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2. Nitrile rubber - Wikipedia

   en.wikipedia.org/wiki/Nitrile_rubber

   Nitrile rubber, also known as nitrile butadiene rubber, NBR, Buna-N, and acrylonitrile butadiene rubber, is a synthetic rubber derived from acrylonitrile (ACN) and butadiene. [1] Trade names include Perbunan, Nipol, Krynac and Europrene. This rubber is unusual in being resistant to oil, fuel, and other chemicals.

3. Ozone cracking - Wikipedia

   en.wikipedia.org/wiki/Ozone_cracking

   Nitrile rubber seals are commonly used in pneumatic systems because of its oil resistance. However, if ozone gas is present, cracking will occur in the seals unless preventative measures are taken. Environmental scanning electron microscope image of ozone cracks in NBR diaphragm seal formed at sharp corners in seal

4. Elastomer - Wikipedia

   en.wikipedia.org/wiki/Elastomer

   Butyl rubber (copolymer of isobutene and isoprene, IIR) Halogenated butyl rubbers (chloro butyl rubber: CIIR; bromo butyl rubber: BIIR) Styrene-butadiene rubber (copolymer of styrene and butadiene, SBR) Nitrile rubber (copolymer of butadiene and acrylonitrile, NBR), also called Buna N rubbers. Hydrogenated nitrile rubbers (HNBR) Therban and Zetpol

5. O-ring - Wikipedia

   en.wikipedia.org/wiki/O-ring

   Nitrile rubber (NBR, HNBR, HSN, Buna-N): a common material for o-rings because of its good mechanical properties, its resistance to lubricants and greases, and its relatively low cost. The physical and chemical resistance properties of NBR materials are determined by the acrylonitrile (ACN) content of the base polymer: low content ensures good ...

6. Nitrile - Wikipedia

   en.wikipedia.org/wiki/Nitrile

   The structure of a nitrile: the functional group is highlighted blue. In organic chemistry, a nitrile is any organic compound that has a −C≡N functional group.The name of the compound is composed of a base, which includes the carbon of the −C≡N, suffixed with "nitrile", so for example CH 3 CH 2 C≡N is called "propionitrile" (or propanenitrile). [1]

7. Two roll rubber mill - Wikipedia

   en.wikipedia.org/wiki/Two_roll_rubber_mill

   To create a rubber compound on a mill, first a raw polymer, or base polymer, is needed. The polymer can be a number of things, including natural rubber, such as of SMR CV, SMR 20, SMR L or a variety of synthetic rubbers such as nitrile (NBR), ethylene propylene diene monomer (EPDM), butyl, polycholorprene (CR), Polyisoprene (IR) and others.