机械活化法制备PVC/PP导热复合板材  

Preparation of PVC/PP thermal conductivity polymer composites by mechanical activation

作　　者：谢谷强 黄荣慧[1] 宁圆华 沈芳[1] 常亚丽[1] 郑为朋 周延松[1] 

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《大众科技》2015年第9期86-87,共2页Popular Science & Technology

基　　金：广西大学大学生实验技能和科技创新能力训练基金(SYJN20130346);广西科学研究与技术开发项目(桂科转14125002-7)

摘　　要：取一定量的PVC、PP按不同配比混合为基料,与30%的石墨在高能球磨机中混合,经机械活化后的混合粉末颗粒通过平板硫化机压成导热复合板材,测定复合板材的导热率及导电率。结果表明:当PVC含量为45%,PP含量为25%,石墨含量为30%时,复合板材导热率最高,为0.52805W/m·K,电阻率为0.49.Ω.cm。A certain amount of PVC and PP were mixed as base material, which was put into a high-energy ball milling to be mixed with 30% graphite. After being mechanical activation, the powder mixture was prepared into thermal conductivity polymer composites through vulcanizing machine. Then the thermal conductivity and electrical conductivity of the composite were measured. It showed that the highest thermal conductivity of the composite was 0.52805W/m·K, the resistivity was 0.49？.c.m with the condition of PVC 45%, PP25%, graphite30%.

关 键 词：PVC PP 机械活化 导热 

分 类 号：TH14[一般工业技术—材料科学与工程]