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In this experiment, a low-cost raw material of stainless steel and low-carbon steel was used and a coating with some hydrophobic and high adhesion was obtained by electrochemical etching method and coating method. In the course of the study, the current gradients of 0.1-0.3A were set for both substrates. The influence of electroplating current on the coating performance was studied. The concentration gradient of 5% -10% stearic acid in absolute ethanol was set and the temperature gradient of 150 °C-200 °C was set. The influence of stearic acid content and tempering temperature on the static contact angle was also studied, the difference was that the stainless steel substrate was electrochemical etching pretreatment. Experiments show that the prepared stainless steel substrate coating hydrophobic angle up to 115-120 °, the use of scanning electron microscopy in the micro-nano structure were observed finally. [ABSTRACT FROM AUTHOR]

In this experiment, the stainless-steel substrate was electrolyzed, electroplated, reduced low surface energy and tempered at a low temperature and finally obtained a coating with certain hydrophobicity and high adhesion. During the research, the voltage gradient of 3V, 5V, 7V, 10V and 15V was set. The influence of voltage on the morphology of stainless steel substrate and the current utilization rate were studied by using the change of corrosion quality and time of stainless steel substrate. The effects of electroplating current on the properties of coatings were studied. We studied the effects of stearic acid content (5%, 7% and 10% in volume fraction) and tempering temperature (150°, 180° and 200°) on static contact angle. Hydrophobic surfaces with angles of 115-120 ° were prepered on the stainless steel and the explanation of high hydrophobicity was given by observation and characterization of the micro-nano structure. [ABSTRACT FROM AUTHOR]