نوشته شده توسط admin_ghaemi
24 Oct 2022
0

Chloroprene Rubber ( CR )

CR

Chloroprene Rubber ( CR )

Chloroprene was one of the first successful synthetic elastomers in1931 made by Dupont, and the trade name is Neoprene . It is prepared by emulsion polymerization of chloroprene, or 2 – chlorobutadiene. CR is a multi – purposed elastomer which yields a balanced combination of properties. It has good resistance to sun, ozone, weather and performs well in contact with oils and many chemicals. It also displays outstanding physical toughness and good resistance to fire.

Cure system – Metal oxide cured

Standard CRs are metal oxides & organic accelerators.

Other Common Variations:

►Chloroprene has been used in thousands of diverse environment, including automotive wire and cable industries.

►CR is usually used in air condition system, especially old refrigerated media like R12 or R22 and lubricant with mineral oil.

Performs Well In…

►Refrigerants

►Ammonia

►Water

►Silicone grease and oil

►High aniline point mineral oil

Doesn’t Perform Well In…

►Aromatic hydrocarbons

►Ketones

►Esters

►Ethers

►Strong oxidizing acids

►Chlorinated hydrocarbons