▎ 摘　　要

NOVELTY - The method comprises dissolving 100 parts by weight (pbw) of ethylene-vinyl acetate copolymer in tetrahydrofuran solution according to a mass ratio of 1:9 at normal temperature, dispersing 0.5-1 pbw of graphene oxide in the tetrahydrofuran solution according to a mass ratio of 1:900, adding ethylene-vinyl acetate copolymer solution into the tetrahydrofuran solution, mixing the solution at a pressure of 15 MPa to obtain ethylene vinyl acetate copolymer and graphene oxide composite material, and adding 1.5 pbw of vulcanizing agent such as dicumyl peroxide to the composite material. USE - The method is useful for reinforcing ethylene vinyl acetate copolymer, which is useful in an electric wire and cable industry. ADVANTAGE - The method is capable of simply reinforcing ethylene vinyl acetate copolymer thus improving the mechanical property of the electric cable. DETAILED DESCRIPTION - The method comprises dissolving 100 parts by weight (pbw) of ethylene-vinyl acetate copolymer in tetrahydrofuran solution according to a mass ratio of 1:9 at normal temperature, dispersing 0.5-1 pbw of graphene oxide in the tetrahydrofuran solution according to a mass ratio of 1:900, adding ethylene-vinyl acetate copolymer solution into the tetrahydrofuran solution, mixing the solution at a pressure of 15 MPa to obtain ethylene vinyl acetate copolymer and graphene oxide composite material, and adding 1.5 pbw of vulcanizing agent such as dicumyl peroxide to the composite material at a temperature of 170 degrees C. The ethylene-vinyl acetate copolymer has vinyl acetate content of 20-80 wt.% and Mooney viscosity of 20-30.