2-mercaptobenzothiazole modified graphene oxide anti-corrosion coating and method for preparation thereof

A method for preparing 2-mercaptobenzothiazole modified graphene oxide, wherein:

• step 1:
• a certain amount of graphene oxide, cyanuric chloride and sodium bicarbonate are taken into a flask, a certain volume of N, N-dimethylformamide is taken to disperse it, stirred for 0.5-4 hours at room temperature, heated to 50° C. and stirred for 10-24 hours, then cooled and filtered to obtain the precipitation;
• wherein graphene oxide, cyanuric chloride and sodium bicarbonate are graphene oxide:cyanuric chloride:sodium bicarbonate=1-30 g:1-8 mol:1-20 mol according to the feed ratio, and the volume of N, N-dimethylformamide is 100-2000 ml;
• step 2:
• the precipitation in step 1, 2-mercaptobenzothiazole and potassium hydroxide are taken into a flask, a certain volume amount of acetone is taken to disperse them and react for 6-10 hours, cooled and filtered and
• is obtained;
• wherein the precipitation, 2-mercaptobenzothiazole and potassium hydroxide are precipitation:2-mercaptobenzothiazole:potassium hydroxide=1˜30 g:1˜8 mol:1˜8 mol according to the feed ratio, the volume of acetone is 100-2000 ml.