▎ 摘　　要

NOVELTY - Method for preparing oil-resistant flame-retardant cable material, involves (a) uniformly mixing aluminum source, magnesium source, sodium hydroxide and sodium carbonate, uniformly mixing obtained mixture, adding obtained mixture to stainless steel pot filled with deionized water, performing stirring reaction, precipitating and cooling the suspension, filtering, washing and drying the suspension, (b) uniformly mixing obtained flame retardant, oil-resistant elastomer, titanium dioxide, vinyl distearamide, sodium hexametaphosphate, bisphenol A ester, ethylene glycol dimethacrylate, polyurethane elastomer, tripolyene, antioxidant and high-density polyethylene, adding obtained mixture to torque rheometer, blending and extruding, and (c) placing substrate material in electron accelerator irradiation device for irradiating in nitrogen environment, and irradiating with radiation amount of 50-100 kGy for 15-30 seconds to obtain cable material. USE - Method for preparing oil-resistant flame-retardant cable material. ADVANTAGE - The method prepares magnesium-aluminum composite flame retardant by one-step method under normal pressure, and the prepared magnesium-aluminum composite flame retardant plays both flame retardant and filling functions, does not produce toxic gas and corrosive gas when burning, has function of smoke suppression, and is non-toxic, non-volatile and economical. DETAILED DESCRIPTION - Method for preparing oil-resistant flame-retardant cable material, involves (a) uniformly mixing aluminum source, magnesium source, sodium hydroxide and sodium carbonate, uniformly mixing obtained mixture, adding obtained mixture to stainless steel pot filled with deionized water, performing stirring reaction at a temperature of 75-85degrees Celsius under normal pressure, precipitating and cooling the suspension, filtering, washing and drying the suspension to obtain water flame retardant, (b) uniformly mixing obtained flame retardant, oil-resistant elastomer, titanium dioxide, vinyl distearamide, sodium hexametaphosphate, bisphenol A ester, ethylene glycol dimethacrylate, polyurethane elastomer, tripolyene, antioxidant and high-density polyethylene, adding obtained mixture to torque rheometer, blending and extruding to obtain substrate material, (c) placing substrate material in electron accelerator irradiation device for irradiating in nitrogen environment at 35-40degrees Celsius under pressure of 3-8 MPa, and irradiating with radiation amount of 50-100 kGy for 15-30 seconds to obtain cable material.