Product Information
Nitrile Rubber is mainly used in the manufacture of oil-resistant Rubber Products
NBR seals, also called Nitrile seals. NBR is made from butadiene and acrylonitrile by emulsion polymerization. NBR is mainly produced by low temperature emulsion polymerization method, which has excellent oil resistance, high abrasion resistance, good heat resistance and strong adhesive force. Its disadvantages are poor low-temperature resistance, poor ozone resistance, poor insulation properties, slightly lower elasticity. Nitrile rubber is mainly used in the manufacture of oil-resistant rubber products. Abbreviated as NBR, it is a synthetic rubber made by copolymerizing butadiene and acrylonitrile. It is a synthetic rubber with good oil resistance (especially alkane oil) and aging resistance. The acrylonitrile content (%) of NBR is 42-46, 36-41, 31-35, 25-30, 18-24 and so on. The more acrylonitrile content, the better the oil resistance, but the cold resistance decreases accordingly. It can be used in air at 120℃ or in oil at 150℃ for a long time. In addition, it has good water resistance, airtightness and excellent bonding properties. Widely used in the production of a variety of oil-resistant rubber products, a variety of oil-resistant gaskets, gaskets, casing, flexible packaging, flexible hose, printing and dyeing rubber rollers, cable rubber materials, etc., in the automotive, aerospace, petroleum, photocopying and other industries to become an essential elastic material.
NBR seals have excellent oil resistance. NBR monomers can be copolymerized into three different chain structures: cis, trans and 1,2-yaki. Typical NBR structure is about 78% trans. Due to the presence of cyano groups in the molecular chain structure of NBR, the oil resistance (e.g. to mineral oils, liquid fuels, animal and vegetable oils and solvents) is superior to that of Natural Rubber, neoprene and styrene butadiene rubber. Compared with other rubbers, NBR has a wider range of service temperature, its long-term service temperature is 120oC, at the same time, NBR has good low temperature resistance, the lowest glass transition temperature can reach -55℃.
Company information
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（1）Catalysts And Auxiliaries：The catalyst is the active component that really acts as a catalyst and reduces the activation energy of the reaction. The additives, on the other hand, are auxiliary components, either structural additives or electronic additives, which can improve the stability of the catalyst, while the electronic additives can modulate the electronic properties of the catalyst.Our main Catalysts and Additives products include Plastic Additives、Water Treatment Agent.
（2）Polymers：Polymerisation is the process by which the repeating units that make up a polymer are linked together by covalent bonds.Polymers can exist in different states depending on the phase, conformation and arrangement of their molecular chains. The two main states are amorphous and crystalline. Polymers usually exist in a semi-crystalline form in which amorphous and crystalline phases coexist.
