▎ 摘　　要

NOVELTY - A fireproof coating comprises Portland cement, perlite, calcined kaolin, expanded vermiculite, hollow fly ash floating beads, sodium lignosulfonate, KH-550 (RTM: gamma -aminopropyltriethoxysilane), 15-20 pts. wt. polymer-modified graphene and KH-560 (RTM: gamma -glycidoxypropyltrimethoxysilane). The polymer-modified graphene oxide is prepared by adding amino-terminated block copolymer and dimethyl sulfoxide to a beaker, stirring, adding KH-560 (RTM: gamma -glycidoxypropyltrimethoxysilane) and graphene oxide, increasing the temperature to 80 degrees C, filtering and drying. USE - Fireproof coating is used for tunnel. ADVANTAGE - The fireproof coating has excellent adhesiveness, stain resistance, wear resistance, weather resistance and water resistance. DETAILED DESCRIPTION - A fireproof coating comprises 30 pts. wt. Portland cement, 1-10 pts. wt. perlite, 1-20 pts. wt. calcined kaolin, 1-20 pts. wt. expanded vermiculite, 1-20 pts. wt. hollow fly ash floating beads, 1-5 pts. wt. sodium lignosulfonate, 1-10 pts. wt.KH-550 (RTM: gamma -aminopropyltriethoxysilane), 15-20 pts. wt. polymer-modified graphene and 2-10 pts. wt. KH-560 (RTM: gamma -glycidoxypropyltrimethoxysilane). The polymer-modified graphene oxide is prepared by adding 3 g amino-terminated block copolymer and 150 mL dimethyl sulfoxide to a 200 mL-beaker, stirring at 80 degrees C, adding 5 g KH-560 (RTM: gamma -glycidoxypropyltrimethoxysilane) and 10 g graphene oxide, increasing the temperature to 80 degrees C for 2 hours, pouring the resultant mixture into deionized water, filtering and vacuum drying the resultant filter cake at 120 degrees C for 4 hours. The amino-terminated block copolymer is prepared by adding 1.6 mmol 2,2'-bis(4-sulfophenoxy)biphenylenediamine, 12.5 mL m-cresol and 0.8 mL of triethylamine to a 100 mL-dry three-necked flask, introducing nitrogen gas, magnetically-stirring, adding 1.5 mmol perylene-3,4,9,10-tetracarboxylic anhydride, 3 mmol of benzoic acid and 0.6 mL isoquinoline, reacting at room temperature for 1 hours, increasing the temperature to 80 degrees C for 4 hours, further reacting at 180 degrees C for 20 hours, obtaining amino-terminated sulfonated polyimide prepolymer, adding 0.095 mmol 1,4,5,8-naphthalene tetracarboxylic acid anhydride, 4 mL m-cresol, stirring at room temperature for 1 hour, increasing the temperature to 180 degrees C for 20 hours, reacting, reducing the temperature to 80 degrees C, pouring the resultant reaction mixture into 150 mL methanol, washing the resultant product with methanol, collecting polymer by filtration and drying in a vacuum oven at 130 degrees C for 10 hours. 1,4,5,8-Naphthalene tetracarboxylic acid anhydride-terminated polypyrrole prepolymer is prepared by adding 10 mmol 3,3'-diaminobenzidine, 11 mmol 1,4,5,8-naphthalene tetracarboxylic acid anhydride, 22 mmol benzoic acid, 3 mL isoquinoline and 40 mL m-cresol to a 100 mL-dry three-necked flask, introducing nitrogen gas, magnetically-stirring for 2 hours, reacting at 85 degrees C for 6 hours, increasing the temperature to 190 degrees C for 21 hours, cooling the resultant reaction mixture to 70 degrees C, pouring the resultant mixture into 150 mL methanol, obtaining solid precipitate, filtering and drying in a vacuum oven at 160 degrees C for 20 hours.