Journal
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
Volume 10, Issue 4, Pages 493-502Publisher
SPRINGER
DOI: 10.1007/s11998-012-9463-1
Keywords
Nanocomposite; Cerium nitrate; Salt spray; Impedance
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Nanocomposite coatings which were applied on carbon steel panels based on epoxy cerium nitrate-montmorillonite (MMT) were synthesized and formulated. Nanoparticles were incorporated into epoxy resin by mechanical and sonication processes. The state of dispersion, dissolution, and incorporation were characterized by optical microscopy, sedimentation tests, X-ray diffraction, and transmission electron microscopy. To investigate anticorrosive properties of nanocomposite coatings, electrochemical impedance spectroscopy and salt spray tests were employed. The experimental results showed that epoxy cerium nitrate-MMT nanocomposite coatings were superior to the neat epoxy in corrosion protection effects. In addition, it was observed that the corrosion protection of nanocomposite coatings was improved as the clay loading was increased up to 4-2 wt% cerium nitrate.
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