The Behavior of Galvanized Steel Coated with a Double and Triple Layer of Hybrid Films

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The aim of this work is to characterize by electrochemical, physicochemical and morphological analysis the hybrid films applied on galvanized steel by dip-coating process. Preliminaries studies showed that a monolayer of silane is not enough to increase the corrosion resistance protection of the substrate. In this context, the galvanized steel was coated with a double and triple layer of hybrid film obtained from a sol constituted by silane precursors 3 - (trimetoxisililpropil) methacrylate (TMSPMA) and tetraethoxysilane (TEOS) with addition of cerium nitrate at a concentration of 0.01M. The hybrid films were cured for 20 minutes at 60°C in each application of the film. The results showed that a double and triple layer of hybrid film increase the barrier effect contributing to corrosion protection of galvanized steel.

Info:

Periodical:

Materials Science Forum (Volumes 727-728)

Edited by:

Lucio Salgado and Francisco Ambrozio Filho

Pages:

1604-1609

DOI:

10.4028/www.scientific.net/MSF.727-728.1604

Citation:

S. R. Kunst et al., "The Behavior of Galvanized Steel Coated with a Double and Triple Layer of Hybrid Films", Materials Science Forum, Vols. 727-728, pp. 1604-1609, 2012

Online since:

August 2012

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$35.00

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