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环保型绝缘混合气体CFSOF/N与三元乙丙橡胶和氯丁橡胶材料相容性的实验研究

Experimental Study of Compatibility between the Eco-friendly Insulation Mixed Gas CFSOF/N and EPDM and CR Materials.

作者信息

Liu Wei, Zheng Yu, Zhang Wenliang, Ma Fengxiang, Tao Zilin, Guo Yuzheng, Zhou Wenjun

机构信息

State Grid Anhui Electric Power Research Institute, Hefei 230000, China.

State Key Laboratory of Power Grid Environmental Protection, Wuhan University, Wuhan 430072, China.

出版信息

ACS Omega. 2024 Feb 6;9(7):7958-7966. doi: 10.1021/acsomega.3c07958. eCollection 2024 Feb 20.

DOI:10.1021/acsomega.3c07958
PMID:38405544
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10882663/
Abstract

As a greenhouse gas with strong global warming potential, the use of SF needs to be reduced as much as possible. Researching environmentally friendly insulation (EFI) gases to replace SF in power electrical equipment is an effective way to reduce its usage. CFSOF/N, as a newly proposed EFI gas, has certain potential to replace SF. Compatibility of CFSOF/N gas with rubber sealing materials commonly used in electrical equipment is still unknown. In this article, the compatibility of CFSOF/N with the ethylene-propylene-diene monomer (EPDM) and chloroprene rubber (CR) was investigated experimentally. It was found that CFSOF/N would slightly decompose under the influence of EPDM and CR rubber under certain conditions. The surface morphology of EPDM changed slightly under the influence of CFSOF/N, and it was similar to the influence of SF. While the surface morphology of CR deteriorated significantly with obvious defects. The mechanical properties of EPDM were not significantly affected by CFSOF, which is similar to the influence of SF. But CR was affected greatly by CFSOF gas. Permanent deformation compression and surface morphology are two effective indicators for characterizing the compatibility between gas and rubber sealing materials. This research provides a reference for the application of CFSOF/N as a new EFI gas in power equipment.

摘要

作为一种具有强大全球变暖潜能的温室气体，需要尽可能减少六氟化硫（SF）的使用。研究用于电力电气设备中替代六氟化硫的环保绝缘（EFI）气体是减少其使用量的有效途径。CFSOF/N作为一种新提出的环保绝缘气体，具有一定替代六氟化硫的潜力。CFSOF/N气体与电气设备中常用橡胶密封材料的兼容性尚不清楚。本文通过实验研究了CFSOF/N与三元乙丙橡胶（EPDM）和氯丁橡胶（CR）的兼容性。发现CFSOF/N在一定条件下会在EPDM和CR橡胶的影响下轻微分解。EPDM的表面形态在CFSOF/N的影响下略有变化，这与六氟化硫的影响相似。而CR的表面形态则显著恶化，出现明显缺陷。EPDM的力学性能未受到CFSOF的显著影响，这与六氟化硫的影响相似。但CR受到CFSOF气体的影响较大。永久变形压缩和表面形态是表征气体与橡胶密封材料之间兼容性的两个有效指标。本研究为CFSOF/N作为一种新型环保绝缘气体在电力设备中的应用提供了参考。

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本文引用的文献

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A Priori Theoretical Model for Discovery of Environmentally Sustainable Perfluorinated Compounds.用于发现环境可持续全氟化合物的先验理论模型。
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