▎ 摘　　要

NOVELTY - Preparing graphene modified 3D printing material comprises (i) mixing acrylonitrile butadiene styrene resin, zinc acrylate resin, pulverizing to obtain mixed resin powder; (ii) mixing surfactant with mixed resin powder and activating to obtain an activated mixed resin powder; (iii) pulverizing graphene and sieving to obtain graphene energy powder; (iv) mixing activated mixed resin and graphene energy under nitrogen protection (v) mixing curing agent, antioxidant, stabilizer, anti-aging agent and flame retardant with mixture 1 heating to obtain mixture II; and (vi) extruding the mixture II. USE - The method is useful for preparing graphene modified 3D printing material (claimed). ADVANTAGE - The printing material has radiating property and tensile strength and applied in 3D printing in the notebook computer shell. DETAILED DESCRIPTION - Preparing graphene modified 3D printing material comprises (i) mixing 86-124 pts. wt. acrylonitrile butadiene styrene resin, 24-38 pts. wt. zinc acrylate resin, pulverizing 200-300 meshes to obtain mixed resin powder; (ii) mixing the 1-1.6 pts. wt. surfactant with mixed resin powder , activating at 68-72 degrees C for 1-1.3 hours, centrifuging at 150-180 revolutions/minute to obtain an activated mixed resin powder; (iii) pulverizing 1.8-4.2 pts. wt. graphene, sieving200-300 meshes sieve to obtain a powder, the resulting powder has a magnetic field intensity of 7000-8200GS at ultrasonic power 520-650W, at 52-56 degrees C, stirring at 200-300 revolutions/minute for 40-50 minutes to obtain graphene energy powder; (iv) mixing the activated mixed resin powder and graphene energy powder under nitrogen protection comprising adding 54-76 pts. polylactic acid, 46-62 pts. dimeric sodium phosphate, 12-16 pts. chlorophenylstyrene, 10-14 pts. Maleic anhydride grafted polypropylene, 8-12 pts. carboxymethyl cellulose sodium, 4-6 pts. Kevlar fiber (RTM: para-aramid synthetic fiber), 3-5 pts. polybutylene terephthalate fiber, 0.4-0.8 pts. conditioning agent, 0.3-0.5 pts. generating agent, 0.4-0.8 pts. crosslinking agent, 0.7-1.3 pts. compatibilizer, 0.5-1 pts. bridging agent, 0.3-0.5 pts. catalyst, 0.5-0.8 pts. plasticizer, 0.3-0.5 pts. dispersant and 0.4-0.7 pts. tackifier heating in microwave power of 300-350W, at 138-145 degrees C , stirring at 200-400 revolutions/minute for 3-4 hours to obtain mixture 1; (v) mixing 1-23 pts. curing agent, 0.3-0.5 pts. antioxidant, 0.2-0.4 pts. stabilizer, 1.2-1.8 pts. anti-aging agent and 1.8-2.4 pts. flame retardant with mixture 1 heating at 76-80 degrees C, stirring at 150-250 revolutions/minute for 1.6-2 hours to obtain mixture II; and (vi) extruding the mixture II in screw extruder at 190-200 degrees C and stirring at 125-140 revolutions/minute.