Abstract
The corrosion of aluminum pigments in aqueous alkaline paint media, which results in the evolution of hydrgen, can be inhibited by certain substances. The combination of noninhibiting paint resins with three corrosion inhibitors (salicylic acid, a fluorinated phosphate surfactant, and an epoxy ester resin) has been studied. The presence of the resins does not significantly affect the stabilization of the aluminum pigment at pH 10 by the corrosion inhibitors. With the addition of corrosion inhibitors, the hydrogen volume evolved from aqueous aluminum pigment dispersions is surprisingly reduced by stirring. However, when heated to +40°C aqueous aluminum pigment dispersions with inhibitors evolve more hydrogen; at pH 8 the results are still satisfactory even at +40°C.
This is a preview of subscription content, log in via an institution to check access.
References
Poth, U., “Topcoats for the Automotive Industry,” inAutomotive Paints and Coatings, Fettis, G. (Ed.), pp 119, Weinheim, VCH, 1995.
Müller, B. and Gampper, M., “Korrosion und Korrosionsinhibierung von Aluminiumpigmenten im alkalisch wäßrigen Medium,”Werkst. Korros., 45, 272 (1994).
Müller, B., “Aluminium- und Zinkpigmente in wäßrigen Lackmedien - Teil 1: Korrosionsreaktionen,”Farbe Lack, 103, No. 8, 24 (1997).
Besold, R., Reißer, W., and Roth, E., “Aluminiumpigmente für wäßrige Beschichtungen-Widerspruch oder Wirklichkeit,”Farbe Lack, 97, No. 4, 311 (1991).
Müller, B., “Aluminium- und Zinkpigmente in wäßrigen Lackmedien - Teil 2: Korrosionsinhibierung,”Farbe Lack, 103, No. 11, 111 (1997).
Müller, B., “Stabilization of Aluminum Pigments in Aqueous Alkaline Media by Styrene Copolymers,”Journal of Coatings Technology,67, No. 846, 59 (1995).
Müller, B., Triantafillidis, D., and Oughourlian, C., “Korrosionsinhibierung von Aluminium- und Zinkpigmenten unter praxisnahen Bedingungen,”Coating, 33, No. 2, 66 (2000).
Müller, B., “Korrosionsinhibierung von Aluminiumpigment durch disubstituierte Benzolderivate,”Mater. Corros., 50, No. 4, 213 (1999).
Müller, B. and Schubert, M., “Fluortenside schützen Metallpigmente,”Farbe Lack, 105, No. 12, 48 (1999).
Müller, B. and Schubert, M., “Stabilization of Metal Pigments by Epoxy Ester Resins,”Eur. Coat. J., No. 11, 34 (1999).
Müller, B., Schmelich, T., and Gampper, M., “Wechselwirkung von Bindemitteln mit Aluminiumpigmenten — Eine Untersuchung verschiedener wasserverdünnbarer Lackbindemittel,”Farbe Lack, 101, No. 2, 101 (1995).
Müller, B. and Holland, A., “Stabilization of Aluminium Pigments in Water-Borne Systems by Paint Resins,”Surf. Coat. Int. (JOCCA), 80, No. 7, 321 (1997).
Müller, B., “Stabilization of Zinc Pigments in Aqueous Alkaline Media by Paint Resins,”Journal of Coatings Technology,68, No. 863, 51 (1996).
Putilova, I.N., Balezin, S.A., and Barannik, V.P.,Metallic Corrosion Inhibitors, pp 32, London, Pergamon Press, 1960.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Müller, B., Oughourlian, C. & Triantafillidis, D. Stabilization of aluminum pigment in waterborne paints. Journal of Coatings Technology 73, 81–84 (2001). https://doi.org/10.1007/BF02698401
Issue Date:
DOI: https://doi.org/10.1007/BF02698401