Abstract
Cerium-based compounds have been considered as effective inhibitors in corrosion resistance coatings for many years. In this study, corrosion inhibition behavior of alkyd coatings containing either cerium nitrate or cerium oxide was evaluated. In order to use cerium nitrate in the coatings, cerium oxide nanoparticles were first treated with cerium nitrate hexahydrate. Then treated and untreated nanoparticles were loaded into the alkyd coating. Surface treatment of nanoparticles was studied using FTIR spectroscopy. Dispersion of nanoparticles in polymeric matrix was assessed via EDAX analysis. Corrosion performance of the coatings applied on steel substrates was evaluated using EIS technique. The results showed that presence of cerium nitrate on cerium oxide nanoparticles leads to improve corrosion resistance of alkyd coatings.
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