Surface modification of epoxy resin using He/CF4 atmospheric pressure plasma jet for flashover withstanding characteristics improvement in vacuum

被引：84

作者：

Chen, Sile ^{[1
]}

Wang, Shuai ^{[1
]}

Wang, Yibo ^{[1
]}

Guo, Baohong ^{[1
]}

Li, Guoqiang ^{[1
]}

Chang, Zhengshi ^{[1
]}

Zhang, Guan-Jun ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Elect Engn, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2017年 / 414卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Atmospheric pressure plasma jet; Epoxy resin; Surface modification; Flashover; POLYETHYLENE TEREPHTHALATE; INSULATORS; HYDROPHILICITY; FLUORINATION; CF4;

D O I：

10.1016/j.apsusc.2017.03.278

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

For enhancing the surface electric withstanding strength of insulating materials, epoxy resin (EP) samples are treated by atmospheric pressure plasma jet (APPJ) with different time interval from 0 to 300s. Helium (He) and tetrafluoromethane (CF4) mixtures are used as working gases with the concentration of CF4 ranging 0%-5%, and when CF4 is similar to 3%, the APPJ exhibits an optimal steady state. The flashover withstanding characteristics of modified EP in vacuum are greatly improved under appropriate APPJ treatment conditions. The surface properties of EP samples are evaluated by surface roughness, scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) and water contact angle. It is considered that both physical and chemical effects lead to the enhancement of flashover strength. The physical effect is reflected in the increase of surface roughness, while the chemical effect is reflected in the graft of fluorine groups. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：107 / 113

页数：7

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