Theoretically, the internal molecular structure of rubber and rubber products will change during the process of thermo-oxidative aging, which can be roughly divided into two categories. One is the thermo-oxidative aging reaction dominated by molecular chain degradation, namely cracking; The thermo-oxidative aging reaction dominated by cross-linking between molecular chains is called structuring. Different types of rubber have different thermo-oxidative aging phenomena, but they will all lead to early loss of performance of rubber products.
It can be said that rubber products occupy an important position in the modern market. After long-term use of rubber products in various environments, its performance will inevitably undergo some changes, resulting in cracks, tearing, and breaking of rubber products, which affect people's lives. But in general, rubber products still have a longer service life and better performance than parts made of other materials. Even so, regular maintenance is required.
Because the use environment of sealing rubber parts is different, some people replace rubber products with substitutes, so that the environment that rubber products should have changes, resulting in changes in rubber instinct, so its service life will also change.
