▎ 摘　　要

NOVELTY - Thin type dry powder steel structure fireproof coated material comprises 30 pts. wt. white cement, 1-10 pts. wt. titanium white powder, 1-20 pts. wt. calcined kaolin clay, 1-20 pts. wt. calcium carbonate, 1-10 pts. wt. polydimethylsiloxane, 5-10 pts. wt. polymer modified graphene oxide, 5-10 pts. wt. sulfonated polybenzimidazole modified mesoporous silica, 2-10 pts. wt. epoxy-functional silane (KH-560) and 0-0.1 pts. wt. aeolian sand, where polymer modified graphene oxide is prepared by e.g. preparing 1,4,5,8-naphthalenetetracarboxylic dianhydride terminated polypyrrole prepolymer. USE - Used as thin type dry powder steel structure fireproof coated material. ADVANTAGE - Thin type dry powder steel structure fireproof coated material has excellent fireproof performance, strong adhesive force, good wear resistance, excellent weather resistance and water resistance, good radiation, smooth coating surface and is environmentally-friendly. DETAILED DESCRIPTION - Thin type dry powder steel structure fireproof coated material comprises 30 pts. wt. white cement, 1-10 pts. wt. titanium white powder, 1-20 pts. wt. calcined kaolin clay, 1-20 pts. wt. calcium carbonate, 1-10 pts. wt. polydimethylsiloxane, 5-10 pts. wt. polymer modified graphene oxide, 5-10 pts. wt. sulfonated polybenzimidazole modified mesoporous silica, 2-10 pts. wt. epoxy-functional silane (KH-560) and 0-0.1 pts. wt. aeolian sand, where polymer modified graphene oxide is prepared by (i) adding 10 mmol 3,3'-diaminobenzidine, 11 mmol 1,4,5,8-naphthalenetetracarboxylic dianhydride, 22 mmol benzoic acid, 3 ml isoquinoline and 40 ml m-cresol into 100 ml dry three-necked flask under nitrogen protection and magnetic stirring, reacting for 2 hours, increasing temperature at 85 degrees C for 6 hours, again reacting at 190 degrees C for 21 hours, reducing temperature to 70 degrees C and pouring mixture into 150 ml methanol to obtain large amount of solid precipitate, washing the product with methanol, suction filtering and collecting polymer, drying in vacuum oven at 160 degrees C for 20 hours to obtain 1,4,5,8-naphthalenetetracarboxylic dianhydride terminated polypyrrole prepolymer, (ii) adding 1.6 mmol 2,2'-bis(4-sulfophenoxy)biphenylenediamine, 12.5 ml m-cresol and 0.8 ml triethylamine into 100 ml dry three-necked flask under nitrogen protection and magnetic stirring, dissolving 2,2'-bis(4-sulfophenoxy)biphenylenediamine, then adding 1.5 mmol 3,4,9,10-perylenetetracarboxylic anhydride, 3.0 mmol benzoic acid and 0.6 ml isoquinoline, stirring at room temperature for 1 hour, heating at 80 degrees C, reacting for 4 hours, reacting at 180 degrees C for 20 hours, cooling at room temperature to obtain amino-terminated sulfonated polyimide prepolymer, (iii) carrying out block copolymerization reaction, adding 0.095 mmol 1,4,5,8-naphthalenetetracarboxylic dianhydride terminated polypyrrole prepolymer and 4 ml m-cresol into the reaction solution, stirring at room temperature for 1 hour and heating at 180 degrees C for 20 hours, lowering temperature to 80 degrees C and pouring mixture into 150 ml methanol to obtain large number of filamentous products, washing the product with methanol, suction filtering and collecting polymer, drying in vacuum oven at 130 degrees C for 10 hours to obtain amino-terminated block copolymer, and (iv) adding 3 g amino-terminated block copolymer and 150 ml dimethyl sulfoxide into 200 ml beaker, dissolving by stirring at 80 degrees C, adding 5 g KH-560 and 10 g graphene oxide and heating mixture at 80 degrees C and stirring for 2 hours, pouring mixture into deionized water and filtering, drying filter cake in vacuum at 120 degrees C for 4 hours to obtain polymer modified graphene oxide; preparation method of the sulfonated polybenzimidazole modified mesoporous silicon comprises (a) dissolving 0.1 mol 3,3'-diaminobenzidine in 1000 g polyphosphoric acid containing 86 wt.% phosphorus pentoxide, then adding 0.05 mol 5-aminoisophthalic acid and 0.04 mol 5-sulfoisophthalic acid into the reaction solution, reacting at 210 degrees C for 15 hours, cooling down to room temperature, precipitating water, then neutralizing with aqueous ammonia, filtering, drying in vacuum at 120 degrees C to obtain amino-terminated sulfonated polybenzimidazole prepolymer, (b) adding 100 ml deionized water, KH-560 and 20 g mesoporous silica MCM-41 with stirring into 1000 ml flask equipped with a stirrer, thermometer and condenser of the metal reaction vessel, reacting at room temperature for 30 minutes and then filtering to obtain silane modified mesoporous silicon, and (c) adding 1.8 g amino-terminated sulfonated polybenzimidazole prepolymer and 150 ml dimethyl sulfoxide into 300 ml beaker, stirring at 75 degrees C for dissolution, then adding 15 g silane-modified mesoporous silicon and heating mixture at 80 degrees C and stirring for 3 hours, pouring mixture into deionized water, and filtering, vacuum drying filter cake at 110 degrees C for 12 hours to obtain polybenzimidazole-modified mesoporous silica. An INDEPENDENT CLAIM is also included for preparing thin type dry powder steel structure fireproof coated material comprising fully mixing all raw materials into mixer for 10 minutes, and discharging to obtain final product.