The performance degradation of rubber gaskets under vibration compression is faster than that under static load, and the degree of performance degradation will continue to increase under humidity and thermal environment. For rubber gaskets under a long-term service, the mechanical properties of rubber gaskets were measured after accelerated aging process with different temperature in the temperature box. The precipitates of rubber structures were detected by energy-dispersive spectroscopy and scanning electron microscopy. Molecular chain of silicon rubber gasket quickly breaks to form free radicals under high-frequency stress, which initiate oxidation chain reaction and mechanochemical process. Surface leakage of silicon (Si) and magnesium (Mg) indicates that a larger percent of macromolecular chains are broken and decomposed. High temperature activates the molecular chain cracking or cross-linking, while high-frequency stress leads to transport leakage on chain decomposition. The oxygen diffusion rate and activation oxidation reaction were accelerated by the residual stress to rubber oxidation reaction rate.

橡胶垫圈在振动压缩下的性能下降比静态载荷下的性能下降快，并且在潮湿和热环境下性能下降的程度将继续增加。对于长期使用的橡胶垫圈，在温度箱中在不同温度下加速老化过程后，测量橡胶垫圈的机械性能。橡胶结构的沉淀物通过能量分散光谱法和扫描电子显微镜法检测。硅橡胶垫片的分子链在高频应力下迅速断裂形成自由基，从而引发氧化链反应和机械化学过程。硅（Si）和镁（Mg）的表面泄漏表明较大比例的大分子链断裂和分解。高温激活分子链的破裂或交联，而高频应力导致链分解时的运输泄漏。残余应力促进了橡胶的氧化反应速率，促进了氧的扩散速率和活化氧化反应。