▎ 摘　　要

NOVELTY - Micro-crosslinked antistatic graphene-based polyethylene composite material comprises 80-90 pts. wt. polyethylene, 2-3 pts. wt. processing additive, 0.01-0.1 pt. wt. initiator and 5-15 pts. wt. graphene-based antistatic mastebatch, where the graphene-based antistatic masterbatch is prepared using 85-95 pts. wt. elastomer, 5-20 pts. wt. graphene microchip, 1-5 pts. wt. coupling agent, 2-5 pts. wt. processing additive and 0.01-0.1 pt. wt. initiator. USE - As micro-crosslinked antistatic graphene-based polyethylene composite material. ADVANTAGE - The polyethylene composite material prepares pre-crosslinked graphene-based antistatic masterbatch by cross-linking system in carrier polymer, makes use of difference between processing temperature of carrier polymer and polyethylene and flowing property of melt, so that the carrier polymer completely penetrates to inside of polyethylene material, and makes the carrier polymer penetrate and distribute in polyethylene substrate in form of network structure during subsequent processing by action of chemical cross-linking. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing micro-crosslinked antistatic graphene-based polyethylene composite material, involves (a) melt-bending elastomer, graphene microchip, coupling agent, processing additive and initiator in sequential addition to Hag torque rheometer, after completing banburying, and collecting obtain product for granulation to obtain graphene-based antistatic masterbatch, where the rotating speed of Hag torque rheometer is 60 rpm, banburying for 6-10 minutes, and the processing temperature of Hag torque rheometer is 90-130 degrees C, (b) adding prepared graphene-based antistatic masterbatch, polyethylene, processing additive and initiator to high-speed mixer, uniformly mixing, adding to twin-screw extruder, melting, extruding, cooling and cutting using twin-screw extruder to obtain micro-crosslinked antistatic graphene-based polyethylene composite material, where the processing temperature in (I)-(X) zone of twin-screw extruder is carried out at 135 degrees C, 155 degrees C, 165 degrees C, 165 degrees C, 170 degrees C, 175 degrees C, 180 degrees C, 185 degrees C, 185 degrees C and 185 degrees C, the rotation speed of main screw is carried out at 300-450 rpm, and the temperature of water tank is 23-50 degrees C.