Core rubber for mixed joint of aramid fiber conveying belt and steel wire rope core conveying belt as well as preparation method and application of core rubber

The invention belongs to the technical field of rubber, and discloses core rubber for a mixed joint of an aramid fiber conveying belt and a steel wire rope core conveying belt as well as a preparation method and application of the core rubber. The core rubber for the mixed joint of the aramid fiber conveying belt and the steel wire rope core conveying belt is prepared from the following raw materials in parts by mass: 40 to 60 parts of natural rubber, 30 to 50 parts of butadiene styrene rubber, 30 to 50 parts of butadiene rubber, 10 to 40 parts of polyester fiber, 40 to 60 parts of ceramic waste, 1 to 3 parts of sulfur, 8 to 15 parts of zinc oxide, 1 to 3 parts of stearic acid, 2 to 5 parts of anti-aging agent, 8 to 16 parts of boric acid ester and 1 to 4 parts of tackifier. According to the invention, the core rubber with excellent weather resistance and stable mechanical properties is prepared; the core rubber has high bonding strength with the aramid fiber conveying belt and the steel wire rope core convey