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Effect of Nanoclay on the Corrosion Protection Efficiency of UP/CuEDA2-MMT Nanocomposite Coatings Assessed by EIS Measurements

  • Physicochemical Problems of Materials Protection
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Abstract

Unsaturated polyester/montmorillonite nanocomposite were obtained and characterized. Montmorillonite (MMT) used as inorganic filler was modified with incorporation of metal complexes (CuEDA2Cl2). The effect of chemical modification of this clay on the mechanical properties of unsaturated polyester matrix was analyzed. The results clearly show that the incorporation of copper complexes in the clay (CuEDA2-MMT) caused a desired effect on its final properties improving the performance of the nanocomposites. The improvement could be directly related to the dispersion of the clay inside the matrix, as shown by scanning electron microscopy. The ultraviolet-visible spectra showed that the absorbance of unsaturated polyester films increased with incorporation of complexed clay CuEDA2-MMT, especially at wavelengths of 300–500 nm. The corrosion performance of unsaturated polyester nanocomposite coating stainless steel was realized by electrochemical impedance spectroscopy. The corrosion protection of steel coating UP was increased after incorporation of clay montmorillonite and with CuEDA2-MMT.

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Authors and Affiliations

  1. National Research Center for Materials Science, Laboratory of Physical Chemistry of Minerals and Materials Applications, Borj Cedria, 2084, Tunisia

    Fekri Laatar, Mohamed Ramzi Ben Romdhane & Ezzedine Srasra

  2. Faculté des Sciences de Bizerte, Université de Carthage, Carthage, 1054, Tunisia

    Fekri Laatar

  3. Laboratory for Molecular Electronics (LAMP), Departement of Physics, National Institute of Technology Calicut, Kozhikode, 673601, India

    P. Predeep

Authors
  1. Fekri Laatar
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  2. P. Predeep
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  3. Mohamed Ramzi Ben Romdhane
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  4. Ezzedine Srasra
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Correspondence to Fekri Laatar.

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Laatar, F., Predeep, P., Romdhane, M.R.B. et al. Effect of Nanoclay on the Corrosion Protection Efficiency of UP/CuEDA2-MMT Nanocomposite Coatings Assessed by EIS Measurements. Prot Met Phys Chem Surf 54, 541–547 (2018). https://doi.org/10.1134/S2070205118030310

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  • DOI: https://doi.org/10.1134/S2070205118030310

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