硅橡胶密封材料在电解水环境中的老化寿命研究  

Study on the aging life of silicone rubber sealing materials in electrolytic water environment

作　　者：王玥 王毅 刘相[1] 钱鸿昌 赵丕盛[1] Wang Yue;Wang Yi;Liu Xiang;Qian Hongchang;Zhao Pisheng(China astronaut research and training center,Beijing 100094,China;University of Science and Technology Beijing,Institute for Advanced Materials and Technology,Beijing Advanced Innovation Center for Materials Genome Engineering,Beijing 100083,China)

机构地区：[1]中国航天员科研训练中心,北京100094 [2]北京科技大学新材料技术研究院北京材料基因工程高精尖创新中心,北京100083

出　　处：《航天医学与医学工程》2024年第6期337-340,共4页Space Medicine & Medical Engineering

基　　金：飞天科研基金(极端环境条件下非金属材料选型及介质相容性研究)。

摘　　要：为了评估硅橡胶密封材料在电解水环境中的老化寿命,以压缩永久变形率为密封圈的性能变化参数,开展G146、G199和6144等3种典型硅橡胶材料在电解水环境中的老化试验,利用阿伦尼乌斯方程对老化数据进行统计分析,建立压缩永久变形保留率与时间的老化动力学方程,并对硅橡胶密封材料在25℃的老化寿命进行预测。计算结果表明,硅橡胶G146、G199、6144密封材料在25℃时的老化寿命为21.3 a、9.8 a和12.0 a。试验结果为确定该密封材料的维修周期提供了参考依据。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.

关 键 词：硅橡胶 电解水 压缩永久变形率 老化寿命 

分 类 号：TQ3[化学工程]