| Titre : |
Waterborne primers achieve early performance |
| Type de document : |
texte imprimé |
| Auteurs : |
Johan G. Nienhuis, Auteur ; Mick G. Pemberton, Auteur ; Caroline Sluiter, Auteur ; Ronald van de Nesse, Auteur |
| Année de publication : |
2002 |
| Article en page(s) : |
p. 38-44 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
In comparison with the solvent borne paint systems for joinery industries, the water borne systems have a better durability. However, these systems have a tendency to perform badly in an early stage after application. This can be due to a slow process of film formation, which is depending on the relative humidity and temperature. This article will describe a method to improve the early performance, such as adhesion under wet circumstances, by addition of an isocyanate. This isocyanate crosslinker is able to help the water borne primer to form a better film and, possibly, connects the binder to the wood. Further fine adjustments to the binder and also to the method of application will result in a system applicable for the joinery industries. |
| Note de contenu : |
- Wood : how to win competition from PVC and aluminium window frames
- Isocyanate is able to fix the binder to the wood
- Increase in performance leads to a longer guarantee
- Selected isocyanate : stability and easy to mix in water
- Adjusments of binder system
- Optimal application is given by flow-cover with bypass
- HPLC for determination of the isocyanate concentration in waterborne coatings
- Remarks on results
- Wet adhesion improved by addition of isocyanate
- Wet demonstration after blister-box exposure
- Adhesions tests demonstrated performance decreases in time
- Differences in wet adhesion and adhesion directly and after recovery of the blister-box expsure
- Isocyanate-enriched paints gain early performance |
| En ligne : |
https://drive.google.com/file/d/1yoVBLtYtbVc6-SeuAzFY3qFnGr02OLjH/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10878 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 1-2/02 (01-02/2002) . - p. 38-44
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