- Butadiene-acrylonitrilecubber is a copolymer of butadiene and acrylonitrile obtained by emulsion polymerization, called butadiene-propylene cross rubber, referred to as butadiene rubber, code-named NBR. Nitrile rubber, there are two kinds of high temperature emulsion polymerization (25-50 ℃) and low temperature emulsion polymerization (5-20 ℃). At present, low temperature emulsion polymerization is mainly adopted. Nitrile rubber is known for its excellent oil resistance. As an oil-rubber, it is widely used in the manufacture of oil-resistant products such as hoses, tapes, capsules, sealing products, gaskets, etc. In addition, it also has the characteristics of aging resistance, wear resistance, low air permeability and high cohesion.
- Nitrile rubber is divided into general nitrile rubber and special nitrile rubber according to the scope of application. General-purpose nitrile rubber mainly refers to butadiene-acrylonitrile binary copolymer, which is widely used. Special nitrile rubbers include terpolymers that introduce third monomers such as hydroxynitrile, poly-stabilized nitrile rubber, partially cross-linked nitrile rubber, nitrile rubber, hydrogenated nitrile rubber, nitrile rubber and polychloroethylene Ethylene blends as well as liquid rubber and powder rubber, etc.