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High performance anticorrosive paint formulations based on phosphate pigments

M.A. Abd El‐Ghaffar (Department of Polymers and Pigments, National Research Centre, Cairo, Egypt)
E.A.M. Youssef (Department of Polymers and Pigments, National Research Centre, Cairo, Egypt)
N.M. Ahmed (Department of Polymers and Pigments, National Research Centre, Cairo, Egypt)

Pigment & Resin Technology

ISSN: 0369-9420

Article publication date: 1 August 2004

Abstract

Historically, paints designed to protect steel and other metals have been formulated using anticorrosive chromate pigments, which are currently under environmental restrictions. During the investigation reported here, various phosphate compounds. The pigments prepared were characterised using a variety of chemical and spectrophotometric methods of analysis including emission atomic absorption, transmission electron microscope, X‐ray diffraction, in addition to thermal gravimetric analysis. The pigments were also evaluated according to relevant international standard testing methods. The phosphates prepared were incorporated into anticorrosive paint formulations, to replace the imported zinc phosphate pigment, containing medium oil alkyd resin, and melamine formaldehyde resin. Paint films obtained were tested in artificial seawater for 28 days for anticorrosion properties. The results indicated that the paint films had good anticorrosive protection properties that could be attributed to the pigments prepared and the resins used.

Keywords

Citation

Abd El‐Ghaffar, M.A., Youssef, E.A.M. and Ahmed, N.M. (2004), "High performance anticorrosive paint formulations based on phosphate pigments", Pigment & Resin Technology, Vol. 33 No. 4, pp. 226-237. https://doi.org/10.1108/03699420410546917

Publisher

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Emerald Group Publishing Limited

Copyright © 2004, Emerald Group Publishing Limited