氟醚橡胶热空气/压缩载荷耦合老化行为与贮存寿命预测研究  

Study on Coupling Aging Behavior and Storage Life Prediction of Flurane Rubber under Hot Air/Compression Load

作　　者：刘俊邦 林觉列 唐庆云 LIU Jun-bang;LIN Jue-lie;TANG Qing-yun(Ceprei,Guangzhou 510610,Guangdong,China)

机构地区：[1]工业和信息化部电子第五研究所,广东广州510610

出　　处：《合成材料老化与应用》2024年第6期41-43,72,共4页Synthetic Materials Aging and Application

摘　　要：以温度为加速因子,在加速老化试验过程中对氟醚橡胶FM-2D施加压缩载荷,对其老化后的力学性能进行检测,并以红外光谱仪对橡胶的化学结构进行分析。结果表明,氟醚橡胶在高温和压缩载荷的耦合作用下,发生进一步交联使强度增大,随着试验温度和时间的增加,橡胶分子链段被破坏,力学性能产生劣化。在不同温度下,以压缩永久变形作为性能退化数据,采用阿伦尼乌斯方程构建氟醚橡胶的寿命预测模型,得到常温环境(25℃)的贮存寿命为19.6年。During the accelerated aging test,compression load was applied to flurane rubber FM-2D with the temperature as the accelerated factor.The mechanical properties and chemical structure of the rubber were studied after aging.The results indicaited that the high temperature and compression caused the further crosslinking of flurane rubber,which increased its strength.However,with the increase of test temperature and aging time,the molecular chain segments of rubber were destroyed and the mechanical properties deteriorated.With different accelerated stress levels,the life prediction model of flurane rubber was established by using Arrhenis equation,and the storage life was 19.6 years at a temperature of 25℃.

关 键 词：氟醚橡胶 压缩永久变形 贮存寿命 

分 类 号：TQ336[化学工程—橡胶工业]