▎ 摘　　要

NOVELTY - Material comprises 40-60 pts. wt. ethylene-butene copolymer, 40-60 pts. wt. ethylene octene copolymer, 8-16 pts. wt. high temperature peeling auxiliary agent, 1-3 pts. wt. anti-aging agent, 2-5 pts. wt. dispersing auxiliary agent, 55-75 pts. wt. conductive carbon black, and 3-6 pts. wt. vulcanizing agent and vulcanization accelerator, where the high-temperature peeling auxiliary agent comprises 5-15 pts. wt. ethylene-vinyl acetate copolymer, 0.05-1 pts. wt. graphene, 0.2-1 pts. wt. vaseline, 0.2-1 pts. wt. low molecular weight polyethylene wax, 0.02-0.1 pts. wt. dicumyl peroxide, and 0.05-0.2 pts. wt. triallyl isocyanurate. USE - The material is useful as insulation shielding material for high-voltage special rubber cable, preferably twist-resistant flexible cable for wind power generation. ADVANTAGE - The material: has high temperature peelable insulation shielding, 66 kV rated voltage resistance, 45-55% rubber content; is non-peelable at low temperature (90℃) and peelable at high temperature (110-120℃), which makes joints in engineering construction, and avoids risk of mechanical grinding and damages insulation. The method is economical. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: preparing material, comprising (i) adding ethylene-vinyl acetate copolymer into vacuum kneader preheated to 90-110℃ or cavity of Haake torque rheometer and stirring for 2-3 minutes, adding graphene, vaseline, and low molecular weight polyethylene into cavity based on proportion and mixing for 10-20 minutes, blanking and cooling to obtain stripping auxiliary agent precursor, mixing precursor of stripping auxiliary agent at 90-110℃ for 2-5 minutes, adding dicumyl peroxide and triallyl isocyanurate in, mixing for 1-3 minutes, quickly raising temperature to 160-180℃, continue stirring for 5-10 minutes, and cooling down after conveying to obtain high-temperature peeling auxiliary agent, (ii) adding ethylene-butene copolymer and ethylene-octene copolymer into internal mixer preheated to 70-90℃ and mixing for 2-4 minutes, adding anti-aging agent, dispersing aid and conductive carbon black of half weight into internal mixer and mixing for 2-5 minutes, then adding remaining conductive carbon black into internal mixer and continue mixing for 5-10 minutes, uniformly mixing, cooling material to obtain conductive mixture, and (iii) mixing spare materials with vulcanizing agent and vulcanization accelerator based on proportion in an internal mixer preheated to 100℃ for 8-10 minutes to obtain high temperature peelable insulating shielding material. high-voltage special rubber cable.