| abstract |
The invention particularly relates to a surface treatment solution for coated steel sheets, a preparation method and a use method, which belong to the technical field of surface treatment. In parts by weight, the raw materials include 0.05-0.5 parts of active side-group polysiloxane, a film layer adhesion 0.2-2 parts of accelerator, 0-1 part of acid-base regulator and 100 parts of water-alcohol mixed solution, the mass ratio of water to alcohol in the water-alcohol mixed solution is 1:(0.5-2). The treatment solution is applied to the surface of the zinc-aluminum-magnesium plated steel sheet to form an organic/inorganic composite film, thereby effectively improving its bonding performance. The preparation method not only has the advantages of simple process, low cost, safety and environmental protection, but also has outstanding effects, and the prepared treatment solution can effectively improve the bonding performance of the surface of the zinc-aluminum-magnesium plated steel plate. |