High-mechanical-performance cable material for high power and preparation method thereof

The invention discloses a high-mechanical-performance cable material for high power and a preparation method thereof. The high-mechanical-performance cable material comprises, by weight, 2-3 parts of stearic acid, 2-4 parts of activated magnesium hydrate, 3-5 parts of silicon dioxide powder, 2-3 parts of pyrophyllite powder, 3-5 parts of tris(2-ethylhexyl) phosphate, 2-4 parts of talcum powder, 45-65 parts of ethylene propylene diene monomer, 1-3 parts of 2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol, 1-2 parts of antioxidant TPP, 15-20 parts of linear low-density polyethylene, 3-5 parts of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, 2-4 parts of sodium sulfonate, 2-4 parts of polycarbonate, 2-3 parts of m-xylylenediamine and 8-12 parts of filler. The high-mechanical-performance cable material has the excellent heat-resisting sublimability, launderability, gas fading resistance, mechanical performance retainability, and the added2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol and antioxidant TPP are used together to achieve a remarkable synergistic effect.