What kind of plastic is SBS?
At present, my country’s SBS production capacity is 210,000 tons per year, while the domestic market demand has exceeded 350,000 tons. The domestic market has a large gap and the products have Good market development prospects.
SBS plastic usually refers to butadiene and styrene as monomers, cyclohexane as solvent, n-butyllithium as initiator, and tetrahydrofuran as activation As a coupling agent, silicon tetrachloride is a high molecular polymer prepared by anionic polymerization. Styrene-butadiene-styrene block copolymer (SBS) has the advantages of high tensile strength, large friction coefficient, good low temperature toughness, excellent electrical properties, and easy processing. It is currently the largest output of styrene thermoplastic elastomer , The lowest cost, most widely used product, known as the "third-generation synthetic rubber".
Most pure SBS polymer compounds usually have higher viscosity and are difficult to process. Usually, processing oil is added to SBS to reduce the viscosity of SBS. Improve its processing performance. SBS is compatible with polypropylene PP, and the blending effect of the two is good. Adding polystyrene to SBS can improve the wear resistance of the blended material. In addition, blending of SBS and rubber materials can improve the toughness and tensile strength of the material. SBS blended modified material is also called TPR, and it is basically called this in China. Customers in some foreign countries in Europe and the United States have different calling habits. What they call SBS material or SBS compound sometimes refers to blended modified SBS, that is The domestic TPR material.