▎ 摘　　要

NOVELTY - Composite material comprises 163-207 pts. wt. polyvinylchloride material, 54-68 pts. wt. graphene, 12-18 pts. wt. Polyethylene glycol, 6-13 pts. wt. vinyl tris(2-methoxyethoxy) silane, 10-14 pts. wt. butylated amino resin, 7-11 pts. wt. benzene, 9-14 pts. wt. modified starch, 4-8 pts. wt. bentonite, 2-5 pts. wt. carbon black, 3-6 pts. wt. zinc oxide, 2-4 pts. wt. titanium dioxide, 2-3 pts. wt. dolomite powder, 4-6 pts. wt. polyvinyl alcohol fiber, 5-8 pts. wt. polyvinyl chloride fibers, 3-5 pts. wt. glass fiber, 6-12 pts. wt. brominated paraffin, 2-3 pts. wt. ethylene-ethyl acrylate copolymer. USE - Composite material used in hotel, restaurant, building and decoration. ADVANTAGE - The composite material has improved mechanical strength, toughness, wear resistance, impact resistance, thermal stability and flame retardant property. DETAILED DESCRIPTION - Composite material comprises 163-207 pts. wt. polyvinylchloride material, 54-68 pts. wt. graphene, 12-18 pts. wt. Polyethylene glycol, 6-13 pts. wt. vinyl tris(2-methoxyethoxy) silane, 10-14 pts. wt. butylated amino resin, 7-11 pts. wt. benzene, 9-14 pts. wt. modified starch, 4-8 pts. wt. bentonite, 2-5 pts. wt. carbon black, 3-6 pts. wt. zinc oxide, 2-4 pts. wt. titanium dioxide, 2-3 pts. wt. dolomite powder, 4-6 pts. wt. polyvinyl alcohol fiber, 5-8 pts. wt. polyvinyl chloride fibers, 3-5 pts. wt. glass fiber, 6-12 pts. wt. brominated paraffin, 2-3 pts. wt. ethylene-ethyl acrylate copolymer, 3-6 pts. wt. polyvinyl acetate emulsion, 4-7 pts. wt. dimethyl silicone oil, 1-2 pts. wt. triethanolamine, 0.4-0.8 pts. wt. surface active agent, 0.3-0.6 pts. wt. initiator 0.3-0.5 pts. wt. crosslinking agent, 0.2-0.3 pts. wt. catalyst, 0.1-0.2 pts. wt. accelerator, 0.3-0.5 pts. wt. flexibilizer, 0.4-0.6 pts. wt. plasticizer, 0.2-0.5 pts. wt. tackifier, 0.3-0.4 pts. wt.dispersant, 0.8-1.2 parts curing agent, 0.7-1.2 pts. wt. antibacterial agent, 0.3-0.6 pts. wt. antioxidant, 0.2-0.3 pts. wt. light stabilizer, 0.3-0.5 pts. wt. ultraviolet absorbing agent, 1.3-1.6 pts. wt. flame retardant. The modified starch comprises 86-118 pts. wt. cassava starch, 10-14 pts. wt. isoamyl acetate, 8-12 pts. wt. dimethylacetamide, 2-4 pts. wt. epichlorohydrin, 1.8-3.2 pts. wt. carbamide, 1-2 pts. wt. potassium hydroxide, 0.4-0.7 pts. wt. 2,5-di(tert-butylperoxy)-2,5-dimethyl-3-hexyne, 0.1-0.2 pts. wt. platinum catalyst, 0.2-0.3 pts. wt. organic tin stabilizer, 0.4-0.6 pts. wt. polyoxyethylene polyoxypropylene pentaerythritol ether, 0.3-0.5 pts. wt. propyltrimethoxysilane and 0.2-0.4 pts. wt. boric acid. The initiator is benzoyl peroxide. The crosslinking agent is methacrylamide. The catalyst is tris (dimethylaminopropyl) hexahydrotriazine. The accelerator is colorless cobalt. The plasticizer is tricaprylyl citrate. The toughening agent is polypropylene rubber and the dispersant is nitrocellulose based dispersant. The flame retardant comprises 45-62 pts. wt. tertiary butoxyethyl phosphate, 18-32 pts. wt. tris (2,4-di-tert-butylphenyl) phosphite, 15-22 pts. wt. ammonium polyphosphate, 10-18 pts. wt. pentaerythritol, 9-14 pts. wt. urea, 6-10 pts. wt. aluminum hydroxide, 8-12 pts. wt. antimony trioxide, 4-8 pts. wt. manganese oxide, 6-12 pts. wt. active carclazyte, 1.2-1.5 pts. wt. penetrating agent, 0.6-0.9 pts. wt. potentiating agent. The preparation of graphene modified