Aluminum alloy anode oxide film environment-friendly sealing material and preparation method thereof

The invention discloses a preparation method of an environment-friendly sealing material for an aluminum alloy anode oxide film, which comprises the following steps: mixing a graphene oxide colloidal solution with an ionic liquid, adding an acid solution of stannic oxide, placing under an ultraviolet light source for irradiation reaction, sealing and standing after the reaction is finished, and then exposing in the air, thereby obtaining the environment-friendly sealing material for the aluminum alloy anode oxide film. Refluxing by using an extracting agent to obtain modified graphene oxide gel; a natural plant fiber material is washed, dried and ground into powder to obtain cellulose powder, then the cellulose powder is dissolved in an organic alcohol solution, the cellulose powder and a metal active substance are mixed and react, and after the reaction is finished, a product is sequentially filtered, washed and ground to obtain metal active substance enhanced cellulose powder; and heating the obtained modif