Understanding the anticorrosion and ice adhesion of superhydrophobic Zn-CaO nanoparticles derived from oyster composite coating

Zn-CaO nanoparticles were electropositively coated on mild steel substrates in order to attain superhydrophobic properties. The electrodeposited zinc films exhibit porous, round structures according to SEM morphological properties. The phases were identified using X-ray diffraction (XRD). The Zn-CaO nanoparticle-coated mild steel exhibits superhydrophobic properties with a 155° contact angle and is more corrosion-resistant than mild steel. The ice adhesion strength of the Zn-CaO nanoparticle-coated mild steel was 5.5 times higher than that of mild steel. It has been established that waste oyster shells can be used in the production of superhydrophobic zinc coatings for reducing ice adhesion and corrosion resistance in maritime conditions.