HDPE和MVQ导热性的影响因素  

Influential Factors on Thermal Conductivity of HDPE and MVQ

作　　者：杜茂平[1] 魏伯荣[1] 宫大军[1] 

机构地区：[1]西北工业大学理学院高分子研究所,陕西西安710072

出　　处：《塑料工业》2007年第8期40-42,共3页China Plastics Industry

摘　　要：对高密度聚乙烯(HDPE)、HDPE/导热填料和硅橡胶(MVQ)/导热填料三种材料的导热性能进行了试验研究。总结分析了导热填料种类及含量、温度、结晶度、密度等方面因素对材料导热性能的影响。实验结果表明:HDPE材料的热导率随着结晶度的增大而上升;随着导热填料粒径的增加,HDPE、MVQ材料的热导率增大;材料密度的提高,可提高导热性能。The thermal conductivity of HDPE, HDPE/thermal fillers and MVQ/thermal fillers were re- searched by means of experiments. The influence of the type and content of thermal conductive filler, as well as the influence of temperature, crystallinity and density of material, on the thermal conductivity was summarized and analyzed. The results showed the thermal conductivity of HDPE increased with the increase of the crystallinity; the thermal conductivity of HDPE and MVQ increased with the increase of the particle diameter of the thermal filler; the increase of the density of the material could improve the thermal conductivity of the material.

关 键 词：HDPE MVQ 导热填料 热导率 影响因素 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]