▎ 摘　　要

NOVELTY - A graphene modified flame-retardant type bamboo plastic material comprises waste plastic, bamboo powder, polylactic acid, dimeric sodium phosphate, acrylate, graphite, surfactant, regulator, generating agent, crosslinking agent, catalyst, dispersant, plasticizer, tackifier, curing agent, antioxidant, heat stabilizer, anti-aging agent, flame retardant and smoke inhibitor. USE - Graphene modified flame-retardant type bamboo plastic material used for three dimensional printing (claimed). ADVANTAGE - The material has economic benefits, good flame retardant effect, excellent performance and strong impact resistance and toughness. DETAILED DESCRIPTION - A graphene modified flame-retardant type bamboo plastic material comprises 165-224 pts. wt. waste plastic, 100-153 pts. wt. bamboo powder, 40-54 pts. wt. polylactic acid, 30-42 pts. wt. dimeric sodium phosphate, 24-30 pts. wt. acrylate, 2-4 pts. wt. graphite, 1-1.6 pts. wt. surfactant, 0.4-0.8 pt. wt. regulator, 0.3-0.5 pt. wt. generating agent, 0.5-0.8 pt. wt. crosslinking agent, 0.3-0.5 pt. wt. catalyst, 0.4-0.7 pt. wt. dispersant, 0.3-0.5 pt. wt. plasticizer, 0.3-0.4 pt. wt. tackifier, 1-2 pts. wt. curing agent, 0.2-0.4 pt. wt. antioxidant, 0.2-0.4 pt. wt. heat stabilizer, 0.8-1.5 pts. wt. anti-aging agent, 1.3-1.8 pts. wt. flame retardant and 1-1.5 pts. wt. smoke inhibitor. The surfactant is polyoxyethylene-polyoxypropylene copolymer. The regulator is ACR; the generating agent is aerosol generating agent. The crosslinking agent is crosslinking agent SAC-100. The catalyst is vanadium pentoxide. The plasticizer is tricaprylyl citrate. The dispersant is a dispersant MF. The tackifier is butyl trimethoxysilane. The curing agent is epoxy resin curing agent. The antioxidant is antioxidant 1098. The heat stabilizer is dibasic lead phthalate. The anti-aging agent is BASF UV-234 anti-aging agent. The flame retardant comprises 60-68 pts. wt. ethylene glycol monoethyl ether acetate, 25-28 pts. wt. caprylic capric triglyceride, 22-24 pts. wt. nonylphenol polyoxyethylene ether sulfate, 18-22 pts. wt. polyoxypropylene triol, 14-16 pts. wt. urea, 10-12 pts. wt. aluminum oxide, 9-11 pts. wt. antimonous oxide, 7-10 pts. wt. lead oxide, 8-12 pts. wt. bentonite and 1-2 pts. wt. penetrating agent. The smoke inhibitor comprises 32-42 pts. wt. tributyl tin, 16-21 pts. wt. lead hydroxide, 12-20 pts. wt. diatomite, 8-10 pts. wt. aluminum hydroxide, 4-6 pts. wt. ammonium molybdate and 1.5-2 pts. wt. stearic acid. An INDEPENDENT CLAIM is included for preparation of graphene modified flame-retardant type bamboo plastic material comprising cleaning and drying waste plastic to water content of less than 0.8%, crushing and sieving by 200-300 mesh to obtain plastic powder, adding surfactant, activating at 70-74 degrees C for 1.2-1.8 hours at speed of 150-180 revolutions/minute (rpm) to prepare activated plastic powder, crushing graphene, passing through 200-300 mesh sieve to obtain powder, ultrasonically processing at 52-56 degrees C at magnetic field intensity of 7000-8200 GS, ultrasonic power of 520-650 W and rotating speed of 200-300 rpm, stirring for 42-55 minutes to obtain graphene powder, adding to activated plastic powder with bamboo powder, polylactic acid, dimeric sodium phosphate, acrylate, regulator, generating agent, crosslinking agent, catalyst, plasticizer, dispersant and tackifier under nitrogen protection, processing to 132-140 degrees C for 3-4 hours at microwave power of 260-270 W and speed of 200-400 rpm to obtain mixture I, adding curing agent, antioxidant, heat stabilizer, anti-aging agent, flame retardant and smoke suppressant, processing to 72-75 degrees C for 1.8-2.2 hours at speed of 100-200 rpm to obtain mixture II, adding into screw extrusion forming machine, and extruding at 190-200 degrees C at speed of 125-140 rpm.