Passivation solution for passivating high-corrosion-resistance alloy

The invention belongs to the technical field of metal material surface treatment, and particularly relates to a passivation solution for passivation treatment of a high-corrosion-resistance alloy. Modified glycidyl methacrylate, aminated nano silicon dioxide and phosphoric acid modified nano cellulose are added into the prepared passivation solution for passivation treatment of the high-corrosion-resistance alloy, and the modified glycidyl methacrylate and the phosphoric acid modified nano cellulose cooperate with each other, so that the adhesive force between a film layer and metal is greatly improved. Furthermore, N-beta-(aminoethyl)-gamma-aminopropyl trimethoxy silane is adopted to modify nano silicon dioxide, the dispersity of nano silicon dioxide in the passivation solution can be improved, and due to the fact that an organic branch chain of nano silicon dioxide contains a large number of amino groups, the passivation solution has a good passivation effect. According to the present invention, the nano-cr