| Titre : |
Accelerated exposure of pigmented anti-corrosion coating systems |
| Type de document : |
texte imprimé |
| Auteurs : |
X. F. Yang, Auteur ; Stuart G. Croll, Auteur |
| Année de publication : |
2004 |
| Article en page(s) : |
p. 7-13 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Butanone La butan-2-one (appelée simplement butanone, éthyl méthyl cétone ou MEK en anglais) est une cétone généralement utilisée en tant que solvant. Il s'agit d'un liquide incolore qui possède une odeur piquante ressemblant à celle de l'acétone.
Essais accélérés (technologie)
Liants
Microscopie à force atomique
Polyuréthanes
Revêtements organiques
Spectroscopie d'impédance électrochimique
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Two coating systems were investigated under QUV-340®/Prohesion (ultraviolet/salt fog) alternating exposure. One coating was a conventional primer high-gloss (HG) polyurethane topcoat, and the other was a single ‘self-priming’ (SP) polyurethane coating. Both coating surfaces oxidised from the exposure, but the coating bulk remained intact. Cracks developed in the ‘self-priming’ coating surface, but it remained adhering. The other topcoat showed good weathering resistance, but its primer lost adhesion after exposure. Both coatings initially developed nanoblisters, then increasing surface roughness. Electrochemical impedance spectroscopy (EIS) showed similar corrosion-protective properties during much of the exposure. Evidently, electrochemical measurements alone are not sufficient to monitor deterioration in corrosion-protective coatings. |
| Note de contenu : |
- Sample preparations
- Accelerated weathering tests
- Coatings tests
- Atomic Force Microscopy (AFM) studies
- Scanning Electron Microscopy (SEM) and energy dispersive x-ray analysis (EDX)
- Electrochemistry impedance spectroscopy (EIS) studies |
| DOI : |
10.1007/BF02699558 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/BF02699558.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5476 |
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 87, B1 (02/2004) . - p. 7-13
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