Journal
PROGRESS IN ORGANIC COATINGS
Volume 174, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2022.107280
Keywords
MOF; MIL-53as(Al); Galvanized steel; Silane; Epoxy; Corrosion
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In this study, a metal-organic framework (MOF) was synthesized and loaded with 8-hydroxyquinoline (8HQ) as a corrosion inhibitor. Characterization techniques confirmed the successful loading of 8HQ in the MOF, and the results showed that the 8HQ-doped MOF significantly improved the corrosion protection of the coating systems.
In this article, MIL-53as(Al) metal-organic framework (MOF) was synthesized and loaded with 8-hydroxyquino-line (8HQ) as a corrosion inhibitor. The characterization based on FTIR, Raman, XRD, and XPS confirmed the successful loading of 8HQ in MOF. The corrosion inhibitive activity of the products was studied in the solution phase, single silane coating, and duplex coating system consisting of hybrid silane primer and epoxy topcoat applied on galvanized steel. XPS confirmed chemisorption of released 8HQ from the MIL-53as(Al) on the metal surface. Electrochemical test results revealed a significant improvement in corrosion protection of single layer and duplex coating systems in the presence of 8HQ-doped MOF.
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