As we all know, some rubber products will appear sticky and soft for a long time, and some will harden and be brittle. In daily life, we can see some cracks in the side of the old tire, which we call crack, this phenomenon belongs to the aging of rubber, and the original elasticity and strength of rubber are significantly reduced.

Aging of rubber products is the result of changes in rubber structure under the influence of various external factors, the most common of which is thermal oxygen aging under the action of heat and oxygen.

Although the aging of rubber products cannot be completely avoided, it can be delayed, and the most effective measure is to add antioxidants. Antioxidant can capture the active substances produced by the thermal oxygen aging process of rubber, thus playing a role in protecting rubber.