▎ 摘　　要

NOVELTY - A modified resin comprises graphene oxide, vinyl resin and curing agent. The mass ratio of the graphene oxide to the vinyl resin is 5-8:92-95. The addition amount of curing agent is 10-13% with respect to the mass of the vinyl resin. USE - Modified resin for fiber-reinforced polymer rib. ADVANTAGE - The modified resin material has excellent water resistance and mechanical property, can be prepared by a simple method on a large scale. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the modified resin, which involves (s1) dispersing graphene oxide in organic solvent to form suspension, and ultrasonically dispersing to obtain graphene oxide dispersion, (s2) adding vinyl resin, mechanically stirring and ultrasonically dispersing to obtain solution, (s3) placing the solution in vacuum oven and drying to obtain graphene-modified vinyl resin, (s4) mixing with curing agent, and mechanically stirring uniformly to obtain mixture, and (s5) vacuum exhausting, leaving, curing and molding the mixture.