Effect of PDMS Concentration on the Flashover Voltage Improvement of Epoxy Resin by Plasma Modification

Jincheng Chu, Zhengbing Tian, Jiatao Ding, Zhaorui Luo, Pengfei Wei, Zijian Zhou, Xi Zhu, Zhi Fang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

With the increase of voltage level in power systems, epoxy resin, as a commonly used insulating material, is prone to surface flashover under strong electric field. Research has shown that the use of low-temperature plasma to deposit silicon-containing films on the material surface could effectively improve the flashover voltage. In this paper, through treating the epoxy resin (EP) surface with Ar/Polydimethylsiloxane (PDMS)/Surface Dielectric Barrier Discharge (SDBD), the influence of PDMS addition (5, 15, 25 mL/min) on the surface properties of EP was studied. The results showed that with the increase of PDMS concentration, the morphology of the deposited silicon-containing film on EP surface changed from discrete particles to agglomerated coral-like structures, and then to stacked particles. Surface water contact angle and electrical insulating properties both showed a trend of increasing first and then decreasing, and the best surface performance appeared at PDMS addition of 15 mL/min, where the flashover voltage and water contact angle were increased by up to 75.2% and 61.5%, respectively. The improvement of surface properties is associated with the deposited silicon-containing film, with the changing of physical morphology and chemical compositions.

Original languageEnglish
Title of host publicationProceedings of the 5th International Symposium on Plasma and Energy Conversion - iSPEC 2023
EditorsZhi Fang, Danhua Mei, Cheng Zhang, Shuai Zhang
PublisherSpringer Science and Business Media Deutschland GmbH
Pages275-286
Number of pages12
ISBN (Print)9789819722440
DOIs
StatePublished - 2024
Event5th International Symposium on Plasma and Energy Conversion, iSPEC 2023 - Nanjing, China
Duration: 27 Oct 202329 Oct 2023

Publication series

NameSpringer Proceedings in Physics
Volume398 SPP
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

Conference5th International Symposium on Plasma and Energy Conversion, iSPEC 2023
Country/TerritoryChina
CityNanjing
Period27/10/2329/10/23

Keywords

  • Electrical insulating properties
  • Film deposition
  • Reaction medium
  • Surface dielectric barrier discharge

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