Comparison between the effect of nanoglass flake and montmorillonite organoclay on corrosion performance of epoxy coating

Montmorillonite organoclay (OMMT) and nanoglass flake (GF) were incorporated into epoxy resin by mechanical agitation and sonication process. Optical microscopy was used to analyse the optical homogeneity of dispersions. To investigate anticorrosive properties of nanocomposite organic coatings, salt...

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Bibliographic Details
Published in:Corrosion science 2010-05, Vol.52 (5), p.1809-1817
Main Authors: Nematollahi, M., Heidarian, M., Peikari, M., Kassiriha, S.M., Arianpouya, N., Esmaeilpour, M.
Format: Article
Language:English
Subjects:
A. Organic coating
Applied sciences
B. EIS
B. Polarization
Corrosion
Corrosion environments
Corrosion resistance
Electrochemical impedance spectroscopy
Exact sciences and technology
Flakes
Metals. Metallurgy
Nanocomposites
Nanomaterials
Nanostructure
Nonmetallic coatings
Polarization
Production techniques
Surface treatment
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Summary:Montmorillonite organoclay (OMMT) and nanoglass flake (GF) were incorporated into epoxy resin by mechanical agitation and sonication process. Optical microscopy was used to analyse the optical homogeneity of dispersions. To investigate anticorrosive properties of nanocomposite organic coatings, salt fog test, electrochemical impedance spectroscopy (EIS), polarization measurement, pull-off adhesion and water absorption tests have been employed. The time course of impedance parameters and polarization studies show that coating corrosion resistance is improved as the amounts of OMMT and GF are increased to 3 wt%. The results indicated that nano-GF filled specimens display better corrosion performance than the OMMT filled ones.
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2010.01.024