Anti-corrosion anti-dirt heat transfer surface and preparation method thereof

The invention relates to an anti-corrosion anti-dirt heat transfer surface and a preparation method thereof, and belongs to surface treatment and preparation methods. The heat transfer surface is prepared by adding cupric sulfate main salt, PTFE emulsion, carbon-fluorine cationic surface active agent, and sodium citrate complexing agent and ammonium acetate buffering agent into nickel sulfate main salt and sodium hypophosphite (reducing agent). The preparation method is as follows: dissolving nickel sulfate main salt and cupric sulfate main salt by deionized water, stirring, respectively adding sodium citrate complexing agent and ammonium acetate buffering agent dissolved by deionized water, mixing the two obtained solutions uniformly, adding sodium hypophosphite (reducing agent) dissolved by deionized water, adding PTFE emulsion dispersed uniformly by carbon-fluorine cationic surface active agent, mixing completely and uniformly, regulating the pH value of the mixed solution to 8.8-9.2 by sodium hydroxide, a