Comparison of hydrophobic structure on steel-surface afterself-assembly process

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.