Raw rubber refers to rubber that has not undergone any processing.
Rubber is an elastomer that can or has been modified to be substantially insoluble (but swellable) in boiling solvents such as benzene, methyl ethyl ketone, and ethanol-toluene azeotropes.
The vulcanization of rubber is the last process of rubber processing. Under the action of a certain temperature, pressure and time, the rubber macromolecules are chemically reacted to produce cross-linking, so that the unvulcanized rubber material is transformed into a vulcanized rubber, thus giving the rubber various valuable properties. The physical properties make rubber a widely used engineering material.
A complete vulcanization system is mainly composed of vulcanizing agent, active agent and accelerator.
There are many types of raw rubber, depending on the source, there are natural rubber and synthetic rubber.
According to the scope of application and purpose, rubber is divided into two categories: general rubber (NR, BR, SBR, NBR, IIR, etc.) and special rubber (FPM, Q, PUR, AEM, T, CM, CSM, etc.).
According to the presence or absence of double bonds in the rubber molecular chain, it is divided into two categories: unsaturated rubber and saturated rubber, which can be directly processed.
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