Moisture Absorption, Desorption, and Moisture-induced Electrical Performances of High-temperature Vulcanized Silicone Rubber

被引：28

作者：

Wang, Z. ^{[1
]}

Jia, Z. D. ^{[1
]}

Fang, M. H. ^{[1
]}

Li, Y. S. ^{[1
]}

Guan, Z. C. ^{[1
]}

机构：

[1] Tsinghua Univ, Grad Sch Shenzhen, Shenzhen 518055, Guangdong, Peoples R China

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2016年 / 23卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Moisture absorption; moisture desorption; tensile stress; AC electric field; depolarization current; WATER-ABSORPTION;

D O I：

10.1109/TDEI.2015.005452

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This study focuses on the moisture absorption, moisture desorption, and moisture-induced electrical performances of high-temperature vulcanized (HTV) silicone rubber (SR). The influences of some parameters, such as filler (fumed silica and aluminum hydroxide) characteristics, relative humidity, temperature, tensile stress, and AC electric field, on moisture absorption/desorption are investigated. Results show that the tensile stress accelerates the moisture uptake and increases the saturated moisture absorption rate of HTV SR, and that the AC electric field has no significant influence on the moisture absorption of HTV SR. The dependencies of the dielectric constant, loss tangent, volume resistivity, AC breakdown strength, depolarization current, and polarization charge of HTV SR on the moisture absorption rate are examined. The depolarization current and the polarization charge as a whole increase with the increased moisture absorption rate of HTV SR.

引用

页码：410 / 417

页数：8

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