Nitrile butadiene rubber (NBR) is a highly saturated elastomer obtained by special hydrogenation of NBR. Hydrogenated nitrile butadiene rubber has good oil resistance (good resistance to fuel oil, lubricating oil and aromatic solvent). And because of its highly saturated structure, it has good heat resistance (-60 to 180 degrees), excellent chemical corrosion resistance (good resistance to freon, acid, alkali), excellent ozone resistance, high compression resistance permanent deformation performance; At the same time, hydrogenated nitrile butadiene rubber also has the characteristics of high strength, high tear performance and excellent abrasion resistance.

1. Firstly, nitrile butadiene rubber is prepared by emulsion polymerization of butadiene and acrylonitrile. Hydrogenated nitrile butadiene rubber (HBR) is a kind of highly saturated elastomer which is processed on the basis of NBR.

2, heat resistance, conventional nitrile butadiene rubber o-ring operating temperature of 100℃, special formula can be used at 120℃; Hydrogenated nitrile butadiene rubber (HBR) can be prepared at 150℃, depending on the formulation and raw rubber.

3, comprehensive although nitrile butadiene rubber oil resistance, heat resistance, wear resistance is better, but compared with nitrile butadiene rubber has better heat resistance, cold and wear resistance, higher tensile strength, better comprehensive performance, but the price is also more expensive than nitrile butadiene rubber O ring.

O-type nitrile butadiene rubber sealing ring is generally used in hydraulic and pneumatic systems, while hydrogenated nitrile butadiene rubber o-type sealing ring is mainly used in environmental protection air conditioning and some products with relatively high wear and temperature resistance. Dongshengdi sealing ring manufacturer for 18 years can develop and refine suitable o-ring according to customers' working conditions.