PVC/CaCO_3纳米复合材料结构与性能的研究  

Study on Structure and Property of PVC/CaCO_3 Nano-meter Composite

作　　者：沈忠林[1] 崔杰[1] 王平华[1] 

机构地区：[1]合肥工业大学化工学院高分子科学与工程系,安徽合肥230009

出　　处：《塑料工业》2005年第6期35-37,共3页China Plastics Industry

基　　金：安徽省自然科学基金项目(03044802);安徽省国际合作项目(0308803);安徽省"十五"二期攻关项目

摘　　要：研究了PVC/CaCO3纳米复合材料的力学性能和热性能,观察了复合材料冲击缺口的断面微观形态和纳米CaCO3粒子在PVC中的分散情况。结果表明当纳米CaCO3粒子的质量分数为10%时,PVC/CaCO3纳米复合材料的冲击强度提高了约365%,拉伸强度略有提高;当纳米CaCO3质量分数超过10%以后,纳米粒子在基体中的分散情况变差;随着纳米CaCO3用量的增加,PVC/CaCO3纳米复合材料的玻璃化转变温度先降后升。The mechanical and thermal properties of PVC/CaCO3 composite were studied.The microconformation of Izod impact fractured surface and the dispersion of the nano-meter particle were analyzed.The results showed when the content of nano-meter CaCO3 was about 10%(by mass),the impact strength of the blends increased by 365% and the tensile strength increased a little;when the content of nano-meter particle was more than 10%(by mass),the dispersion of nano-meter particle in the matrix became bad,and with the increase of the content of nano-meter particle,the glass transition temperature of the composite lowered first,and then rose.

关 键 词：碳酸钙 聚氯乙烯 纳米粒子 微观形态 力学性能 玻璃化转变温度 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]