Rui Gou, Yong Li, Qilong Chen, Sha Wang, Dan Sun, Changhua Li, Hongjie Li, Yi He
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Electrophoretic deposition of intelligent anticorrosive epoxy coatings doped with pH-stimulated response ZIF-67 nanocontainer
Metal corrosion has caused great damage to resource economy, and corrosion protection is particularly important. In this paper, GMZT(GO-MBI-ZIF-67-TEOS) nanomaterial was synthesized to prepare the coating. GMZT nanomaterials were mixed with epoxy resin (EP) electrophoretic coating, and the coating was prepared by electrophoretic deposition (EPD) method. Electrochemical impedance spectroscopy (EIS) test results show that the impedance modulus of GMZT/EP is 3 orders of magnitude higher than that of EP after 35 days, which enhances the anticorrosion property of the base film, and the GMZT/EP coating has excellent self-healing property. This is due to the release of the ZIF-67 dissociation ligand and the addition of inhibitors, which form a dense protective film on the metal surface. As a result, the barrier/active anticorrosion properties of epoxy coatings are improved, resulting in superior and long-lasting anticorrosion.
期刊介绍：
The Journal of Materials Science publishes reviews, full-length papers, and short Communications recording original research results on, or techniques for studying the relationship between structure, properties, and uses of materials. The subjects are seen from international and interdisciplinary perspectives covering areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, nanostructured materials, nanocomposites, and biological and biomedical materials. The Journal of Materials Science is now firmly established as the leading source of primary communication for scientists investigating the structure and properties of all engineering materials.
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