What is PBR/SBR Polymer?
PBR (Polybutadiene Rubber) and SBR (Styrene-Butadiene Rubber) are synthetic rubber materials widely used in various applications due to their excellent properties.
PBR (Polybutadiene Rubber)
Composition: PBR is a polymer produced by the polymerization of butadiene, a colorless gas that is a byproduct of petroleum refining.
Properties: Known for high elasticity, flexibility at low temperatures, and excellent abrasion resistance.
SBR (Styrene-Butadiene Rubber)
Composition: SBR is a copolymer made from styrene and butadiene. The ratio of these two monomers can vary, resulting in different properties.
Properties: SBR exhibits good abrasion resistance and aging stability and is more cost-effective compared to natural rubber.
How are PBR and SBR Produced?
PBR Production
Polymerization Process: PBR is produced by anionic polymerization of butadiene. This process usually takes place in a solvent or emulsion.
Control of Conditions: Temperature, pressure, and catalysts are controlled to achieve the desired molecular weight and properties.
SBR Production
Emulsion Polymerization: SBR is typically produced by emulsion polymerization, where styrene and butadiene polymerize in an aqueous environment.
Composition Control: The styrene and butadiene ratio is adjusted to customize the rubber’s properties.
Applications of PBR and SBR
Common Uses:
Tires: Both PBR and SBR are widely used in tire manufacturing due to their durability and abrasion resistance.
Footwear: Used in shoe soles and other components to provide flexibility and comfort.
Industrial Products: Utilized in seals, gaskets, and various rubber products because of their excellent mechanical properties.
Adhesives and Coatings: Employed in adhesive and coating formulations due to their binding properties.
Conclusion
PBR and SBR polymers are critical materials in the rubber industry, offering a range of properties suitable for various applications. Their production methods allow customization, making them versatile for different industrial needs.

Why Minerva Polymer?
✅ Quality Guarantee: Reliable products that comply with international standards.
✅ Fast Supply: Fast delivery with a wide stock and strong logistics network.
✅ Technical Support: Technical consultancy specific to your production.
✅ Flexible Solutions: Virgin, compound and recycling options.
✅ Competitive Price: Sustainable business partnership at affordable prices.