Hydraulic seal of the hydrogenated nitrile material

Hydrogenated nitrile rubber (HNBR) is a comprehensive performance is the best special rubber, is also a kind of strategic resources, with excellent oil resistance, corrosion resistance, low temperature resistance, high temperature (150-170 DEG C), resistance to oxidation, dynamic fatigue resistance, ozone resistance of new materials. Mainly used in automotive manufacturing, oil field mining, aerospace, military products and other fields.

From the 80s of the 20th century the hydrogenated nitrile hydraulic seals are mainly Japan ruiweng Zetpol and Germany LANXESS THERBAN global production in more than 20000 tons / year. The country has a number of studies on the synthesis of hydrogenated nitrile rubber, but the demand is still dependent on imports. In the hydrogenated nitrile rubber hydraulic seal technology research and technology of nitrile butadiene rubber (NBR) catalyst is difficult, the advantages of the production technology of HNBR is mainly reflected the advanced sex of the catalyst system used in the production process. Nippon Zeon use of palladium catalysts supported on carbon, Germany LANXESS is rhodium catalyst system, using Zannan is ruthenium catalysts.

The hydrogenated butyl rubber hydraulic sealing part is removed by hydrogenation to remove part of the double chain, after the hydrogenation of its temperature resistance, weather resistance than general rubber improved a lot of rubber, oil resistance and general rubber plastic similar. General temperature range is -25~150. Advantages: compared with NBR rubber has better abrasion resistance, excellent corrosion resistance, tensile, tear resistance and compression of the characteristics in the ozone and other atmospheric conditions with good resistance, general and applicable in the laundry or washing dishes in the cleaning agent. Disadvantages: it is not recommended to used in alcohol, esters and aromatic solution of refrigeration and air conditioning industry, are widely used to seal the environmentally friendly refrigerant R134a system.