Chemical composition of natural rubber


Through the analysis of the chemical composition of nat […]

Through the analysis of the chemical composition of natural rubber, it was found that its basic composition is isoprene. Inspired people to use isoprene as a monomer for polymerization, resulting in a synthetic rubber called isoprene rubber. Isoprene rubber basically has the same structure and properties as natural rubber. Since isoprene was available only from turpentine oil at the time, the source of raw materials was limited, and butadiene was abundant in origin, so a series of synthetic rubbers was developed based on butadiene. Such as butadiene rubber, styrene butadiene rubber, motorcycle rubber parts,nitrile rubber and neoprene and so on.

With the development of the petrochemical industry, various gases such as ethylene, propylene, butylene, isobutylene, butane, pentene, isoprene, etc. can be obtained from the field gas and refinery gas through high-temperature cracking and separation purification. Good raw material for synthetic rubber.

In the world rubber production, natural rubber accounts for only about 15%, and the rest is synthetic rubber. Synthetic rubber has a wide variety of different properties and can replace or even exceed natural rubber in many applications. Synthetic rubber can be divided into general rubber and special rubber. A large amount of general rubber, such as styrene-butadiene rubber accounts for 60% of the output of synthetic rubber; followed by butadiene rubber, accounting for 15%; in addition there is isoprene rubber, neoprene rubber, Buna rubber, ethylene propylene rubber, butyl rubber And so on, they are universal rubber.