▎ 摘　　要

NOVELTY - Preparation of self-crosslinking modified graphene oxide/water-based resin anticorrosive coating involves separately preparing aminated graphene oxide and emulsified water-based resin curing agent; adding 0.1-0.3 pts. wt. aminated graphene oxide into 15-20 pts. wt. alcohol ether solvent; uniformly dispersing for 30-60 minutes to obtain aminated graphene oxide dispersion; mixing aminated graphene oxide dispersion with 30-50 pts. wt. emulsified aqueous resin curing agent; stirring and uniformly mixing to obtain graphene-modified emulsified aqueous resin curing agent; adding 10-20 pts. wt. graphene-modified emulsified water-based resin curing agent with 40 pts. wt. water-based resin; heating at 25-35 degrees C; ultra-high dispersing at 1000-2000 revolutions per minute; adding 50-60 pts. wt. deionized water; and emulsifying to obtain aqueous aminated graphene oxide/water-based resin anticorrosive coating. USE - The method is for preparation of self-crosslinking modified graphene oxide/water-based resin anticorrosive coating. ADVANTAGE - The anticorrosive coating is environment-friendly, has convenient operation and no pollution, has excellent mechanical strength, water and alcohol resistance, high adhesion strength, and excellent anticorrosive performance. DETAILED DESCRIPTION - Preparation of self-crosslinking modified graphene oxide/water-based resin anticorrosive coating comprises: (1) preparing aminated graphene oxide by putting 0.2-0.5 pts. wt. graphene oxide, 10-20 pts. wt. polyamine, and 100-150 pts. wt. deionized water in container; putting container in ice water bath for ultrasonication for 45-60 minutes; removing ultrasonic instrument; stirring reaction for 24-36 hours at 20-40 degrees C; standing overnight; removing supernatant to obtain precipitate; adding 100 pts. wt. anhydrous ethanol to precipitate for suction filtration; washing with deionized water to remove excess unreacted polyamines and to obtain black powder; dispersing black powder into 20-50 pts. wt. deionized water; adding 0.1-0.3 pts. wt. cetyltrimethylammonium bromide; sonicating for 10-30 minutes; and freeze-drying to obtain aminated graphene oxide; (2) preparing emulsified water-based resin curing agent by weighing 10-20 pts. wt. water-based resin; adding 10-20 pts. wt. alcohol-ether solvent; stirring until water-based resin is dissolved to obtain alcohol-ether solution of water-based resin; adding 7-14 pts. wt. dehydrated triethylenetetramine and 2-4 pts. wt. alcohol ether solvent to reactor; heating at 70 degrees C; slowly adding alcohol-ether solution of aqueous resin for 3 hours; continue reacting for 1 hour; slowly adding 2-5 pts. wt. trimethylolpropane triglycidyl ether for 1 hour; reacting for 1 hour; dropping 2-5 pts. wt. methyl polyoxyethylene epoxy ether for 1 hour; and reacting for 1 hour to prepare emulsified aqueous resin curing agent; (3) preparing graphene modified emulsified water-based resin curing agent by adding 0.1-0.3 pts. wt. aminated graphene oxide into 15-20 pts. wt. alcohol ether solvent; uniformly dispersing for 30-60 minutes to obtain aminated graphene oxide dispersion; mixing aminated graphene oxide dispersion with 30-50 pts. wt. emulsified aqueous resin curing agent; and stirring and uniformly mixing to obtain graphene-modified emulsified aqueous resin curing agent; and (4) preparing water-based anticorrosive coating by weighing 10-20 pts. wt. graphene-modified emulsified water-based resin curing agent; adding 40 pts. wt. water-based resin; heating at 25-35 degrees C; ultra-high dispersing at 1000-2000 revolutions per minute; adding 50-60 pts. wt. deionized water; and emulsifying to obtain aqueous aminated graphene oxide/water-based resin anticorrosive coating.