Experimental Study on SF<sub>6</sub> Gas Permeation Characteristics of Rubber Sealing Materials

ZHAO Yaohong; QIAN Yihua; CHEN Tiansheng; ZHANG Li; FAN Shengping

doi:10.13296/j.1001-1609.hva.2019.10.020

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Experimental Study on SF₆ Gas Permeation Characteristics of Rubber Sealing Materials

更新时间：2025-04-26

- Experimental Study on SF₆ Gas Permeation Characteristics of Rubber Sealing Materials
- High VoltageApparatus Vol. 55, Issue 10, Pages: 116-120+127(2019)
- 作者机构：
  
  1. 广东电网有限责任公司电力科学研究院
  2. 西安交通大学电气设备电气绝缘国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.10.020
  CLC： TM21
- Published：2019
- 稿件说明：
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[1]赵耀洪,钱艺华,陈天生,张丽,范圣平.SF_6气密封橡胶材料气体渗透特性研究[J].高压电器,2019,55(10):116-120+127.

ZHAO Yaohong, QIAN Yihua, CHEN Tiansheng, et al. Experimental Study on SF₆ Gas Permeation Characteristics of Rubber Sealing Materials[J]. High voltageapparatus, 2019, 55(10): 116-120+127.
[1]赵耀洪,钱艺华,陈天生,张丽,范圣平.SF_6气密封橡胶材料气体渗透特性研究[J].高压电器,2019,55(10):116-120+127. DOI： 10.13296/j.1001-1609.hva.2019.10.020.

ZHAO Yaohong, QIAN Yihua, CHEN Tiansheng, et al. Experimental Study on SF₆ Gas Permeation Characteristics of Rubber Sealing Materials[J]. High voltageapparatus, 2019, 55(10): 116-120+127. DOI： 10.13296/j.1001-1609.hva.2019.10.020.

摘要

橡胶密封材料的性能对电气设备运行可靠性有重要的影响。文中通过老化试验

研究三元乙丙橡胶、丁腈橡胶、氟橡胶、氟硅橡胶和丙烯酸酯橡胶的透气性差异及变化特性

并利用模拟橡胶在使用过程中的气封环境装置

比较橡胶老化后的气密性。结果表明:丁腈橡胶、氟橡胶、氟硅橡胶、三元乙丙橡胶和丙烯酸酯对SF

气体透气系数不同

丁腈橡胶透气系数最小

氟硅橡胶最大;丁腈橡胶、氟橡胶、氟硅橡胶、三元乙丙橡胶和丙烯酸酯橡胶热空气老化后透气系数变化有较大差异

其中丁腈橡胶、氟硅橡胶、三元乙丙橡胶和氟橡胶的透气系数老化后变小

而丙烯酸酯橡胶的透气系数变大;利用自制的模拟橡胶密封圈气密性的装置测得三元乙丙橡胶的耐老化时间最长

丙烯酸酯橡胶老化后出现漏气的时间最短。研究结果为充SF

气体的电力设备的橡胶密封材料选型提供参考依据。

Abstract

We studied the differences of SF

gas permeability and the variation features of EPDM rubber

nitrile rubber

fluorine rubber

fluorosilicone rubber and acrylic rubber via ageing experiment. Also

we set up a device for simulating usage scenario of rubber to investigate the gas permeability. According to the experiment results

some conclusions can be drawn as follows: ① SF

gas permeation coefficients of EPDM rubber

nitrile rubber

fluorine rubber

fluorosilicone rubber and acrylic rubber are different — nitrile rubber has the minimum and fluorosilicone rubber has the maximum;② the variations o

f permeation coefficients are also different — the permeation coefficient of acrylic rubber becomes bigger after ageing

and the permeation coefficients of the other rubbers become smaller;③ the sealing performance of EPDM rubber is the best

and acrylic rubber is the worst. This study may provide reference for selection of rubber sealing materials in the power equipment filled with SF

gas.

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Experimental Study on SF6 Gas Permeation Characteristics of Rubber Sealing Materials

DOI：10.13296/j.1001-1609.hva.2019.10.020

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Experimental Study on SF₆ Gas Permeation Characteristics of Rubber Sealing Materials