▎ 摘　　要

NOVELTY - Method for synthesizing a graphene oxide modified alcohol ether for a metal cutting fluid involves (i) preparing terminal epoxy alcohol ether by mixing a polyol with an acidic catalyst, introducing ethylene oxide, carrying out temperature control reaction, cooling, introducing epichlorohydrin, adding potassium carbonate or potassium hydroxide solution, separating liquid, taking supernatant, adding phosphoric acid, adding a fine preparation for refining, performing refining filtration and obtaining a refined polyether, (ii) performing alcohol ether amination by adding ethanolamine to the refined polyether, stirring and adding triethylamine, (iii) preparing acyl chloride graphene by taking graphene oxide in dichloromethane, adding acyl chloride, stirring at a high speed and dripping triethylamine and (iv) performing coupling reaction by dripping polyetherethanolamine into a dichloromethane dispersion of adipoyl chloride graphene oxide, stirring and distilling to remove dichloromethane. USE - The method is useful for synthesizing a graphene oxide modified alcohol ether for a metal cutting fluid. ADVANTAGE - The method obtains terminal epoxy alcohol ether in one step and a highly stable graphene oxide modified polyether and provides the product having excellent metal processing performance with the addition of graphene. DETAILED DESCRIPTION - Method for synthesizing a graphene oxide modified alcohol ether for a metal cutting fluid involves (i) preparing terminal epoxy alcohol ether by a one-step method by mixing a polyol with an acidic catalyst, introducing ethylene oxide, carrying out temperature control reaction, cooling, introducing epichlorohydrin, adding potassium carbonate or potassium hydroxide solution, separating liquid, taking supernatant, adding phosphoric acid to adjust the pH to neutral, adding a fine preparation for refining, performing refining filtration to obtain clear liquid and obtaining a refined polyether, (ii) performing alcohol ether amination by adding equal molar ratio of ethanolamine to the refined polyether, stirring for 2 hours and adding triethylamine as a catalyst, (iii) preparing acyl chloride graphene by taking 2 g graphene oxide in 50 ml dichloromethane, adding acyl chloride, stirring at a high speed and slowly dripping triethylamine and (iv) performing coupling reaction by dripping polyetherethanolamine into a dichloromethane dispersion of adipoyl chloride graphene oxide, stirring for 2 hours and distilling under reduced pressure to remove dichloromethane.