Superhydrophobic surfaces on brass substrates fabricated via micro-etching and a growth process

Abstract

Constructing artificial superhydrophobic surfaces is an effective strategy for improving the properties of traditional materials. In this paper, we report an easy method for preparing superhydrophobic surfaces on brass to expand its field of application. The micro–nanostructure on the brass surface was constructed via micro-etching technology, and the resulting surface energy was reduced via stearic acid modification. The surface was analyzed using scanning electron microscopy and X-ray photoelectron spectroscopy. The brass surface was converted from hydrophilic to superhydrophilic to superhydrophobic. Bending and abrasion tests were used to characterize the mechanical durability of the surface. Additionally, the obtained surface exhibited a superior self-cleaning performance. We propose that this method has a promising future for superhydrophobic surface fabrication and can expand the applications of brass.