无机纳米-聚酰亚胺复合薄膜介电性研究  

Study on the Dielectric Property of Nano-inorganic-polyimide Composite Films

作　　者：张沛红[1] 薛玉翠[1] 杨春[1,2] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150040 [2]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《哈尔滨理工大学学报》2009年第2期98-102,共5页Journal of Harbin University of Science and Technology

基　　金：黑龙江省教育厅科学技术研究项目(11511076)

摘　　要：测试了纳米Al2O3-聚酰亚胺(PI)复合薄膜和纳米SiO2-聚酰亚胺复合薄膜的介电常数、介质损耗角正切和电导电流特性.结果表明,随着无机物含量的增加,两种复合薄膜的相对介电常数和介质损耗角正切增大,电老化阈值减小;无机物含量相同时,Al2O3-聚酰亚胺复合薄膜的相对介电常数和介质损耗角正切比SiO2-聚酰亚胺复合薄膜大,电导电流大,电老化阈值小.The characteristics of permittivity and dissipation factor and conduction current of nano Al2O3-polyimide composite film and nano SiO2-polyimide composite film were measured. Experiment results showed that the permittivity and dissipation factor of the two kinds of composite films increase and the electrical ageing threshold decrease with increasing of nano inorganic content, the permittivity and dissipation factor of nano Al2O3-polyimide composite film are larger than that of nano SiO2-polyimide composite film and the electrical ageing threshold of the former is smaller than that of the latter.

关 键 词：无机纳米-聚酰亚胺复合薄膜 介电常数 介质损耗角正切 电老化阈值 

分 类 号：TM201.42[一般工业技术—材料科学与工程]