How does rubber harden soften and have elasticity？

To soften and restore the elasticity of rubber, you can try the following methods:

Boil the rubber. Put the rubber in boiling water, let it soften fully, and then soak it in warm water for several hours, which will make the rubber soft and restore its elasticity.

Use oil. Soaking the rubber in vegetable or mineral oil allows the rubber to fully absorb the oil and helps to restore its softness and elasticity.

Use acetic acid. Soaking the rubber in 5% acetic acid for 1 to 2 hours, then rinsing it with water and drying it can effectively soften the rubber.

Microwave. Put the rubber in the microwave oven and heat it at medium-high heat for 3 to 5 minutes to make the rubber molecules vibrate and displace to achieve the softening effect.

Soak in warm water. Soaking the rubber in warm water helps restore the elasticity of the rubber pad. 346

Use professional rubber restorers. There are special rubber recovery agents on the market, such as rubber softeners and rubber maintenance agents, which can effectively repair aging and hardening rubber materials.

Heat treatment. For small areas of rubber products, heating treatment is taken to reduce the degree of cross-linking of molecular chains of rubber materials, so as to restore elasticity.

Physical and mechanical treatment. By stretching, bending and other physical means to increase the molecular chain spacing of rubber material to achieve softening effect. 2

Please choose the appropriate treatment method according to the actual situation to ensure the service life and effect of rubber products.