Effect of Methyl Hydro-Silicone Oil Content and Aging Time on Compression Modulus and Breakdown Strength of Additional Liquid Silicone Rubber Gel

Author:

Wang Kun1,Chen Yun1ORCID,Yang Wei1,Qiao Bo1,Qiao Jian1,He Jianfei1,Ning Qinying2

Affiliation:

1. Beijing Institute of Smart Energy, Beijing 102209, China

2. School of New Energy, North China Electric Power University, Beijing 102206, China

Abstract

The performance of silicone rubber gel elastomers is affected by the composition and structure of the crosslinker. In this work, a two-component addition liquid silicone rubber gel material was developed, and the effects of the contents of two methyl hydro-silicone oils on the compression modulus and breakdown strength of the silicone rubber gel insulating material, as well as the performance change after hot air aging at different times (24 h, 48 h, 72 h, 96 h, 120 h, 144 h, 168 h), were studied. The results showed that the breakdown strength and compression modulus exhibited an upward trend with the increase in the hydrogen silicone oil content. The best performance was achieved in the silicone rubber gel with Si-H:Si-Vi = 1.4:1. Moreover, with the increase in aging time, the breakdown strength decreased and the compression modulus increased.

Funder

Science and Technology Project of SGCC

Publisher

MDPI AG

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