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Corrosion performance of lamellae nanostructured fluorinated organic coating applied on steel

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Abstract

This work investigates a new organic coating for corrosion protection. This coating is a Poly(n-butyl acrylate-b-trifluoroethyl methacrylate) diblock copolymer elaborated by Controlled Radical Polymerization and then deposited on steel. Several parameters were taken into account to evaluate their influence on corrosion protection properties: the PBA molar mass, the solvent type (THF or Dichloromethane), the thickness of coatings and the nature of the nanostructuration (lamellae or sphere). The thickness of the films was measured between 45 and 265 μm by optical microscopy and by gravimetric difference measurements. Atomic Force Microscopy (AFM) observations show a homogeneous surface of the coating with a nanostructured lamellar structure. The electrochemical behaviour was studied by Electrochemical Impedance Spectroscopy (EIS) in a sodium sulphate solution. The better corrosion resistance was obtained for coating thickness higher than 265 μm. On the other hand, poor results were obtained using a PBA high molar mass and dichloromethane as solvent.

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Authors and Affiliations

  1. Laboratoire MADIREL, UMR 6121 CNRS-Université de Provence, Centre Saint-Jérôme, 13397, Marseille Cedex 20, France

    V. Roche, F. Vacandio & Y. Massiani

  2. Laboratoire CBRL, UMR 6517 CNRS-Universités d'Aix-Marseille I et III, Centre de Saint-Jérôme, 13397, Marseille Cedex 20, France

    V. Roche & D. Bertin

Authors
  1. V. Roche
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  2. F. Vacandio
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  3. D. Bertin
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  4. Y. Massiani
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Correspondence to F. Vacandio.

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Roche, V., Vacandio, F., Bertin, D. et al. Corrosion performance of lamellae nanostructured fluorinated organic coating applied on steel. J Electroceram 16, 41–47 (2006). https://doi.org/10.1007/s10832-006-2366-8

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  • DOI: https://doi.org/10.1007/s10832-006-2366-8

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