According to the synthesis conditions (including monomer shape, medium state), the polymerization of synthetic rubber can be divided into four processes: bulk polymerization, gas phase polymerization, emulsion polymerization and solution polymerization. The bulk polymerization has the advantages of high purity, no degassing, dehydration and no treatment, but it is difficult to dissipate heat and has […]

Liquid rubber is named for its liquid state. The earliest liquid rubber in history appeared in 1923, which was obtained by the degumming of natural rubber. This practice consumes a lot of energy and is not practical. By 1943, there was a real, synthetically prepared liquid rubber, namely polysulfide rubber. Soon after, liquid polyurethane (PU) […]

Gel, also known as jelly, refers to a transparent jelly obtained by gelation of a lyophilic sol and a sputum sol. A typical example is gelatin. Although a large amount of liquid is present inside the gel, fluidity is lost. The so-called gel in rubber refers to a solvent-insoluble jelly present in the solid dry […]

Butyl rubber is a low-unsaturated (unsaturated 1% to 3%) synthetic rubber made by copolymerization of isobutylene and a small amount of isoprene. It is widely used in the manufacture of inner tubes, radial tire inner liners, sealing products and shock absorbing products due to its high air tightness, high damping and heat resistance. However, there […]