the composites tended to increase with the addition of lphr EBS.

关 键 词：高流动聚丙烯 高模量 高韧性 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]