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Anticorrosive Formulation Based of the Epoxy Resin–Polyaminoamide Containing Zinc Phosphate Inhibitive Pigment Applied on Sulfo-Tartaric Anodized AA 7075-T6 in NaCl Medium

  • O. DagdagEmail author
  • L. El Gana
  • O. Hamed
  • S. JodehEmail author
  • A. El Harfi
Article
  • 11 Downloads

Abstract

The addition of zinc phosphate pigment to standard epoxy coatings has been investigated as an anticorrosive and eco-friendly additive. In this study, we prepared two epoxy coatings without and with zinc phosphate for corrosion protection of AA7075-T6 substrates for different time exposures in NaCl solution. The two epoxy coatings were evaluated by electrochemical impedance spectroscopy and their surfaces were characterized by scanning electron microscopy. The results show that the addition of zinc phosphate to the anticorrosive formulation (epoxy resin–polyaminoamide) facilitated the formation of a barrier film, enhanced the barrier anticorrosive properties of the coatings and therefore inhibited the penetration of aggressive corrosive ions to the AA7075-T6 surface.

Keywords

Standard epoxy coating Zinc phosphate AA 7075-T6 NaCl solution 

Notes

Acknowledgements

We would like to thank the laboratory of metallurgical analysis, Cetim Maroc Développement (Centre Technique des Industries de la Mécanique) and quality control laboratory, Casablanca Aeronautics Group Figeac Aero. Aeronautical Technopole of Nouaceur, Mohammed V-Casablanca Airport, Morocco.

Compliance with Ethical Standards

Conflict of interest

There are no conflicts to declare.

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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Laboratory of Agroresources, Polymers and Process Engineering (LAPPE), Department of Chemistry, Faculty of ScienceIbn Tofail UniversityKenitraMorocco
  2. 2.Laboratory of Optoelectronics, Physical Chemistry of Materials and Environment, Department of Physics, Faculty of ScienceIbn Tofail UniversityKenitraMorocco
  3. 3.Department of ChemistryAn-Najah National UniversityNablusPalestine

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