Rubber sealing ring is a sealing product with good elasticity. In different media, small stress will produce large deformation. This deformation can provide contact pressure, fill the leakage gap and achieve the purpose of sealing.

Rubber sealing rings often age and fail during use. In addition to the operating conditions that cannot be changed, it is necessary to enhance the anti-aging performance of rubber sealing rings in production design.

Under the condition of repeated deformation, the rubber seal ring will crack, harden, stick, powder, tear strength decrease and other aging phenomena, which is called fatigue aging. Not only rubber seal rings, but also many rubber products in actual use also have fatigue aging, such as mobile phone accessories, shockproof rubber products, etc.

Therefore, when designing a rubber seal with good fatigue and anti-aging performance, the formula and process should be designed from the aspects of rubber type, cross-linking agent and curing system, filler, anti-aging agent, processing technology, etc. The design of the rubber seal anti-aging agent system is an effective way to improve the fatigue life of rubber. Its main function is to stabilize the rubber seal under fatigue state.