High-temperature-resistant locomotive-lubricating-oil-resistant rubber composition as well as preparation method and application thereof

The invention provides a rubber composition resistant to high temperature and locomotive lubricating oil, which is prepared from the following components in parts by weight: 100 parts of hydrogenated butadiene-acrylonitrile rubber, 4 to 7 parts of zinc oxide, 1 to 3 parts of stearic acid, 1.5 to 2.5 parts of barium dioctyl dithiophosphate, 1.5 to 2.5 parts of barium dibenzyl dithiocarbamate and 1 to 2 parts of 1, 6-dithiosulfate decane disodium salt. The composition comprises the following components in parts by weight: 20-30 parts of epoxy resin, 3-5 parts of microcrystalline wax, 3-5 parts of beta-(3, 5-di-tert-butyl-4-hydroxyphenyl) octadecanol propionate and 40-60 parts of carbon black. The invention also provides a preparation method and application of the rubber composition. The rubber composition can obviously prolong the service life of a water and oil conveying rubber pipe for a diesel engine, especially a high-power diesel locomotive diesel engine cooling system. 本发明提供一种耐高温耐机车润滑油的橡胶组合物，包含如下重量份的组分：氢化