Styrene butadiene rubber (SBR), also known as polystyrene butadiene copolymer. Its physical structure performance, processing performance, and product usage performance are similar to natural rubber. Some properties such as wear resistance, heat resistance, aging resistance, and vulcanization speed are better than natural rubber. It can be used in combination with natural rubber and various synthetic rubbers, and is widely used in the production of tires, tape, rubber pipes, wires and cables, medical equipment, and various rubber products. It is the largest universal synthetic rubber variety, It is also one of the earliest rubber varieties to achieve industrial production.
Cis-1,4-polybutadiene rubber is an abbreviation for cis-1,4-polybutadiene rubber, with the molecular formula (C4H6) n. Polybutadiene rubber is a structured synthetic rubber formed by polymerization of butadiene, with a cis structure content of over 95%. According to the different catalysts, they can be divided into nickel based, cobalt based, titanium based, and rare earth based (neodymium based) butadiene rubber. Polybutadiene rubber is the second largest synthetic rubber after styrene butadiene rubber. Compared with natural rubber and styrene butadiene rubber, after vulcanization, its cold resistance, wear resistance, and elasticity are particularly excellent, with less heat generation under dynamic load and good aging resistance. It is easy to be used in combination with natural rubber, chloroprene rubber, or nitrile rubber. Cis-1,4-polybutadiene rubber is particularly suitable for manufacturing automotive tires and cold resistant products. It can also be used to manufacture cushioning materials, as well as various types of rubber shoes, tapes, tape, and sponge rubber