电工技术学报2017，Vol.32Issue(16)：256-264,9.DOI:10.19595/j.cnki.1000-6753.tces.170220
等离子体射流快速改性促进表面电荷衰减
Rapid Surface Modification by Plasma Jet to Promote Surface Charge Decaying
摘要
Abstract
With the rapid development of high voltage DC (HVDC) transmission in China, the surface charge accumulation under the DC voltage has been a serious threat to the safety and reliable operation of HVDC system. In this paper, an atmospheric pressure plasma jet was introduced to deposit SiOx films on epoxy resin surface to accelerate the dissipation of surface charge on insulating material. The reaction precursor was TEOS. The multi-parameters were analyzed before and after plasma modification, including chemical composition, surface conductivity, surface charge distribution, trap depth and voltage endurance. The results showed that a large number of inorganic groups including Si-O-Si and Si-OH groups were introduced on epoxy resin surface, and the surface conductivity increased by 2 orders of magnitude. With the increase of the modification time, the initial accumulation surface charge decreased and the dissipation rate was accelerated. The energy trap depth became shallower after plasma treatment. Besides, the flashover voltage increased to a maximum value of 9kV at 180s. It is shown that atmospheric pressure plasma jet deposited SiOx film on the polymer surface is an effective method for improving the electrical properties of epoxy resin, and provides an effective modification method for industrial application.关键词
等离子体射流/薄膜沉积/表面电荷/环氧树脂/闪络电压Key words
Plasma jet/film deposition/surface charge/epoxy resin/flashover voltage分类
信息技术与安全科学引用本文复制引用
林浩凡,王瑞雪,谢庆,张帅,邵涛..等离子体射流快速改性促进表面电荷衰减[J].电工技术学报,2017,32(16):256-264,9.基金项目
国家自然科学基金面上项目(11575194)、国家重点基础研究发展计划(973计划)(2014CB239505-3)、中央高校基本科研业务费专项资金(2016ZZD07)和河北省自然科学基金面上项目(E2015502081)资助. （11575194）
