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SBR

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  • SBR
    • High-quality, low-cost abrasion and aging resistance for SBR rubber
    What is the SBR Rubber ?

    SBR rubber, known as Styrene-Butadiene Rubber, is a synthetic rubber made from the copolymerization of two monomers, styrene (Styrene) and butadiene (Butadiene).SBR rubber occupies an important position in the rubber industry due to its good overall performance, such as abrasion resistance, aging resistance, processability, and cost-effectiveness. Chemical structure and synthesis.

    Chemical structure and synthesis

    Monomer: The main monomers of SBR rubber include styrene (Styrene, S) and butadiene (Butadiene, B).

    Polymerization method: SBR rubber is usually synthesized by emulsion polymerization (E-SBR) or solution polymerization (S-SBR). SBR rubber produced by emulsion polymerization has good processability and abrasion resistance, while SBR rubber produced by solution polymerization has better cold resistance and elasticity.

    Polymerization initiators: Commonly used polymerization initiators include peroxides, azo compounds and so on.

    Chain transfer agents: In order to control molecular weight and molecular weight distribution, chain transfer agents are used in the polymerization process.

    Our CBD Seals SBR Compounds information：

    Abrasion resistance: SBR rubber has good abrasion resistance and is suitable for use in tires and other high wear applications.

    Ageing resistance: SBR rubber has good ageing resistance and is resistant to the effects of UV, ozone and thermal oxidation.

    Processability: SBR rubber has good processing properties and can be processed by extrusion, calendering and injection molding.

    Cost-effectiveness: SBR rubber has a relatively low production cost and is an economical and practical synthetic rubber.

    Mechanical properties: SBR rubber has good tensile strength, tear strength and abrasion resistance.

    Low Temperature Properties: S-SBR rubber has good low temperature properties and can maintain flexibility at lower temperatures.

    Processing and vulcanization

    Processing method: SBR rubber can be processed by traditional rubber processing methods such as extrusion, calendering, injection molding and molding.

    Vulcanization: The vulcanization of SBR rubber usually uses sulfur, peroxide or metal oxides as vulcanizing agents. During vulcanization, the vulcanizing agent reacts with the rubber molecular chains to form a cross-linked network.

    Areas of application

    Tire industry: SBR rubber is one of the most commonly used synthetic rubbers in tire manufacturing, and is used in the production of tire treads, sidewalls and other components.

    Rubber products: used in the manufacture of hoses, tapes, seals, gaskets and other rubber products.

    Footwear Manufacturing: Used in the manufacture of soles for sports shoes, work shoes, etc.

    Industrial applications: Used in the manufacture of wear-resistant and ageing-resistant industrial rubber parts.

    Sustainability

    Recycling: SBR rubber can be recycled and reused to reduce the impact on the environment. Some advanced recycling technologies can convert waste SBR rubber into new rubber products or other useful materials.

    SBR rubber excels in a wide range of industrial applications due to its cost-effectiveness, good mechanical properties, processability and ageing resistance, although it is not as good as some high-performance rubbers in terms of oil and temperature resistanc.

    SBR rubber is superior to NBR in terms of cost-effectiveness and processability, but inferior to NBR in terms of oil, chemical and low temperature resistance.