Chloroprene rubber (CR, Chloroprene rubber), also known […]
Chloroprene rubber (CR, Chloroprene rubber), also known as neoprene rubber, Xinping rubber, is chloroprene (ie 2-chloro-1,3-butadiene) as the main raw material for α-polymerization .
It was first produced by DuPont's Wallace Hume Carothers on April 17, 1930. DuPont publicly announced in November 1931 that it had invented neoprene, and in 1937 Formally launched to the market, making neoprene the first synthetic rubber variety to be industrialized.Custom Rubber Gaskets Suppliers
The appearance is milky white, beige or light brown flakes or lumps, density 1.23-1.25g / cm3, glass transition temperature −40-50 ° C, crushing point −35 ° C, softening point about 80 ° C Decomposes at 230-260 ° C. It is soluble in organic solvents such as chloroform and benzene. It swells in vegetable oils and mineral oils and does not dissolve.
It has good physical and mechanical properties, oil resistance, heat resistance, flame resistance, sunlight resistance, ozone resistance, acid and alkali resistance, and chemical resistance. The disadvantage is poor cold resistance and storage stability.