非线性添加剂对聚酰亚胺介电性能的影响  

Influence of Non-Linear Filler on Electrical Parameter of Polyimide

作　　者：白婧婧[1] 乌江[1] 王金锋[1] 郑晓泉[1] 李盛涛[1] 

机构地区：[1]西安交通大学电力设备电气绝缘国家重点实验室,西安710049

出　　处：《宇航材料工艺》2010年第1期53-55,共3页Aerospace Materials & Technology

基　　金：国家自然科学基金(50577052);电力设备电气绝缘国家重点实验室自主课题(EIPE09107)

摘　　要：采用非线性添加剂对聚酰亚胺进行电导率改性,研究了改性前后介质的电导特性及其他介电性能,以及添加剂含量对聚酰亚胺复合介质材料电导特性的影响。结果表明,改性后的复合试样的体电导率随添加剂质量分数的变化而变化,当质量分数小于5%时,电导率略有下降,大于5%时显著上升。改性后的复合介质材料的非线性电导率特性变化显著。The modification of the non-linear conductivity property for polyimide by the non-linear filler was studied.The conductance property and other dielectric properties of pre and post modification and the influence of the amount of non-linear filler for conductance property of polyimide was also investigated.The experimental results indicate that the conductivity of the modified composite materials varied according to the amount of non-linear filler.When the mass fraction is less than 5%,the conductivity declined slightly,when the mass fraction is more than 5%,the conductivity went up significantly.The non-linear conductivity of modified composite materials changed obviously.

关 键 词：聚酰亚胺 改性 非线性电导 介电性能 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]