▎ 摘　　要

NOVELTY - Graphene-modified epoxy resin-based composite material plate comprises 100 wt.% epoxy resin, 10-12 wt.% flexible furan resin, 12-18 wt.% polyethylene glycol diglycidyl ether, 15-25 wt.% diethylenetriamine, 5-11 wt.% carboxy liquid nitrile rubber, 0.3-0.7 wt.% graphene nano liquid reinforced body, 15-35 wt.% modified expanded perlite particle, and 160-200 wt.% glass fiber cloth. USE - Used as graphene-modified epoxy resin-based composite material plate . ADVANTAGE - The composite material plate has good anti-corrosion effect, light weight, high strength, antistatic property, and quick and convenient installation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing graphene-modified epoxy resin-based composite material plate comprising (1) providing absolute ethanol, gamma-aminopropyl triethoxysilane and graphene respectively by mass ratio of 100: 3-5: 0.2-0.3, mixing anhydrous ethanol and gamma-aminopropyl triethoxysilane uniformly, adding graphene and ultrasonically dispersing at 40-50degreesC for 1-3 hours, filtering and drying obtain functionalized graphene, (2) providing octyl glycidyl ether and functionalized graphene respectively by mass ratio 100: 6-8, stirring, dispersing 50-70 minutes under 60-70 degrees Celsius water bath, ultrasonically reacting for 2-3 hours, and controlling the reaction temperature not to exceed 30 degreesC to obtain graphene liquid reinforced body, (3) providing polyethylene glycol-400 and furfuryl alcohol in a molar ratio of 1-1.2:2, adding polyethylene glycol-400 in a container, adjusting its pH value to 3.5-4.5, heating the system to 70-80degreesC, then slowly adding furfuryl alcohol dropwise into the container, stirring while adding dropwise, continuously reacting for 1-3 hours, discharging, removing moisture under reduced pressure to obtain polyethylene glycol modified furfuryl alcohol, and polymerizing polyethylene glycol modified furfuryl alcohol with a prepolymer containing 3-7 furan rings to obtain a flexible furan resin, (4) providing sodium silicate, deionized water and formamide according to the mass ratio of 1:2-4:1-3, mixing the sodium silicate and deionized water evenly and hydrolyzing for 30-60 minutes, using 6 mol/l nitric acid (HNO3) to adjust pH to 1-1.6, then adding formamide, stirring well and then adding 1 mol/l aqueous ammonia to adjust pH to 3.2-4.0 to obtain a liquid sol, providing the expanded perlite and the lyosol in a mass ratio of 100:3-11, mixing, sealing and aging in the air for 24-36 hours, and finally drying in a gradient at 70-80degreesC and 170-180degreesC for 3-5 hours and 6-8 hours respectively, cooling to room temperature, pulverize, and sieving to obtain modified expanded perlite particle, and (5) mixed epoxy resin, flexible furan resin, polyethylene glycol diglycidyl ether, diethylene triamine, carboxy liquid nitrile rubber, graphene liquid reinforced body, modified expanded perlite particles and glass fiber cloth, epoxy resin, flexible furan resin, polyethylene glycol diglycidyl ether, carboxy liquid nitrile rubber, graphene liquid reinforced body and the modified expanded perlite particles evenly, and removing the air bubbles by vacuumizing, adding diethylenetriamine, stirring uniformly, compounding with glass fiber cloth, gradient curing at room temperature at 60-80degrees Celsius and 110-120degrees Celsius for 1-3 hours, 40-60 minutes and 60-90 minutes respectively to obtain a graphene-modified epoxy resin matrix composite plate.