▎ 摘　　要

NOVELTY - Graphene composite cable material comprises 30-35 pts. polyimide emulsion, 25-35 pts. modified montmorillonite, 20-30 pts. high density polyethylene, 15-25 pts. polyethylene naphthalate, 10-20 pts. silane coupling agent KH-550, 10-15 pts. sulfur powder, 8-12 pts. titanium diboride, 8-12 pts. glass fiber, 7-10 pts. citric acid ester, 5-8 pts. graphene, 5-8 pts. glycerol choline phosphate, 2-5 pts. diethylene (3,4-dimethyl) benzyl sorbitol, 3-5 pts. dispersant and 3-5 pts. antioxidant. USE - Used as graphene composite cable material. ADVANTAGE - The graphene composite cable material is environmentally-friendly, has low integral cost and meets the industrial requirements. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the graphene composite cable material, comprising (i) taking the mentioned raw materials; (ii) mixing the graphene, titanium diboride and glass fiber with water, grinding for 3-5 hours to obtain 450-550 meshes slurry, and spray drying to obtain the powder, where the spray dryer inlet temperature is 250 degrees C, and the wind outlet temperature is 180 degrees C; (iii) adding nitric acid into the powder, reacting for 5-15 minutes, drying the billet and adding into the mixer, then adding polyimide emulsion, modified montmorillonite, high density polyethylene and polyethylene naphthalate, mixing for 25-30 minutes at 95-100 degrees C, adding silane coupling agent KH-550, sulfur, citrate, choline phosphate and diethylenetriamine (3,4-dimethyl) benzyl sorbitol, and mixing for 5-10 minutes; (iv) adding dispersant, anti-aging agent, and 20 pts. de-ionized water into the mixture, ultrasonically treating for 2.5-3 hours at 25- 30KHz to obtain raw material suspension, where the power of the ultrasonic treatment is 1200-1300 W; (v) drying the raw material suspension, then adding into double-screw extruder, fusing, filtering at 370-390 degrees C, then extruding at rotating speed of 180-200 revolutions/minute, where the extruding pressure is 15-18 kPa; and (vi) cooling the extruded raw material, stretching, wherevthe stretching ratio is 3.2-3.5 times, and finally hot molding at 280 degrees C.