Oil And Aging Resistant HNBR

Oil and aging resistant HNBR, or hydrogenated nitrile butadiene rubber, is a popular material used in various industrial applications due to its excellent resistance to high temperatures and air aging. It is significantly better than NBR, chlorosulfonated polyethylene (CSM), and chloroprene rubber (CR) when tested in a high-temperature (150℃) environment. The latter three materials are not suitable for working in such conditions, unlike HNBR, which has shown outstanding resistance to oil and aging.

In a comparison experiment, HNBR exhibited exceptional performance in resisting oil and aging when compared to NBR, CSM, and CR. This was demonstrated in a test where the HNBR sample was soaked in hydraulic steering oil at 180℃ for 1000 hours. Its elongation at break rate was significantly lower than that of acrylate rubber. The evaluation standard for the material's usability is a change in elongation rate of less than 80% at a certain temperature, with no cracking of the sample. The HNBR that underwent peroxide vulcanization had a lifespan of 1000 hours at a working temperature of 150℃, while NBR and CR only had a lifespan of 106℃ and 101℃, respectively.

In conclusion, Oil and aging resistant HNBR is an excellent choice for industrial applications that require materials to withstand high temperatures and resist oil and aging. Its superior performance in comparison to NBR, CSM, and CR has made it a valuable material in a wide range of industries.

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