What are the causes of cracks in vulcanized rubber products?
The curing temperature is too high, pocket, self adhesive rubber products of poor liquidity
Vulcanized rubber refers to vulcanized rubber, has the characteristics of constant viscosity, not easy to break, and rubber products are mostly made of this kind of rubber. Also known as "mature rubber", commonly known as rubber or rubber. Vulcanized rubber is a polymer compound, its monomers are CIS poly butadiene monomer -CH2-CH=CH=CH2- 1, 3- in the double bonds were open to the -S-S- curing agent, will connect the linear structure of polybutadiene rubber mesh structure.
When vulcanized rubber products are cracked, it shows that high sulfidation temperature, poor material flow, short scorch time, and partial scorch of rubber compound cause cracks.
1. Add some oil, 2. And reduce accelerator or vulcanizing agent 3., reduce the sulfidation temperature 4. After complete cooling
