▎ 摘　　要

NOVELTY - A material and its preparation method and application are claimed. The material comprises graphene, waste plastics, chloroprene rubber, polylactic acid, potassium tetraphosphate, 2-hydroxy-4-(octyloxy)benzophenone, butylenebis(stearamide), ethylene glycol monostearate, tributoxyethyl phosphate, tris(2,4-di-tert-butylphenyl) phosphite, PVC fiber, polyvinyl alcohol fiber, surfactant, modifier, generating agent, crosslinking agent, compatibilizer, bridging agent, catalyst, plasticizer, dispersant, tackifier, curing agent, antioxidant, stabilizer and anti-aging agent. USE - The material is useful in three-dimensional printing shoe product (claimed). ADVANTAGE - The material is environmentally-friendly, and has high tensile strength. DETAILED DESCRIPTION - A material and its preparation method and application are claimed. The material comprises 2-4 pts. wt. graphene, 60-112 pts. wt. waste plastics, 32-80 pts. wt. chloroprene rubber, 34-55 pts. wt. polylactic acid, 14-22 pts. wt. potassium tetraphosphate, 16-23 pts. wt. 2-hydroxy-4-(octyloxy)benzophenone, 18-30 pts. wt. butylenebis(stearamide), 9-14 pts. wt. ethylene glycol monostearate, 4-19 pts. wt. tributoxyethyl phosphate, 10-17 pts. wt. tris(2,4-di-tert-butylphenyl) phosphite, 5-10 pts. wt. PVC fiber, 4-8 pts. wt. polyvinyl alcohol fiber, 1.2-1.8 pts. wt. surfactant, 0.6-1 pt. wt. modifier, 0.4-0.6 pt. wt. generating agent, 0.4-0.8 pt. wt. crosslinking agent, 0.6-1.2 pts. wt. compatibilizer, 0.6-1.2 pts. wt. bridging agent, 0.3-0.6 pt. wt. catalyst, 0.4-0.8 pt. wt. plasticizer, 0.3-0.5 pt. wt. dispersant, 0.3-0.6 pt. wt. tackifier, 1.2-2.5 pts. wt. curing agent, 0.3-0.5 pt. wt. antioxidant, 0.2-0.4 pt. wt. stabilizer, 1-1.6 pts. wt. anti-aging agent, 1.5-2 pts. wt. flame retardant and 2-4 pts. wt. smoke suppressant. The surfactant is polyoxyethylene-polyoxypropylene copolymer. The generating agent is aerosol generating agent. The crosslinking agent is SAC-100 crosslinking agent. The compatibilizer is maleic anhydride grafting compatibilizer. The bridging agent is an acrylic bridging agent. The catalyst is vanadium pentoxide. The plasticizer is citrate ester. The dispersant is sodium poly((naphthaleneformaldehyde)sulfonate). The tackifier is butyltrimethoxysilane. The curing agent is an epoxy resin curing agent. The antioxidant is N,N'-1,6-hexanediylbis-3,5-bis(1,1-dimethylethyl)-4-hydroxy-benzenepropanamide. The stabilizer is modified bentonite heat stabilizer. The anti-aging agent is 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol. The flame retardant comprises 60-68 pts. wt. ethylene glycol 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. antimony trioxide, 7-10 pts. wt. lead oxide, 8-12 pts. wt. bentonite and 1-2 pts. wt. penetrant. The smoke suppressant comprises 32-42 pts. wt. tributyltin oxide, 16-21 pts. wt. lead hydroxide, 12-20 pts. wt. diatomaceous earth, 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 material, which involves: (S1) cleaning waste plastic, then drying to moisture content of less than or equal to 0.8%, mixing dried plastic and chloroprene rubber, crushing and sieving through 200-300 mesh sieve to obtain plastic powder; (S2) adding surfactant to plastic powder prepared in step (S1), and activating at a temperature of 70-74 degrees C and rotational speed of 150-180 rpm for 1.2-1.8 hours to prepare activated plastic powder; (S3) crushing graphene over 200-300 mesh sieve to obtain graphene powder, where the resulting powder has magnetic field strength of 7000-8200 GS, performing ultrasonic treatment using power of 520-650 W at temperature of 52-56 degrees C and speed of 200-300 rpm, and stirring for 42-55 minutes to prepare graphene energy powder; (S4) adding polylactic acid, potassium tetraphosphate, 2-hydroxy-4-(octyloxy)benzophenone, butylenebis(stearamide), ethylene glycol monostearate, tributyloxyethyl phosphate, tris(2,4-di-tert-butylphenyl) phosphite, PVC fiber, polyvinyl alcohol fiber, modifier, generating agent, crosslinking agent, compatibilizer, bridging agent, catalyst, plasticizer, dispersant and thickener to activated plastic powder prepared in step (S2) and graphene energy powder prepared in step (S3) under nitrogen protection, performing ultrasonic treatment using microwave power of 320-360 W at temperature of 135-142 degrees C and speed of 200-400 rpm, and stirring for 2.8-4.2 hours to obtain mixture (I); (S5) adding curing agent, antioxidant, stabilizer, anti-aging agent, flame retardant and smoke suppressant to mixture (I) prepared in step (S4), and stirring at a temperature of 76-80 degrees C and speed of 150-250 rpm for 1.6-2 hours to obtain mixture (II); and (S6) placing mixture (II) prepared in step (S5) in screw extruder, and extruding at temperature of 190-200 degrees C and speed of 125-140 rpm.