How to distinguish between raw rubber and cooked rubber

24/02/2022
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Vulcanized rubber refers to raw or compounded rubber. Rubber can be divided into general rubber and special rubber according to the purpose.
General rubber includes: natural rubber, butadiene rubber, styrene butadiene rubber, isoprene rubber.
Special rubbers include: fluorine rubber, acrylate rubber, chlorosulfonated polyethylene, chlorinated polyethylene, silicone rubber, polyether rubber, polyhydroester rubber, etc. They are often used in harsh or special conditions and have high use value. According to the properties of various rubbers, the scope of use is different. For example, natural rubber can be used for tires, pipe belts, rubber shoes, etc.

Raw rubber is unvulcanized rubber with various additives and fillers added, and cooked rubber is vulcanized rubber.
The biggest difference between raw rubber and cooked rubber is that raw rubber is smaller than cooked rubber in terms of tensile strength and resilience, and the surface of raw rubber is rough while cooked rubber is generally smoother.