▎ 摘　　要

NOVELTY - Anti-leakage waterproof coating comprises 20-45 pts. wt. organosilicone resin emulsion, 5-8 pts. wt. organosilicone waterproof agent, 2-7 pts. wt. prefabricated graphene dispersion, 0.1-0.6 pts. wt. emulsion defoaming agent, 0.1-0.4 pts. wt. sodium carboxymethyl cellulose, 2-4 pts. wt. silica, 1-2 pts. wt. polyacrylate, 3-5 pts. wt. gangue powder, 4-7 pts. wt. nano silicon hydroxyapatite powder, 3-4 pts. wt. organic bentonite, 2-3 pts. wt. bis dodecanol ester and 0.5-1 pts. wt. perfluorooctane sulfonamide. USE - Used as anti-leakage waterproof coating. ADVANTAGE - The coating has low temperature resistance property (claimed), high elasticity, integrity and long-service life, and does not crack. DETAILED DESCRIPTION - Anti-leakage waterproof coating comprises 20-45 pts. wt. organosilicone resin emulsion, 5-8 pts. wt. organosilicone waterproof agent, 2-7 pts. wt. prefabricated graphene dispersion, 0.1-0.6 pts. wt. emulsion defoaming agent, 0.1-0.4 pts. wt. sodium carboxymethyl cellulose, 2-4 pts. wt. silica, 1-2 pts. wt. polyacrylate, 3-5 pts. wt. gangue powder, 4-7 pts. wt. nano silicon hydroxyapatite powder, 3-4 pts. wt. organobentonite, 2-3 pts. wt. bis dodecanol ester and 0.5-1 pts. wt. perfluorooctane sulfonamide. The prefabricated graphene dispersion comprises 15-20 pts. wt. graphite, 8-12 pts. wt. potassium persulfate, 2-3 pts. wt. hexadecyl trimethylammonium bromide, 1-2 pts. wt. polyvinylpyrrolidone, 1-2 pts. wt. benzylamine, 20-40 pts. wt. anhydrous alcohol and 100-150 pts. wt. distilled water. The preparation of prefabricated graphene dispersion comprises preparing graphite oxide from graphite powder using Hummers method, ultrasonically dispersing graphite oxide in distilled water for 1-3 hours, adding mixed solution of ethanol and distilled water in volume ratio of 8:1, ultrasonically treating for 1-2 hours, mechanical stirring and adding hexadecyl trimethylammonium bromide, reacting at 70-80 degrees C for 2-4 hours, filtering, washing using anhydrous alcohol and deionized water for many times, drying until bromine ion is not detected, placing dried material in a container, magnetic stirring and adding polyvinylpyrrolidone, mixing uniformly for 1-2 hours, and ultrasonically dispersing in distilled water to obtain dispersion. The emulsion defoaming agent comprises 1-2 pts. wt. lauryl alcohol, 10-13 pts. wt. polyether modified polysiloxane, 1-2 pts. wt. 1,2-benzisothiazolin-3-one, 0.2-0.4 pts. wt. sorbitan trioleate, 0.3-0.5 pts. wt. polyethylene glycol stearate, 10- 20 pts. wt. water, 1-2 pts. wt. polytetrafluoroethylene superfine powder, 2-3 pts. wt. hydrophobic white carbon black, 1-2 pts. wt. guar gum, 0.4-0.6 pts. wt. aluminum stearate, 1-2 pts. wt. anilinomethyltrimethoxysilane and 1-2 pts. wt. zinc sulfate. The preparation of emulsion defoaming agent comprises (i) mixing anilinomethyltrimethoxysilane, hydrophobic white carbon black and polytetrafluoroethylene superfine powder; (ii) adding sorbitan trioleate and polyethylene glycol stearate, heating to 40-60 degrees C, mixing uniformly, adding product obtained in the step (i), high speed stirring for 20-40 minutes, adding remaining components except deionized water, controlling temperature to 70-80 degrees C and low speed stirring; and (iii) adding deionized water slowly into step (ii) obtained product, uniformly stirring, cooling, stopping stirring when the temperature reduces to room temperature, milling resulting material in colloid mill for 2-3 times to obtain emulsion defoaming agent. An INDEPENDENT CLAIM is also included for preparing the anti-leakage waterproof coating comprising: (a) adding organosilicone resin emulsion into reaction kettle, stirring at 500 revolutions/minute, adding organosilicone waterproof agent, dispersing for 5-6 minutes, adding prefabricated graphene dispersion, continuously stirring for 5-7 minutes; (b) adding 50-60 wt.% emulsion defoaming agent in step (a) obtained product, dispersing, stirring for 5-7 minutes, adding sodium carboxymethyl cellulose, dispersing for 8-10 minutes, until particles completely dissolving, increasing the speed to 800 revolutions per minute, adding silica, gangue powder, nano silicon hydroxyapatite powder and organic bentonite, dispersing and mixing for 15-20 minutes; and (c) adding remaining amount of the emulsion defoaming agent into step (b), dispersing for 5-10 minutes, milling resulting material in colloid mill and filtering to obtain product.