摘要
采用聚全氟乙丙烯(FEP)为基体,偶联处理的氮化铝(AlN)为填料,通过共混、模压等方法制备了高导热、高绝缘的FEP/AlN复合材料。结合材料导热计算模型,分析了AlN含量对材料热导率、体积电阻率、力学以及流变性能的影响。结果表明:随AlN填充量的增加,复合材料的热导率呈近线性增加,当填加AlN的质量百分率为30%时,材料的热导率可达2.22 W/(m.K),体积电阻率可达1.5×1013Ω.m,并具有较好的力学性能和流变性能。
Using tetrafluoroethylene-hexafluoropylene coplymer（FEP） as a matrix, aluminum nitride（AIN） particles modified by coupling agents as filler, the FEP/AIN composites with high thermal conductivity and insulating charateristics were achieved by the blending and hot press molding in this paper. The effects of AIN content on the thermal conductivity, volume resistance, mechanical properties and rheological behavior of the AIN/ FEP composites were investigated based on a thermal conducting model. The results show that the thermal conductivity increases with increasing AIN content. When AIN content is 30W%, the thermal conductivity andvolume resistance of the composite reach 2.22 W/m · K and 1.5× 10^13Ω·m respectively. At the same time, the FEP/AIN composites present good mechanical properties and rheological behavior.
出处
《绝缘材料》
CAS
2007年第2期10-13,共4页
Insulating Materials
基金
浙江省自然科学基金人才培养资助项目(R503223)
浙江省科技计划项目资助(2004C31048)
关键词
聚全氟乙丙烯
氮化铝
绝缘
导热
tetrafluoroethylene-hexafluoropylene coplymer
aluminum nitride
insulation
thermal conductivity
作者简介
张诚（1966-）．男．山东淄博人．教授．博士生导师；研究方向为功能复合材料制备与表征、聚合物共混与改性、纳米材料、阻尼材料及吸波材料的研究与开发．（电话）0571—88320253（电子信箱）czhang@zjut．edu．cn。
