Improvement of the protective properties of the nanocomposite polypyrrole-Zinc oxide coating on mild steel by adding the dispersant sodium hexametaphosphate

Unveiling the anti-corrosion properties of Zn-eggshell particle composite coatings on mild steel in seawater-simulated solution using starch as a modifier

“…The capacity of ESAp to disperse, harden, and refine grain within the coating matrix might account for the extraordinary hardness of the Zn-8% ESAp + %starch coating. 53 It's possible that trace elements like calcium found in the ESA particles worked with Zn to create a layer of reinforcement between the coating and steel. Consequently, the coated steel's plastic deformation was reduced by the hardened layer.…”

Fabrication of electroactive poly(γ‐glutamic acid) coating for improving corrosion resistance and cytocompatibility of magnesium alloy

“…The γ-PGA-TANi coating retains the redox ability of TANi moieties, which is essential for rapid formation of a passivation layer on the Mg alloy surface. Actually, many anticorrosion mechanisms of electroactive coatings on Mg alloy 37,38 and steel [39][40][41] have been proposed, including cathode separation, anode protection and electric field action. 24 Herein, the most probable anticorrosion mechanism of γ-PGA-TANi coating on Mg alloy would be anode protection, where a passivation layer might be rapidly formed at the interface of γ-PGA-TANi coating and Mg alloy substrate with the reduction of TANi, and the reduced TANi would be oxidized and return to the original state.…”