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Understanding Styrene-Butadiene Rubber (SBR): The Most Widely Used Synthetic Rubber in Industrial Applications

Posted on24 October 2025

Styrene-butadiene rubber (SBR) is the world's most widely produced and applied synthetic rubber. Copolymerized from styrene and butadiene, it offers outstanding comprehensive properties and serves as a key material for various rubber products including tires, shoe soles, and hoses.



Based on polymerization methods, it is categorized into emulsion-polymerized styrene-butadiene rubber (E-SBR) and solution-polymerized styrene-butadiene rubber (S-SBR). E-SBR, with its mature process and low cost, is widely used in standard tires and industrial products. S-SBR offers controllable structure, superior abrasion resistance, and reduced rolling resistance, making it suitable for high-performance green tires.


Its performance advantages include:

Outstanding abrasion resistance, particularly in S-SBR;

Superior aging resistance compared to natural rubber;

Excellent processability and blendability;

Wide raw material sources and stable costs.


Primary applications include tires (tread and sidewalls), automotive seals, shock-absorbing products, conveyor belts, and shoe soles. Amid the green transition trend, S-SBR enables structural designs that effectively reduce tire rolling resistance and enhance fuel economy, making it a key material for new energy vehicle tires.

 

Understanding Styrene-Butadiene Rubber (SBR): The Most Widely Used Synthetic Rubber in Industrial Applications

Styrene-butadiene rubber (SBR) is the world's most widely produced and applied synthetic rubber.

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