The aging problem of rubber seals has always been a difficult problem in the industry of seals. At present, rubber is still widely used in the industry of seals, so it is very important to solve the aging problem of rubber for the development of the industry of seals. At the same time, the aging problem is the most important factor affecting the sealing performance of the sealing strip.

The aging of rubber mainly refers to the phenomena of cracking, hardening, discoloration and cracking of watchcloth during the use or storage of rubber.

The main factors affecting the aging of sealing strip are natural environment. First, the influence of air components such as oxygen, ozone, etc. The main reason is that the molecular chain of rubber is broken due to the occurrence of oxidation reaction. However, the influence of ozone and oxygen is different, and ozone oxidation is more destructive. Secondly, the influence of light and water is the key factor to accelerate aging. Water in air is the necessary condition to soften rubber, and light is the main factor to promote its discoloration. Long-term sunlight exposure can easily soften rubber deformation. Thirdly, the influence of temperature and temperature on rubber is relatively large, mainly in the cold winter will harden the rubber seriously, which will lead to rubber fracture, hot summer will soften the rubber.

The above points are the main factors that promote the aging of rubber seals, so in the maintenance of seals, we should mainly start from the above aspects of waterproof, air isolation and thermal insulation.