A novel strategy to modify the surface of plasma electrolysis produced inorganic coatings for fabricating organic@functional binding agents@inorganic materials

Abstract

Abstract Organic@functional binding agents(FBAs)@inorganic materials are fabricated using two efficient methods. For this purpose, inorganic layer containing organically magnesium aluminate loaded with metal hydroxide, namely (Mg(OH)2 or/and Ni(OH)2), and 2-mercaptobenzimidazole (MBI) were produced on Mg-3%Al-1%Zn alloy via plasma electrolysis (PE) method and then two-step dip chemical coating (DCC) method. The presence of metal hydroxides resulted in a decrease in the porosity and microcracks and an increase in strong bonds between organic and inorganic coating. Thus, it was found that the hybrid 2-mercaptobenzimidazole and metal hydroxides materials act good corrosion inhibitors for magnesium corrosion in aqueous solutions.