▎ 摘　　要

NOVELTY - Preparing graphene-modified coal mine whole-core flame-retardant conveyor belt comprises (S1) uniformly mixing graphene with dispersant/coupling agent, (S2) uniformly mixing 3-20 pts. wt. graphene, 100-150 pts. wt. polyvinyl chloride that are wrapped with dispersant/coupling agent obtained in step (S1), 3-20 pts. wt. nitrile rubber, 40-80 pts. wt. plasticizer, 10-30 pts. wt. flame retardant, and 1-3 pts. wt. stabilizer in a high-speed mixer, and discharging at 80-120°C to obtain a mixture, (S3) adding the mixture obtained in the step (S2) to the single-screw or twin-screw plastic granulator rotating at 10-45 revolutions/minute at a rate of 10-300 Kg/hour, (S4) transporting the whole core of the particle conveyor belt made of graphene-grafted polyvinyl chloride particles in the step (S3) into two large extruders produced by hanging glue, and (S5) passing through an extrusion die. USE - The method is useful for preparing graphene-modified coal mine whole-core flame-retardant conveyor belt, which is useful in coal mine. ADVANTAGE - The graphene-modified coal mine whole-core flame-retardant conveyor belt has high tear resistance, wear resistance, impact resistance and physical performance, improved physical characteristic, permanent antistatic effect, and improved service life of the joint. DETAILED DESCRIPTION - Preparing graphene-modified coal mine whole-core flame-retardant conveyor belt comprises (S1) uniformly mixing graphene with dispersant/coupling agent, so that surface of graphene is covered with the dispersant/coupling agent, (S2) uniformly mixing 3-20 pts. wt. graphene, 100-150 pts. wt. polyvinyl chloride that are wrapped with dispersant/coupling agent obtained in step (S1), 3-20 pts. wt. nitrile rubber, 40-80 pts. wt. plasticizer, 10-30 pts. wt. flame retardant, and 1-3 pts. wt. stabilizer in a high-speed mixer, and discharging at 80-120°C to obtain a mixture, (S3) adding the mixture obtained in the step (S2) to the single-screw or twin-screw plastic granulator rotating at 10-45 revolutions/minute at a rate of 10-300 Kg/hour, and adding mixture and granulating at 90-170℃ of the machine body to obtain the graphene-grafted polyvinyl chloride particles, (S4) transporting the whole core of the particle conveyor belt made of graphene-grafted polyvinyl chloride particles in the step (S3) into two large extruders produced by hanging glue, where the body temperature is 90-170℃, and the temperature of the mold is 165-190℃, and coating the film on the plasticized conveyor belt base belt through two extruders, where the thickness of the surface glue is 1-5 mm, and (S5) passing through an extrusion die to produce a graphene-grafted polyvinyl chloride coal mine whole-core flame-retardant conveyor belt with a width of 500-2000 mm.