Hydrogenated nitrile rubber(HNBR)was prepared by selective hydrogenation of nitrile-butadiene rubber latex using hydrazine hydrate/hydrogen peroxide catalytic system,which effectively resolved the problems with enviro...Hydrogenated nitrile rubber(HNBR)was prepared by selective hydrogenation of nitrile-butadiene rubber latex using hydrazine hydrate/hydrogen peroxide catalytic system,which effectively resolved the problems with environment pollution and high cost caused by noble metal catalyst via solution hydrogenation method.Because of the saturation of carbon-carbon double bonds after hydrogenation,HNBR presented excellent thermal-oxidative aging resistance.The thermaloxidative activation of HNBR prepared in situ was investigated by thermogravimetric analysis(TGA)and Flynn-Wall-Ozawa method.Meanwhile,the microstructure and mechanical properties of HNBR was studied during the thermal-oxidative aging process.The relationship between lifetime and aging temperature was evaluated as well as the thermal-oxidative aging coefficient of HNBR,which provided theoretical basis for the application of HNBR under the high temperature and in harsh environment.展开更多
基金Supported by Shandong Key Research and Development Plan(Military and Civilian Technology Integration)(2018JMRH0205).
文摘Hydrogenated nitrile rubber(HNBR)was prepared by selective hydrogenation of nitrile-butadiene rubber latex using hydrazine hydrate/hydrogen peroxide catalytic system,which effectively resolved the problems with environment pollution and high cost caused by noble metal catalyst via solution hydrogenation method.Because of the saturation of carbon-carbon double bonds after hydrogenation,HNBR presented excellent thermal-oxidative aging resistance.The thermaloxidative activation of HNBR prepared in situ was investigated by thermogravimetric analysis(TGA)and Flynn-Wall-Ozawa method.Meanwhile,the microstructure and mechanical properties of HNBR was studied during the thermal-oxidative aging process.The relationship between lifetime and aging temperature was evaluated as well as the thermal-oxidative aging coefficient of HNBR,which provided theoretical basis for the application of HNBR under the high temperature and in harsh environment.
