摘要
将碳纳米管混入Al2O3/硅橡胶复合材料中,制得了导热硅橡胶复合材料并对其进行了研究。结果表明:随着碳纳米管用量的增加,材料导热性能逐渐增加;碳纳米管有助于填料网络结构的形成,达到了协同增加导热性能的效果;原预想碳纳米管在体系中伸展后能形成导热通路,可大幅提高导热效率,但由于开炼共混时未能保存住其高长径比的特点,增益效果不够显著。
The thermal conductive silicone rubber composite was prepared and researched by blending carbon nanotubes （CNT） to Al2O3/ silicone rubber composite. The results showed that the thermal conductive behaviour of Al2O3/ silicone rubber/CNT composite was increasing with the increasing of CNT dosage ;CNT were of assistance in forming the filler-network structure,and reached the effect of cooperatively improving the thermal conductive behaviour ;The improvement effect provided by CNT did not achieve the expectation because CNT ruptured and losed their original feature of high aspect ratio during the blending.
出处
《特种橡胶制品》
2009年第2期1-6,共6页
Special Purpose Rubber Products
基金
国家自然科学基金项目(50873007)
北京市自然科学基金项目(2082019)
北京市科技新星计划(2006A15)
关键词
碳纳米管
导热硅橡胶
填料网络结构
carbon nanotubes（CNT）
thermal conductive silicone rubber
filler-network structure
