Rubber material for bearing sealing element and preparation method thereof

The invention discloses a rubber material for a bearing sealing element and a preparation method. Comprising the following components in parts by weight: 100 parts of nitrile rubber, 20-26 parts of butadiene rubber, 3-6 parts of tannic acid, 35-40 parts of carbon black, 1-2 parts of modified carbon nanotubes, 0.5-1 part of silicon nitride, 0.6-0.8 part of chlorosulfonated polyethylene, 3-5 parts of zinc oxide, 1.5-2 parts of stearic acid, 0.4-0.6 part of a scorch retarder, 1.5-2 parts of an anti-aging agent, 1.2-1.5 parts of sulfur, 55-60 parts of silicate, 20-25 parts of an ether ester plasticizer, 2-2.5 parts of a release agent, 0.8-1 part of an accelerant TMTD and 0.6-0.8 part of an accelerant MBTS. The rubber prepared by matching the preferable components in the scheme makes a breakthrough in wear resistance, and is excellent in oil resistance, heat resistance, elasticity and the like. 本发明公开了轴承密封件用橡胶材料及制备方法，包括组分丁腈橡胶100份、顺丁橡胶20-26份、单宁酸3-6份、炭黑35-40份、改性碳纳米管1-2份、氮化硅0.5-1份、氯磺化聚乙烯0.6-0.8份、氧化锌3-5份、硬脂酸1.5-2份、防焦剂0