Green preparation and properties of superhydrophobic stainless steel surfaces

In this paper, a green and efficient method for preparing superhydrophobic stainless steel surface is presented. A periodic grating structure was fabricated on the surface of 304 stainless steel using nanosecond laser pulses, and then chemically modified with myristic acid, an environmentally friendly reagent. This approach successfully achieved durable and robust superhydrophobic properties on stainless steel surfaces with a contact angle of 156.5 ° and a roll angle of 2.8 °. The surface remains excellent hydrophobicity after undergoing various abrasion impact tests. The proposed preparation method is helpful in promoting the industrial application of stainless steel.