▎ 摘　　要

NOVELTY - Low-smoke halogen-free flame-retardant cable material comprises 100 pts. wt. matrix resin, 50-80 pts. wt. modified aluminum hydroxide, 50-80 pts. wt. nano-magnesium hydroxides, 10-35 pts. wt. ammonium polyphosphate, 1-3 pts. wt. molybdenum trioxide, 15-20 pts. wt. compatibilizer, 0.4-1.8 pts. wt. silicone masterbatch, 1-10 pts. wt. nanofiber clay, 5-7 pts. wt. nano graphene powder and 0.5-2.8 pts. wt. antioxidant, where the matrix resin comprises low-density polyethylene, polyolefin elastomer and ethylene-vinyl acetate copolymer resin in a mass ratio of 1-4:1-2:1. USE - The low-smoke halogen-free flame-retardant cable material is useful in a safety cable product and a building device. ADVANTAGE - The cable material ensures the cable material insulating performance and mechanical property, excellent flame-retardant effect, low smoke and non-toxic during combustion, at the same time, improving the temperature resistance of cable material, aging resistance and service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the cable material, comprising (1) adding the raw materials sequentially into the high-speed mixer, and stirring the mixture and mixing for 10-30 minutes at a rotational speed of 400-600 revolutions/minute to obtain a premix, and (2) adding the base resin and the premix into the internal mixer at 140-150degrees Celsius, adding the double-stage single-screw extrusion after mixing for 15-30 minutes In the machine, where the body temperature is 145-180degrees Celsius, the temperature of the die head is 185-205degrees Celsius, extruding and granulating, and grinding the surface with cold air and dicing, air cooling, vibration screening and sorting to obtain low-smoke halogen-free flame retardant cable material.