▎ 摘　　要

NOVELTY - Polymerizing Graphene in-situ modified conductive anti-corrosion aqueous emulsion involves preparing graphene oxide powder by mixing 100 pts. wt. graphite raw material and 50 pts. wt. sodium nitrate, adding 2300 mL concentrated acid solution, cooling to 0 degrees C for ice bath, stirring and mixing and performing exotherm reaction, then slowly adding 300 pts. wt. oxidant to controlling the reaction speed to prevent the solution reaction temperature from exceeding 20 degrees C in ice bath and raising temperature to 36 degrees C for 30 minutes. 5.0 liters water is slowly added, and the temperature is maintained at 98 degrees C for 15 minutes, diluted with 14 liters of hot water and gradually added with 36% hydrogen peroxided treatment until the solution is colorless. The graphene oxide is washed with pure water by centrifugation, the graphene slurry is diluted with 0.5% pure water, and graphene oxide is treated by a nanodisk mill at room temperature for 1-3 hours to obtain slurry. USE - Method for polymerizing Graphene in-situ modified conductive anti-corrosion aqueous emulsion. ADVANTAGE - The method enables to polymerize graphene in-situ modified conductive anti-corrosion aqueous emulsion in environment-friendly manner and cost effective manner. DETAILED DESCRIPTION - Polymerizing Graphene in-situ modified conductive anti-corrosion aqueous emulsion involves preparing graphene oxide powder by mixing 100 pts. wt. graphite raw material and 50 pts. wt. sodium nitrate, adding 2300 mL concentrated acid solution, cooling to 0 degrees C for ice bath, stirring and mixing and performing exotherm reaction, then slowly adding 300 pts. wt. oxidant to controlling the reaction speed to prevent the solution reaction temperature from exceeding 20 degrees C in ice bath and raising temperature to 36 degrees C for 30 minutes. 5.0 liters water is slowly added, and the temperature is maintained at 98 degrees C for 15 minutes, diluted with 14 liters of hot water and gradually added with 36% hydrogen peroxided treatment until the solution is colorless. The graphene oxide is washed with pure water by centrifugation, the graphene slurry is diluted with 0.5% pure water, and graphene oxide is treated by a nanodisk mill at room temperature for 1-3 hours to obtain slurry, and dried at 80 degrees C to obtain graphene oxide powder. The acrylamide-modified graphene oxide is prepared by 10 pts. wt. graphene oxide powder and 1-2 pts. wt. modifier. The rapidly mixed, argon-protected and heated to 150-180 degrees C for 2-5 hours to modified graphene oxide powder product is collected, washed with water and vacuum dried. The Pre-nuclear emulsion is prepared by adding an appropriate amount modified graphene oxide sample in a constant temperature reaction vessel. 0.1-10% emulsion, desired functional monomers including 10-50% methyl methacrylate, 20-60% butyl acrylate, 12-40% acrylic acid are mixed for 5 minutes, emulsified, 0.2-5% emulsifier and 0.3-1.6% dispersing agent are added, stirred with 900-7100 revolutions per minute for 10-20 minutes to obtain desired chain initiator. 0.01-0.3% pH stabilizer and 0.01-1.5% pH adjuster are added dropwise to set pH value to 10, temperature of the thermostat is adjusted to 60-100 degrees C, and maintained for 50-80 minutes. The seed emulsion polymerization is completed, pre-shell emulsion is prepared by adding an appropriate amount in constant temperature reaction vessel to a modified graphene oxide sample. 0.1-20 wt.% emulsion, and 0.1-2.5 wt.% emulsifier and 0.1-1.5 wt.% dispersant, and 25-65% desired monomer methyl acrylate, 10-38% acrylamide and 10-40% functional monomer vinyl versatate, then emulsified at a speed of 2000-5000 revolutions per minute for 100-160 minutes, then 0.02-0.5% chain initiator, 0.05-1.8% pH stabilizer and 0.05-2.5% pH regulator, where control solution pH is set to 7-8. The aqueous emulsion Core-shell structure constructed in reaction vessel at 80-100 degrees C, and pre-nuclear emulsion is dropped into the solution at a dropping rate of 0.01-5 mL/minutes for 8 hour to obtain higher solids graphene conductive water-based latex emulsion.