Titre : |
Service life prediction of colour retention for PVDF architectural coatings with organic pigments |
Type de document : |
texte imprimé |
Auteurs : |
Kurt A. Wood, Auteur ; S. R. Gaboury, Auteur |
Année de publication : |
2006 |
Article en page(s) : |
p. 231-235 |
Note générale : |
Bibliogr. |
Langues : |
Anglais (eng) |
Catégories : |
Décoloration Durée de vie (Ingénierie) Pigments organiques Polyfluorure de vinylidène Prévision, Théorie de la Résistance aux conditions climatiques Revêtements décoratifs:Peinture décorative Revêtements en bâtiment
|
Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
The decorative service life of architectural exterior coatings is often determined by the onset of large colour shifts or visible chalking of the coating. Here, the authors report three-year Florida and accelerated weathering results for a series of 70% poly(vinylidene fluoride) (PVDF) coatings made with a palette of relatively weatherable organic pigments. Many of these coatings show minimal visible colour change after three years in Florida, and 6000 hours accelerated weathering. Surprisingly, the more aggressive UV-B bulb exposure, unlike UV-A bulb exposure, shows a high degree of statistical correlation with the three-year colour shift in Florida. For most of these systems, UV absorber/HALS (hindered amine light stabiliser) packages do not improve the performance, but a 70% PVDF clear coat does. |
Note de contenu : |
- The service life prediction challenge
- Organic pigment series and test conditions
- Results for masstone coatings
- Spearman rank correlation analysis
- Results for tint coating
- Table 1 : Pigment grades used in this study
- Table 2 : System configurations tested in this study for each pigment |
DOI : |
10.1007/BF02699665 |
En ligne : |
https://link.springer.com/content/pdf/10.1007/BF02699665.pdf |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5282 |
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 89, B3 (09/2006) . - p. 231-235