▎ 摘　　要

NOVELTY - Preparing a repairable graphene oxide material based on hydrogen bonding involves dissolving 1.20-1.70g of 1,2-bis(2-aminoethoxy)ethane in 5-10mL of N,N-dimethylformamide solution, transferring the dissolved solution to a 50mL single-neck flask, adding 1.50-2.00g of 1,1'-thiocarbonyldiimidazole to the single-necked flask, and uniformly dispersing by ultrasonic vibration to obtain a uniform solution, transferring the 50mL single-necked flask containing the homogeneous solution to a constant temperature oil bath at 25 degrees C, and continue to react with magnetic stirring for 24 hours under condensed reflux. After the reaction is stopped, the reactant is fully dissolved in chloroform and then slowly dropped into ether, settled and left to stand, and the supernatant liquid is removed to obtain a precipitated product. USE - Method for preparing a repairable graphene oxide material based on hydrogen bonding. ADVANTAGE - The method enables to prepare a repairable graphene oxide material based on hydrogen bonding, which solves the problem that the mechanical properties of the hydrogen bond self-healing material and the self-healing effect are usually rejected and hydrogen-bonded thiourea structure endows the material with better self-healing ability and has excellent mechanical properties and gas barrier properties of graphene oxide, the mechanical properties of the material are greatly enhanced. DETAILED DESCRIPTION - Preparing a repairable graphene oxide material based on hydrogen bonding involves dissolving 1.20-1.70g of 1,2-bis(2-aminoethoxy)ethane in 5-10mL of N,N-dimethylformamide solution, transferring the dissolved solution to a 50mL single-neck flask, adding 1.50-2.00g of 1,1'-thiocarbonyldiimidazole to the single-necked flask, and uniformly dispersing by ultrasonic vibration to obtain a uniform solution, transferring the 50mL single-necked flask containing the homogeneous solution to a constant temperature oil bath at 25 degrees C, and continue to react with magnetic stirring for 24 hours under condensed reflux. After the reaction is stopped, the reactant is fully dissolved in chloroform and then slowly dropped into ether, settled and left to stand, and the supernatant liquid is removed to obtain a precipitated product. After centrifuging the precipitated product with a centrifuge at 200 rpm, the insoluble matter is collected and vacuum-dried at 105 degrees C for 12 hours to obtain an ether-thiourea polymer. The basic process of preparing graphene oxide is divided into low temperature reaction stage, medium temperature reaction stage and high temperature reaction stage. 8-12 mL of N, N-dimethylformamide solution, 10-14 mg of graphene oxide, and 1.5-2.5 g of ether-thiourea polymer are weighed into a 50 ml single-port flask, dispersed ultrasonically for 2 hours to obtain a uniform solution, transfer the homogeneous solution to a 120 degrees C constant temperature oil bath, vacuum the system-after filling with nitrogen 3 times, condense and reflux, and continue to react with magnetic stirring for 30 hours. After the reaction is stopped, filter with suction while it is hot, and repeatedly wash the reactants with N,N-dimethylformamide to wash away unreacted ether-thiourea polyme. The filter paper is taken out with tweezers, and then line the bottom with a piece of clean filter paper and place it in a vacuum drying oven at 80 degrees C to dry to constant weight. The ultimate goal is to obtain a repairable graphene oxide material based on hydrogen bonding.