▎ 摘　　要

NOVELTY - A polyethylene material comprises modified polyethylene, nano-iron powder modified polybenzoxazole, nano-copper powder modified polybenzimidazole and graphene modified carbon fiber in a mass ratio of 90:18-26:17-26:16-25. The modified polyethylene is prepared by reacting polyethylene, amorphous silica, silica aerogel, diethylene glycol and silica microspheres in a weight ratio of 83:17-25:7-13:8-15:9-14. The nano-iron powder modified polybenzoxazole is prepared by reacting polybenzoxazole short fiber, iron acetate, water, ethanol, iron powder and zinc powder in a mass ratio of 56:38-46:27-35:45-53:6-8:21-26. The nano-copper powder modified polybenzimidazole is prepared by reacting polybenzimidazole short fiber, copper acetate, water and isopropanol in a mass ratio of 55:33-46:29-37:136-145. USE - Polyethylene material. ADVANTAGE - The polyethylene material has low molding processing temperature. DETAILED DESCRIPTION - The graphene-modified carbon fiber is prepared by reacting carbon fiber, graphene, 1-octyl-2,3-dimethylimidazole, methylbenzenesulfonate, N-methylpyrrolidone, ethanol and water. The content of the carbon fiber, graphene, 1-octyl-2,3-dimethylimidazole p-toluenesulfonate, N-methylpyrrolidone, ethanol and water is 62:25-33:33-41:168-182:95-108:5-12. An INDEPENDENT CLAIM is included for manufacture of polyethylene material, which involves adding carbon fiber, graphene, 1-octyl-2,3-dimethylimidazolium p-toluenesulfonate, N-methylpyrrolidone, ethanol and water in the mass ratio of 62:25-33:33-41:168-182:95-108:5-12 to a hydrothermal reactor, maintaining a hydrothermal reactor at 95-107 degrees C for 38-50 minutes, distilling obtained product at 75 degrees C at a pressure of (-0.07) MPa for 30 minutes, washing the product for 5 times using 500 mL diethyl ether and drying under vacuum at 45 degrees C at a pressure of (-0.05) MPa for 7 minutes to obtain graphene modified carbon fiber, adding polybenzimidazole, copper acetate, water and isopropanol in a mass ratio of 55:33-46:29-37:136-145 to a hydrothermal reactor, reacting for 35 minutes at 89-96 degrees C and distilling the obtained product at 78 degrees C at a pressure of (-0.06) MPa for 25 minutes and reducing the obtained product at a high-temperature hydrogen to obtain nano-copper powder modified polybenzimidazole, adding polybenzoxazole short fiber, iron acetate, water, ethanol, iron powder and zinc powder in a mass ratio of 56:38-46:27-35:45-53:6-8:21 into a hydrothermal reactor, maintaining the reaction temperature of the reactor at 39-45 degrees C for 25 minutes, raising the temperature of the hydrothermal reactor to 105-118 degrees C for 0.5-2 hours, filtering the obtained product, washing the obtained product using 500 mL water and 500 mL ethanol, drying at 55 degrees C at a pressure of (-0.08) MPa vacuum for 6 minutes to obtain nano-iron powder modified polybenzoxazole, adding polyethylene, amorphous silica, silica aerogel, diethylene glycol and silica microspheres in a mass ratio of 83:17-25:7-13:8-15:9-14 to a high-speed mixer, mixing at a high-speed mixer at a temperature of 172-175 degrees C for 2-5 minutes, extruding and granulating at a temperature of 172-178 degrees C to obtain modified polyethylene, adding and mixing modified polyethylene, nano-iron powder modified polybenzoxazole, nano-copper powder modified polybenzimidazole and graphene-modified carbon fiber in a mass ratio of 90:18-26:17-26:16-25, mixing at a temperature of 153-161 degrees C for 1-4 minutes using a high-speed mixer, and performing extrusion granulation at a temperature of 150-156 degrees C using an extruder.