▎ 摘　　要

NOVELTY - Preparation of modified epoxy composite material involves mixing curing agent, plasticizer, graphene nanosheet composite powder and diluent to obtain a modified curing system, where the mass ratio of curing agent, plasticizer, graphene nanosheet composite powder and diluent is 1:(0.2-1):(0.02-0.1):1, mixing epoxy resin with the modified curing system to obtain a modified epoxy composite system, where the mass ratio of epoxy resin and modified curing system is 10:(1-3), and curing the modified epoxy composite system. USE - Preparation of modified epoxy composite material used marine environment. ADVANTAGE - The modified epoxy resin composite material has excellent mechanical properties and salt-alkali corrosion resistance, and can solve the problem that building materials are easily corroded in marine environments. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a modified epoxy composite material for marine environment, which includes epoxy resin, curing agent, plasticizer, graphene nanosheet composite powder and diluent, where the mass ratio of epoxy resin, curing agent, plasticizer, graphene nanosheet composite powder and diluent is 100:4.5:(0.9-4.5):(0.09-0.45):4.5.