▎ 摘　　要

NOVELTY - Aqueous pipeline drag reduction epoxy coating comprises first component and second component, the first component includes 1 pts. wt. aqueous epoxy emulsion, 0.3-0.5 pts. wt. deionized water, 0.005-0.01 pts. wt. modified graphene, 0.05-0.1 pts. wt. modified nano-silicon dioxide, 0.95-1.25 pts. wt. pigment filler, 0.01-0.02 pts. wt. defoaming agent, 0.01-0.03 pts. wt. dispersant, 0.01-0.03 pts. wt. leveling agent, 0.01-0.02 pts. wt. anti-flash rust agent, 0.01-0.02 pts. wt. adhesion promoter, 0.01- 0.02 pts. wt. disinfectant, and 0.01-0.02 pts. wt. thickener, where the preparation of modified graphene includes e.g. mixing flake graphite and concentrated sulfuric acid and stirring, adding potassium permanganate, mixing solution with deionized water, mixing solution with hydrogen peroxide, filtering, washing, drying, mixing with N, N-dimethylformamide, ultrasonically treating, performing four reactions, adding anhydrous solvent, allowing to stand, precipitating, washing and drying. USE - The aqueous pipeline drag reduction epoxy coating is useful for protecting and resisting corrosion of fuel pipelines i.e. natural gas, coal gas, and natural gas-condensate gas-liquid mixed fuel pipelines (all claimed). ADVANTAGE - The coating: can greatly reduces resistance of gas transmission. DETAILED DESCRIPTION - Aqueous pipeline drag reduction epoxy coating comprises first component and second component, the first component includes 1 pts. wt. aqueous epoxy emulsion, 0.3-0.5 pts. wt. deionized water, 0.005-0.01 pts. wt. modified graphene, 0.05-0.1 pts. wt. modified nano-silicon dioxide, 0.95-1.25 pts. wt. pigment filler, 0.01-0.02 pts. wt. defoaming agent, 0.01-0.03 pts. wt. dispersant, 0.01-0.03 pts. wt. leveling agent, 0.01-0.02 pts. wt. anti-flash rust agent, 0.01-0.02 pts. wt. adhesion promoter, 0.01- 0.02 pts. wt. disinfectant, and 0.01-0.02 pts. wt. thickener, where the preparation of modified graphene includes mixing flake graphite and concentrated sulfuric acid and stirring, adding potassium permanganate to perform a primary reaction during the stirring process, mixing solution obtained from the primary reaction with deionized water to perform secondary reaction, mixing solution obtained from secondary reaction with 30% hydrogen peroxide to perform three reactions, filtering solution obtained from three reactions to obtain filter cake, washing filter cake, and drying to obtain graphene, mixing graphene with N,N-dimethylformamide and performing an ultrasonic treatment once to obtain suspension, mixing the suspension, ethylenediamine and N,N'-dicyclohexyl carbodiimide, subjecting it to two ultrasonic treatments, and performing four reactions, adding anhydrous solvent into solution obtained from the four reactions, allowing to stand, precipitating, washing and drying to obtain modified graphene. INDEPENDENT CLAIMS are also included for: (1) preparing aqueous pipeline drag reduction epoxy coating, comprising (i) preparing each raw material by weight of the first component, mixing deionized water, defoaming agent, dispersant, leveling agent, anti-flash rust agent, adhesion promoter and disinfectant, and stirring once, adding modified graphene, modified nano-silicon dioxide, and pigment filler in one-time stirring process, continuing one-time stirring to obtain mixed slurry, mixing mixed slurry with aqueous epoxy resin emulsion, performing secondary stirring, adding thickener during the secondary stirring process, and stirring uniformly to obtain first component, and (ii) preparing second component by weighing each raw material, mixing aqueous epoxy amine curing agent and film-forming aid to obtain second component, mixing first component and second component uniformly based on mass ratio of first component to second component to obtain final product, where the first stirring includes stirring speed of not greater than 1500 revolutions/minute stirring temperature is not less than 60 degrees C, the second stirring includes stirring speed of not less than 1000 revolutions/minute and stirring temperature is not less than 60 degrees C; and (2) anticorrosive coating, prepared by coating and curing drag reducing epoxy coating in aqueous pipeline.