Types of rubber

Types of rubber

Differences in the production of synthetic  rubber and natural rubber

Synthetic rubbers are obtained by polymerizing various petrochemicals known as monomers. Some examples are: Sterin butadiene rubber (SBR) obtained by cross-polymerization of strain and butadiene, Butyl rubber (IIR) which is a synthetic rubber obtained by polymerization of isobutylene with isoprene, NB nitrile rubber Which is an oil-resistant synthetic rubber obtained from the polymerization of alkyl nitrile and butadiene, and neoprene produced by chloroprene polymerization. Natural rubber is obtained from raw rubber, which is drawn mostly from the sap of Hoya brasiliensis. An incision is made in the bark of the tree and the raw rubber is collected in a cup or pot, then filtered, washed and allowed to react with an acid to freeze the rubber particles and form a mass. The rubber is then compressed into molds and dried. It then goes to the next stages of production in the industry to be reformed.

Differences in the properties of synthetic rubber and natural rubber

Synthetic rubbers are more resistant to oil, oil, specific chemicals and oxygen, have better life and weather characteristics, and have good flexibility over a wide temperature range. Natural tires have good wear resistance, high elasticity, high flexibility and good tensile strength. It has good dynamic performance and low damping level. But over time, it ages and has poor chemical, oily, and ozone resistance. As the temperature increases, its resistance decreases.

Aging properties , low temperature flexibility and abrasion resistance

Butadiene strain is one of the cheap and general- propose synthetic rubbers that has less physical strength flexibility and low temperature properties. But its aging properties and abrasion resistance are better than other natural tires. Unlike natural rubber, this material hardens over time instead of softening. Natural tires have good physical strength, flexibility and low temperature properties, but have low wear resistance and aging properties compared to butadiene strain. Its low temperature properties are lower compared to nitrile. 

Oil resistance and flexibility

Nitrile has oil and oil resistance, low temperature flexibility, abrasion resistance and better flexibility than natural rubber. It also has lower gas permeability. Natural rubber has lower oil and oil resistance and flexibility than nitrile. But it has better physical strength.

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