聚丙烯/硅灰石复合材料的性能研究进展  

Research Progresses of Properties of Polypropylene/Wollastonite Composites

作　　者：丁茜[1] 张帆[1] 许保卫[1] 

机构地区：[1]湖南工学院材料与化学工程学院,湖南衡阳421002

出　　处：《广州化工》2016年第18期6-7,32,共3页GuangZhou Chemical Industry

基　　金：湖南省自然科学基金(2016JJ6033);湖南工学院博士启动基金(HQ14013)

摘　　要：硅灰石填充聚丙烯(PP)可以提高其刚性,并显著降低其生产成本。本文综述了PP/硅灰石复合材料的结晶行为、力学性能和热性能等方面的研究进展。硅灰石对PP结晶具有异相成核作用,能够提高PP的结晶温度,但主要形成α-PP。同时硅灰石对PP具有一定的增强和增韧作用,改善PP的模量和冲击强度。凭借独特的纤维结构,优异的增强效果和低廉的价格,硅灰石在PP改性领域具有广阔的应用前景。Wollastonite filled polypropylene （PP） can improve its stiffness and significantly decrease its production costs. The research progress of the crystallization behavior, mechanical properties and thermal performance of PP/ wollastonite composites were summarized. Wollastonite had heterogeneous nucleation effect on the crystallization of PP to increase crystallization temperature of PP. However, wollastonite filled PP composites mainly formed a-PP. Furthermore, wollastonite had good toughening and reinforcing effects on PP, which can improve modulus and impact strength of PP. With particular fiber structure, excellent reinforcement effect and low price, wollastonite has wide prospect of application in the field of polypropylene modification.

关 键 词：聚丙烯 硅灰石 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]