Surface Modification of Cross-linked Polystyrene by CF<sub>4</sub> Plasma and Its Vacuum Surface Flashover Performance

WAN Fangchao; XU Feifan; WEI Wei; WANG Jun; ZHU Quanyao

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Surface Modification of Cross-linked Polystyrene by CF₄ Plasma and Its Vacuum Surface Flashover Performance

更新时间：2025-12-08

- Surface Modification of Cross-linked Polystyrene by CF₄ Plasma and Its Vacuum Surface Flashover Performance
- Vol. 44, Issue 12, Pages: 3857-3864(2018)
- 作者机构：
  
  武汉理工大学材料科学与工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 December 2018，
  
  Published：2018
- 稿件说明：
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WAN Fangchao, XU Feifan, WEI Wei, et al. Surface Modification of Cross-linked Polystyrene by CF₄ Plasma and Its Vacuum Surface Flashover Performance[J]. 2018, 44(12): 3857-3864.
DOI：

WAN Fangchao, XU Feifan, WEI Wei, et al. Surface Modification of Cross-linked Polystyrene by CF₄ Plasma and Its Vacuum Surface Flashover Performance[J]. 2018, 44(12): 3857-3864. DOI：

摘要

绝缘材料的真空沿面闪络性能是目前电气工程领域的研究热点

为此采用大气压介质阻挡放电技术

对交联聚苯乙烯（CLPS）进行CF

等离子体表面改性。通过静态水接触角、原子力显微镜（AFM）、X射线光电子能谱（XPS）等技术

分析改性前后CLPS的表面特性;同时测量改性前后的真空沿面闪络性能

讨论了表面微观形貌在纳米尺度上的变化及表面氟含量与闪络电压的关系。结果表明:CF

等离子体可以改变材料表面微观形貌并对表面进行氟化

使得CLPS真空沿面闪络电压提高50%以上。表面高度特征参数Ra随改性时间增加先增加后减小

引入氟以单氟接枝碳原子（C—F）的形式存在

纳米尺度下增加Ra以及在表面分子链中引入C—F键可提高CLPS真空沿面闪络电压。

Abstract

The vacuum surface flashover performance of insulators is the focus of electrical engineering. Consequently

we employed CF

plasma excited by a dielectric barrier discharge system for surface modification of cross-linked polystyrene（CLPS）. The surface properties of CLPS were investigated

including water contact angle measurements

surface morphology observation by atomic force microscopy（AFM）

and surface composition analysis by X-ray photoelectron spectroscopy（XPS）.Meanwhile

the flashover performance tests of CLPS were also carried out

the influence of nanoscale surface microtopography and surface fluorine were discussed. Results show that CF

plasma can change the surface morphology of the material and fluorinate the surface

and the flashover voltage of v

acuum surface of CLPS can be improved by more than 50% by this method. Surface microtopography parameters Ra of the sample first increases then decreases as the treatment time increases and the surface protuberance increases; fluoride groups are introduced into the material surface and mainly in the form of C—F. The increase of surface microtopography parameters Ra and the introduction of C—F bond lead to the increase of vacuum flashover voltage.

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Surface Modification of Cross-linked Polystyrene by CF4 Plasma and Its Vacuum Surface Flashover Performance

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Surface Modification of Cross-linked Polystyrene by CF₄ Plasma and Its Vacuum Surface Flashover Performance