▎ 摘　　要

NOVELTY - Graphene 3D printing material having high impact strength comprises 5.5-7.7 pts. wt. graphene, 24.6-31 pts. wt. waste plastic, 34.2-40 pts. wt. polylactic acid, 11.6-23 pts. wt. potassium hexafluorophosphate, 18.3-24 pts. wt. epoxy acrylate, 9.2-18 pts. wt. specific synthetic agent and 5.2-9 pts. wt. starch synthesizing agent, the specific synthetic agent includes e.g. regulator, generating agent, coupling agent a, compatibilizer, plasticizer a, antioxidant, coagulant, terminating agent and stabilizer a. USE - Used as graphene 3D printing material having high impact strength. ADVANTAGE - The printing material: has large tensile strength, bending strength and notch impact strength; high heat distortion temperature and melt index; printed out material has high impact resistance and high strength. DETAILED DESCRIPTION - Graphene 3D printing material having high impact strength comprises 5.5-7.7 pts. wt. graphene, 24.6-31 pts. wt. waste plastic, 34.2-40 pts. wt. polylactic acid, 11.6-23 pts. wt. potassium hexafluorophosphate, 18.3-24 pts. wt. epoxy acrylate, 9.2-18 pts. wt. specific synthetic agent and 5.2-9 pts. wt. starch synthesizing agent, the specific synthetic agent includes 15-22 pts. wt. regulator, 12-18 pts. wt. generating agent, 10-15 pts. wt. coupling agent a, 12-16 pts. wt. compatibilizer, 9-12 pts. wt. plasticizer a, 6-10 pts. wt. antioxidant, 5-9 pts. wt. coagulant, 3-5 pts. wt. terminating agent and 2-4 pts. wt. stabilizer a, the starch synthesizing agent includes 80-130 pts. wt. starch, 10-16 pts. wt. dimethyl glutarate, 8-13 pts. wt. N,N-dimethylacetamide, 2-5 pts. wt. epoxy-chlorobutane, 1.5-3.5 pts. wt. urea, 1-2 pts. wt. gelatinizing agent, 0.2-0.6 pts. wt. coupling agent b, 0.1-0.2 pts. wt. initiator, 0.1-0.2 pts. wt. catalyst, 0.1-0.3 pts. wt. stabilizer b, 0.3-0.8 pts. wt. antifoaming agent, 0.4-0.9 pts. wt. plasticizer b, 0.3-0.7 pts. wt. toughening agent, 0.3-0.6 pts. wt. tackifier, 0.2-0.4 pts. wt. water resistant agent and 0.1-0.2 pts. wt. antimicrobial agent, the coupling agent b is titanate coupling agent, the initiator is azobisisobutyric acid (ethylene glycol) ester, the catalyst is platinum catalyst, the stabilizer b is an organotin stabilizer, the anti foaming agent is polyoxyethylene polyoxypropylene pentaerythritol ether, the plasticizer b is (2-ethylhexyl) phthalate, the toughening agent is polypropylene rubber, the tackifier is propyltrimethoxysilane, the water-resistant agent is boric acid, and the antimicrobial agent is lithium carbonate, preparing comprises (i) buying two-dimensional graphene material on the market, through special treatment obtaining primary graphene powder, (ii) using hard plastic crusher crushing primarily waste plastic, using waste plastic batch mixing plastic washer has broken to clean thoroughly, removing dirt on surface, naturally drying to obtain plastic, (iii) adding the step (ii) plastic into crusher under nitrogen or dry ice low temperature, the temperature is -90 degrees C to -110 degrees C, crushing the plastic for 2-3 hours, sieving through 400-600 meshes to obtain plastic granules, (iv) into primary graphene powder and plastic granules, adding polylactic acid, poly-potassium phosphate, acrylate and special synthetic agent, raising temperature to 194-220 degrees C, stirring at 200-400 revolutions/minute for 2.2-3.4 hours, cooling to room temperature to obtain modified graphene 3D print second-rate material, where the preparation of specific synthetic agent includes (iva) mixing generating agent, coupling agent a, compatibilizer and antioxidant, heating to 117-128 degrees C, stirring and reacting at 100-200 revolutions/minute for 68-82 minutes to obtain material A, (ivb) into material A, adding regulator and coagulant, mixing, heating to 143-156 degrees C, stirring and reacting at 300-400 revolutions/minute for 145-232 minutes to obtain material B, (ivc) adding plasticizer a, terminating agent and stabilizer a into material B, mixing, reducing temperature to 108-125 degrees C, stirring and reacting for 62-135 minutes at 200-300 revolutions/minute to obtain special synthetic agent, (v) crushing the step (iv) modified graphene 3D printing secondary material at -90 degrees C -110 degrees C conditions, adding starch synthesizing agent, mixing uniformly, placing uniformly mixed mixture in screw extrusion molding machine, maintaining temperature at 180-200 degrees C and the rotating speed at 110-130 revolutions/minute, extruding into strip to obtain graphene 3D printing material with high impact strength, where preparing starch synthesizing agent includes (va) preparing 18-25Be concentration, 3.1-3.8 pH value starch slurry, (vb) into starch slurry, adding 4-8% dimethyl glutarate, N,N-dimethyl acetamide, coupling agent b and catalyst, stirring under 42-58 degrees C temperature condition at 70-100 revolutions/minute for cross linking and grafting reaction for 2.5-3.5 hours to obtain slurry b, (vc) adding pasting agent into slurry b, adjusting pH value to 9.1-9.8, adding epoxy butane, urea, initiator, plasticizer b, tackifier, waterproof agent and antibacterial agent, under 55-61 degrees C temperature, stirring at 80-120 revolutions/minute for linking reaction for 1.2-1.8 hours to obtain slurry c, (vd) into the slurry c, adding stabilizing agent b, adjusting the pH value to 8.3-8.5, raising temperature to 73-77 degrees C, pasting for 50-55 minutes, reducing temperature to 30-33 degrees C after pasting, adding defoamer, stirring at 90-130 revolutions/minute for 8-12 minutes to obtain starch synthetic agent.