| Titre : |
Inorganic pigments in powder coatings : Influences on the coating viscosity and curing reaction |
| Type de document : |
texte imprimé |
| Auteurs : |
Peter Thometzek, Auteur |
| Année de publication : |
2000 |
| Article en page(s) : |
p. 26-34 |
| Langues : |
Anglais (eng) |
| Catégories : |
Formulation (Génie chimique)
Pigments inorganiques
Revêtements poudre:Peinture poudre
Rhéologie
Viscosité
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
In powder coatings, the conflicting parameters regarding stability, reactivity, viscosity and flow during stoving must be balanced for each individual system. A large amount of work has been devoted to developing customised binder/hardener combinations for various applications, but little has been done to investigate the interactions between the pigment and binder systems. This article aims to show that the type of pigment and inorganic pigment surface modifications may have an influence on the viscosity and rate of reaction in the powder coating, which must not be underestimated, and that this affects the surface quality significantly. |
| Note de contenu : |
- Outstanding heat resistance of inorganic pigments
- PU-system A-Blocking isocyanate crosslinkers with caprolactam
- PU-system B-Internal blocking of isocyanate crosslinkers
- Manufacture and testing of the powder coatings
- Inorganic Pigments in the PU powder coating system A : - Modified iron oxide pigments stable above 220 °C; - Pigment surface modification alters the viscosity; - Different curing times for different yellow iron oxide pigments; - Correlations between pigment and coating properties
- Red iron oxide pigments in PU system B : - Coarser pigments lead to smaller viskosity effects and higher reactivity |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11039 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 9/00 (09/2000) . - p. 26-34
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Inorganic pigments in powder coatings in EUROPEAN COATINGS JOURNAL (ECJ), N° 9/00 (09/2000)
