High-temperature-resistant and wear-resistant cover rubber for conveying belt and preparation method thereof

The invention relates to the technical field of rubber, in particular to high-temperature-resistant and wear-resistant cover rubber for a conveyor belt, which comprises the following components in parts by mass: ethylene propylene rubber, an active agent, carbon black, an anti-aging agent, resin, a plasticizer, dicumyl peroxide and an assistant crosslinker. Wherein the ethylene propylene rubber is high Mooney ethylene propylene rubber, and the Mooney viscosity [ML (1 + 4) 100 DEG C] of the ethylene propylene rubber is 60-80. The invention also discloses a preparation method of the covering rubber. According to the invention, high Mooney ethylene-propylene rubber is used as a matrix of the high-temperature-resistant T4-grade wear-resistant cover rubber material for the conveyor belt, and is matched with an active agent, an anti-aging system and a reinforcing system, and rubber compounded by a peroxide vulcanization system is used, so that the heat aging resistance, wear resistance and the like of the rubber ar