polyvinylchloride material involves crushing the graphene, by 300-500 sieve to obtain the powder. The obtained powder is treated magnetically at 40-50 degrees C with a stirring speed of 200-300 revolutions per minute for 20-35 minutes to obtain graphene energy powder. The surfactant is added to the obtained graphene energy powder at 56-72 degrees C with a rotation speed of 100-130 revolutions per minute for 1-1.5 hours to obtain activated graphene energy powder. The obtained activated graphene energy powder prepared under nitrogen protection is added with polyvinylchloride material, polyether polyols, Vinyl tris(2-methoxyethoxy) silane, butylated amino resin, bentonite, carbon black, zinc oxide, titanium dioxide, dolomite powder, polyvinyl alcohol fiber, polyvinyl chloride fiber, glass fiber, brominated paraffin, ethylene-ethyl acrylate copolymer, polyvinyl acetate emulsion, dimethyl silicon oil, triethanolamine, initiator, crosslinking agent, catalyst, accelerator, plasticizer, flexibilizer, dispersant, tackifier at 128-135 degrees C and the rotating speed is 300-500 revolutions per minute for 2.4-3.2 hours to obtain the first mixture. The modified starch, curing agent, antibacterial, antioxidant, light stabilizer, ultraviolet absorber and flame retardant are added to the obtained first mixture at 71-75 degrees C with a speed of 100-200 revolutions per minute for 1-1.4 hours to obtain second mixture. The preparation of the modified starch involves preparing first cassava starch slurry, isoamyl acetate, dimethylacetamide, 2,5-di(tert-butylperoxy)-2,5-dimethyl-3-hexyne, platinum catalyst are added to the obtained first cassava starch slurry at 52-56 degrees C with stirring speed of 90-130 revolution per minute under the cross-linking grafting reaction for 2.4-3 hours to obtain second cassava starch slurry. A pasteurizer is added to the obtained second cassava starch slurry to adjust the pH value to 9.5-9.8, followed by the addition of epichlorohydrin, urea, propyltrimethoxysilane, boric acid at 61-65?0C with a Stirring speed of 100-160 revolution per minute under the cross-linking reaction for 1.2-1.6 hours to obtain third cassava starch slurry. The organic tin stabilizer is added to the obtained third cassava starch slurry to adjust the pH value to 8.8-9.1, then poly oxyethylene polyoxypropylene pentaerythritol ether is added at a speed of 80-100 revolution per minute for 12-14 minutes to obtain modified starch. The preparation of flame retardant involves adding ammonium polyphosphate, 200-265 pts. water to a microwave reactor with a stirring speed of 400-600 revolution per minute for 5-9 minutes to obtain third mixture, tris(2-butoxyethyl) phosphate, tris(2,4-di-tert-butylphenyl) phosphite, pentaerythritol, urea, aluminum hydroxide, antimony trioxide, manganese oxide, activated clay, penetrating agent and synergistic agent is added to the obtained third mixture at 84-92 degrees C with a stirring speed of 300-500 revolutions per minute for 1.8-2.5 hours to obtain fourth mixture.The obtained fourth mixture is cooled, filtered the precipitate and dried at a rotational speed of 3000-5000 revolutions per minute to obtain flame retardant. The obtained second mixture is fed into the double screw-type extrusion granulator and granulated at 142-148 degrees C to obtain new graphene modified polyvinylchloride material.