The quality and characteristics of rubber-SKY Rubber

Rubber is one of the earliest polymer materials developed and applied. Its wide range of applications and diverse varieties have led to a relatively comprehensive set of technologies for the development of raw materials and products. It has played a vital role in economic development and people's daily lives, becoming an indispensable and important material .

Common rubber materials are divided into three categories: general rubber, special rubber, and natural rubber.

General rubber is divided into the following categories: ①Butyl rubber ( IIR) , a copolymer of isobutylene and a small amount of isoprene or butadiene; ②Chloroprene rubber ( CR ), a polymer made by emulsion polymerization of chloroprene as the monomer; ③Styrene -butadiene rubber ( SBR), a copolymer of butadiene and styrene; ④Butadiene rubber ( BR ), a cis-structure rubber made by polymerization of butadiene; ⑤Isoprene rubber ( IR ), a cis-structure rubber made by polymerization of isoprene monomer ; ⑥Nitrile -butadiene rubber ( NBR) , a copolymer of butadiene and acrylonitrile; ⑦Hydrogenated nitrile rubber ( HNBR) , a copolymer of butadiene and acrylonitrile; ⑧Ethylene - propylene rubber ( EPM / EPDM ) , a copolymer of ethylene and propylene, generally divided into EPDM ( ethylene propylene diene monomer ) and EPDM (ethylene propylene diene monomer).

Special rubbers are divided into: ① Silicone rubber, referred to as Q, silicone rubber is a special rubber with silicon and oxygen atoms in the main chain, among which the main role is played by silicon element; ② Fluororubber, referred to as FPM, is an organic elastomer copolymerized by fluorine-containing monomers; ③ Polyurethane rubber, referred to as AU/EU, is an elastomer polymerized by polyester (or polyether) and diisocyanate compounds; ④ Acrylate rubber, referred to as ACM/AEM, is a polymer of ethyl acrylate or butyl acrylate; ⑤ Chloroether rubber, referred to as CO/ECO, is a polymer homopolymerized by epichlorohydrin or copolymerized by epichlorohydrin and ethylene oxide ; ⑥ Chlorinated polyethylene rubber, referred to as CM or CPE, is an elastic polymer made by polyethylene through chlorine substitution reaction; ⑦ Chlorosulfonated polyethylene rubber, referred to as CSM, is an elastic polymer obtained after polyethylene is chlorinated and sulfonated.

Natural rubber, referred to as NR , is mainly composed of rubber hydrocarbon (polyisoprene) and contains a small amount of protein, water, resin acid, sugar and inorganic salts.