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Indexed by:期刊论文

Date of Publication:2013-10-01

Journal:CORROSION SCIENCE

Included Journals:SCIE、EI、Scopus

Volume:75

Page Number:38-46

ISSN No.:0010-938X

Key Words:Copper; SEM; XRD; EIS; Passive films

Abstract:This work presents a self-healing protective coating for copper. The complex coating is composed of copper(II) 8-hydroxyquinolinate (Cu(8HQ)(2)) 3D network film storing corrosion inhibitor as base layer and epoxy as top layer covering on the base layer. The results of EIS and polarization curves reveal the self-healing effect of Cu(8HQ)(2) 3D network film with corrosion inhibitor embedded. After being scratched with a knife-edge, the complex coating rapidly releases inhibitor embedded in 3D network structure to suppress the corrosion process. The scratch on the coating is covered with inhibitor adsorption film and the anodic activity is restrained. (c) 2013 Elsevier Ltd. All rights reserved.