Styrene butadiene rubber (SBR), also known as
polystyrene butadiene copolymer. Its physical mechanism performance, processing performance and product performance are close to natural rubber, some properties such as wear resistance, heat resistance, aging resistance and vulcanization speed are better than natural rubber, and can be used with natural rubber and a variety of synthetic rubber, widely used in tires, tape, hose, wire and cable, medical equipment and various rubber products production fields. It is the largest general synthetic rubber variety and one of the earliest rubber varieties to achieve industrial production.