Study on the aging life of silicone rubber sealing materials in electrolytic water environment
10.16289/j.cnki.1002-0837.2024.06001
- VernacularTitle:硅橡胶密封材料在电解水环境中的老化寿命研究
- Author:
Yue WANG
1
;
Yi WANG
;
Xiang LIU
;
Hongchang QIAN
;
Pisheng ZHAO
Author Information
1. 中国航天员科研训练中心,北京 100094
- Keywords:
silicone rubber;
electrolytic water;
compression permanent distortion;
aging life
- From:Space Medicine & Medical Engineering
2024;35(6):337-340
- CountryChina
- Language:Chinese
-
Abstract:
To evaluate the aging life of silicone rubber sealing materials in the electrolytic water environment,the compression permanent distortion was taken as the performance change parameter of the sealing ring.Three typical silicone rubber materials,G146,G199,and 6144,were subjected to aging tests in the electrolytic water.The aging data was analyzed by the Arrhenius equation.And the aging kinetics equation of permanent compression deformation retention rate and temperature time was established,the aging life of silicone rubber sealing materials at 25℃was predicted.The results indicate the aging life of G146,G199,and 6144,was 21.3 a,9.8 a,and 12.0 a respectively.These prediction results provide a reference for determining the maintenance cycle of the sealing material.
