▎ 摘　　要

NOVELTY - Graphene three-dimensional printing material having high heat distortion temperature comprises graphene, waste plastics, polylactic acid, potassium tetraphosphate, butyl diethylene glycol acetate, specific synthesis agent and starch synthesis agent. The specific synthetic agent comprises 15-22 pts. wt. adjusting agent, 12-18 pts. wt. generating agent, 10-15 pts. wt. coupling agent, 12-16 pts. wt. compatibilizer, 9-12 pts. wt. plasticizer, 6-10 pts. wt. antioxidant, 5-9 pts. wt. coagulant, 3-5 pts. wt. terminating agent, and 2-4 pts. wt. stabilizers. USE - Graphene three-dimensional printing material having high heat distortion temperature. ADVANTAGE - The material has high quality, large tensile strength, bending strength and notch impact strength, heat distortion temperature, and high melt index. DETAILED DESCRIPTION - Graphene three-dimensional printing material having high heat distortion temperature comprises 5.4-7.8 pts. wt. graphene, 25-30 pts. wt. waste plastics, 35-42 pts. wt. polylactic acid, 13-23 pts. wt. potassium tetraphosphate, 20-24 pts. wt. butyl diethylene glycol acetate, 10-18 pts. wt. specific synthesis agent and 5-9 pts. wt. starch synthesis agent. The specific synthetic agent comprises 15-22 pts. wt. adjusting agent, 12-18 pts. wt. generating agent, 10-15 pts. wt. coupling agent, 12-16 pts. wt. compatibilizer, 9-12 pts. wt. plasticizer, 6-10 pts. wt. antioxidant, 5-9 pts. wt. coagulant, 3-5 pts. wt. terminating agent, and 2-4 pts. wt. stabilizers. The starch synthesizer comprises 80-130 pts. wt. starch, 10-16 pts. wt. dimethyl glutarate, 8-13 pts. wt. N,N-dimethylacetamide, 2-5 pts. wt. epichlorohydrin, 1.5-3.5 pts. wt. urea, 1-2 pts. wt. pasteurizing agent, 0.2-0.6 pt. wt. coupling agent, 0.1-0.2 pt. wt. initiator, 0.1-0.2 pt. wt. catalyst, 0.1-0.3 pt. wt. stabilizer b, 0.3-0.8 pt. wt. defoamer, 0.4-0.9 pt. wt. plasticizer b, 0.3-0.7 pt. wt. toughening agent, 0.3-0.6 pt. wt. tackifier, 0.2-0.4 pt. wt. water resistant agent and 0.1-0.2 pt. wt. antibacterial agent. The coupling agent b is titanate coupling agent. The initiator is azobisisobutyric acid (ethyleneglycol) ester. The catalyst is platinum catalyst. The stabilizer b is organotin stabilizer. The defoaming agent is polyoxyethylene polyoxypropylene pentaerythritol ether. The plasticizer b is bis(2-ethylhexyl) phthalate. The toughening agent is polypropylene rubber. The tackifier is propyltrimethoxysilane. The water-resistant agent is boric acid. The antimicrobial agent is lithium carbonate. The graphene three-dimensional printing material is prepared by purchasing two-dimensional graphene raw materials on market, and performing special treatment to obtain primary graphene powder; crushing waste plastic using hard plastic crusher after cleaning and removing dirt on surface, and naturally drying; placing selected plastic in low-temperature pulverizer with nitrogen or dry ice, and pulverizing at - 90-110 degrees C for 2-3 hours, and sieving to get 400-600 mesh plastic fine particles; mixing primary graphene powder and plastic fine particles, adding polylactic acid, potassium tripolyphosphate, adipate and specific synthetic agent, heating to 196-225 degrees C, stirring at 200-400 revolutions/minute for 2-3.3 hours, and cooling to room temperature; and pulverizing at - 90-110 degrees C, adding starch synthesis agent to mixture, mixing and homogenizing, placing in screw extruder, and extruding at 180-200 degrees C and 110-130 revolutions/minute.