| Titre : |
Investigation of fluoroacid based pretreatments on aluminium |
| Type de document : |
texte imprimé |
| Auteurs : |
P. D. Deck, Auteur ; M. Moon, Auteur ; R. J. Sujdak, Auteur |
| Année de publication : |
1998 |
| Article en page(s) : |
p. 478-484 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Tags : |
Peinturage 'Préparation surface' Métal Aluminium 'Traitement chimique' 'Fluorotitanique acide' 'Fluorozirconique H2ZrF6 'Evaluation performance' 'Méthode électrochimique' 'Analyse |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Metals are painted to enhance appareance and to provide protection from corrosion . In order to ensure optimum performance of painted metal, the metal surface is usually modified by applying a pre-treatment. The resulting conversion coating improves paint adhesion and reduces the tendency for corrosion to occur beneath the paint .
Chromium based pre-treatments have been used quite extensively with good sucess. They promote paint adhesion inhibit corrosion and are cost-effective . Howewer environmental concerns and the health risks associated with the handling of chromium, particulary in its hexavalent oxidation state, have led to efforts to develop more benign alternatives . A major advance in reducing exposure of the workforce and discharge into the environment was the introduction of dried-in-place or no-rinse chrome treatments. Theoretically, all of the chromium is consumed in forming the pre-treatment coating none leaves the plant in the waste stream. |
| Note de contenu : |
- EXPERIMENTAL : Pre-treatment and substrate preparation - Paint performance testing - Electrochimical testing - Compositional information
- RESULTS AND DISCUSSION : Paint performance - Electrochemistry
- SURFACES ANALYSIS : FTIR spectroscopy - Scanning electron microscopy/energy dispersive X-ray analysis - Analysis of XPS data |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16714 |
in SURFACE COATINGS INTERNATIONAL > Vol. 81, N° 10 (10/1998) . - p. 478-484
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