Styrene-Butadiene Rubber Applications And Properties

Styrene-butadiene rubbers are the most impotant elastomer material in polymer chemistry. It has specific properties and because of these properties, these materials are used in various kinds of engineering applications. In here, we will state these properties and applications of styrene-butadiene rubber.

What Are The Properties Of Styrene-Butadiene Rubbers?

Styrene-butadiene rubber flooring application.

As you understand from its name, styrene-butadiene rubber is the copolymer butadiene and styrene. It has the biggest market share around other elastomers, which is reaching up to 40% of total market share. Styrene-butadiene rubber is produced alternative to natural rubber in WW2 by Germans. The most attractive property of styrene-butadiene rubber is the low cost. It can be reinforced with vulcanization process with carbon black. With that process, styrene-butadiene rubber has similar properties with natural rubber.

Mechanical properties of styrene-butadiene rubber is lower than natural rubber. But wear resistance and resistance to heat, ozone and water is superior.

General applications that styrene-butadiene is used in are; automobile tyres, wire insulation and footwear.

  • Properties of styrene-butadiene rubber: Symbol of styrene-butadiene rubber is ‘SBR’ in market. We stated that it is a copolymer of styrene and butadiene which have chemical representations C8H8 and C4H6 respectively. Elongation of styrene-butadiene rubber at failure is around 700% according to its original shape. Tensile strength of styrene-butadiene rubber is 20 MPa. Modulus of elasticity is 17 MPa. Service temperature range of styrene-butadiene rubber is between -50C and 110C.
Chemical structure of styrene-butadiene rubber copolymer.

These are the general characteristics of styrene-butadiene rubber. Do not forget to leave your comments and questions about properties and applications of styrene-butadiene rubber below. Your precious feedbacks are very important for us.

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