| Titre : |
Getting the air out : Polyesters with reduced reactivity for β-hydroxyalkylamide powder coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
R. J. M. Overkamp, Auteur ; A. R. Hofkamp, Auteur ; H. J. Stuiver, Auteur ; M. H. J. Schutte, Auteur |
| Année de publication : |
2002 |
| Article en page(s) : |
p. 23-29 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
In powder coatings based on polyester resins and β-hydroxyalkylamide hardeners, degassing of air and water can often pose a problem. This situation can be significantly Improved using polyesters containing aliphatic acid end groups. A larger fraction of aliphatic end groups reduces the reactivity and improves the degassing behaviour. Because this fraction can be varied Independent of the glass transition temperature of the resin, other properties such as gloss, impact resistance and durability are not significantly affected. |
| Note de contenu : |
- Fast reaction mechanism can prevent proper flow
- How to introduce lower rectivity without reducing film properties?
- Aliphatics acids rect slowler, but lower Tg
- Process conditions affect reactivity - independent of Tg
- Experimental
- Test results |
| En ligne : |
https://drive.google.com/file/d/1RcwJjwNS363JOPVWE9wDom80ZIlSd-5s/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10876 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 1-2/02 (01-02/2002) . - p. 23-29
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