▎ 摘　　要

NOVELTY - Graphene hot melting anti-corrosion paint is claimed. The method comprises preparing an ethylene-vinyl alcohol copolymer precursor, mixing with the coupling agent-modified graphene oxide, and performing reactive extrusion granulation, and finally grinding the granules into a dry powder and adding to the resin. The method specifically comprises adding vinyl acetate monomer and solvent after mixing, adding initiator, uniformly mixing, adding into the reaction kettle, introducing inert gas, the raw material in a certain stirring speed, removing oxygen introducing ethylene monomer and heating and polymerizing to obtain ethylene-vinyl alcohol copolymer precursor, the solvent formed by methanol, ethanol, tertiary butanol according to any proportion, the vinyl acetate monomer, the mass ratio of solvent is 1:1.5-3. The initiator is azodiisobutyronitrile or benzoyl peroxide neodecanoate ester, and the vinyl acetate monomer and solvent adding amount is 0.2-1% of the total weight. USE - Used as graphene hot melting anti-corrosion paint. DETAILED DESCRIPTION - Graphene hot melting anti-corrosion paint is claimed. The method comprises preparing an ethylene-vinyl alcohol copolymer precursor, mixing with the coupling agent-modified graphene oxide, and then performing reactive extrusion granulation, and finally grinding the granules into a dry powder and adding to the resin. The method specifically comprises (i) adding vinyl acetate monomer and solvent after mixing, adding initiator, uniformly mixing, adding into the reaction kettle, introducing inert gas, the raw material in a certain stirring speed, removing oxygen introducing ethylene monomer and heating and polymerizing to obtain ethylene-vinyl alcohol copolymer precursor, the solvent formed by methanol, ethanol, tertiary butanol according to any proportion, the vinyl acetate monomer, the mass ratio of solvent is 1:1.5-3. The initiator is azodiisobutyronitrile or benzoyl peroxide neodecanoate ester, and the vinyl acetate monomer and solvent adding amount is 0.2-1% of the total weight, (ii) mixing graphene oxide and silane coupling agent according to the mass ratio of 10:1-3, mixing them evenly and ultrasonically dispersing the processed, water bath heating and stirring to react for a certain time, washing and drying to obtain the graphene oxide modified by coupling agent, (iii)adding silane coupling agent modified oxidized graphene and ethylene-vinyl alcohol copolymer precursor according to the adding weight ratio is 1:5-8, the high pressure, the condition of uniform stirring and heating the combination reaction of the silane and ethylene-vinyl alcohol copolymer precursor, extruding, cutting and granulating to obtain oxidized graphene with the ethylene-vinyl alcohol copolymer of the composite particle, (iv) adding the granules thinned into dry powder in ultra-micro crusher, sieving particles of suitable particle size, the particles mixed with a resin to obtain graphene melt anti-corrosion coating, deoxidizing and stirring speed is 100-120 revolutions/minute for 10-15 minutes, adding the ethylene monomer into the polymerization temperature of the heating after the ethylene monomer at 30-50 bar, the pressure of reaction kettle is 65-75 degrees C, the heating polymerization time is 4-6 hours.