▎ 摘　　要

NOVELTY - Modifying graphene comprises (i) oxidizing graphene by Hummers method, and then adding graphene oxide and functional monomer into reactor, where amount of the graphene oxide is 5-20 wt.% of functional monomer; and functional monomer is acryl glycidyl ester, photosensitized -NCO functional prepolymer and photosensitized -COOH functional prepolymer, (ii) adding p-hydroxyanisole and triethylbenzylamine chloride into reactor, where total amount of p-hydroxyanisole and triethylbenzylamine chloride is 0.1% of the total weight of graphene oxide monomer and functional monomer, (iii) raising the temperature of the reaction system to 90 degrees C to polymerize graphene oxide and functional monomers by in situ, (iv) determining the values of epoxy group, -NCO group or -COOH group in reaction system, and (v) when the amount of epoxy group, -NCO group or -COOH group is 10%, less than 0.5% or less than 0.5%, then cooling, and filtering to obtain clear and transparent reaction mixture. USE - The graphene is useful in ultraviolet light curable paint (claimed). DETAILED DESCRIPTION - Modifying graphene comprises (i) oxidizing graphene by Hummers method, and then adding graphene oxide and functional monomer into reactor, where amount of the graphene oxide is 5-20 wt.% of functional monomer; and functional monomer is acryl glycidyl ester, photosensitized -NCO functional prepolymer and photosensitized -COOH functional prepolymer, (ii) adding p-hydroxyanisole and triethylbenzylamine chloride into reactor, where total amount of p-hydroxyanisole and triethylbenzylamine chloride is 0.1% of the total weight of graphene oxide monomer and functional monomer, (iii) raising the temperature of the reaction system to 90 degrees C to polymerize graphene oxide and functional monomers by in situ, (iv) determining the values of epoxy group, -NCO group or -COOH group in reaction system, and (v) when the amount of epoxy group, -NCO group or -COOH group is 10%, less than 0.5% or less than 0.5% i.e. end of the reaction, then cooling, and filtering to obtain clear and transparent reaction mixture. INDEPENDENT CLAIMS are also included for: (1) reaction mixture obtained by above method; and (2) ultraviolet light curable paint comprising 16-22 pts. wt. reaction mixture, 8-25 pts. wt. polyurethane acrylate, 0-12 pts. wt. modified epoxy acrylate, 0-8 pts. wt. pure acrylate, 0-18 pts. wt. hyperbranched polyester acrylate, 0-12 pts. wt. fluorosilicon IPN hybrid photosensitive acrylate, 25-45 pts. wt. reactive diluents, 4-6 pts. wt. photoinitiator, 1.5-3.5 pts. wt. auxiliary agent, 0-10 pts. wt. micron-sized white slurry and 0-10 pts. wt. filler.