[article]
| Titre : |
Cost effective, high performance solutions for high temperature cured coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Fabiana Requeijo, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 92-98 |
| Langues : |
Anglais (eng) |
| Catégories : |
Encapsulation
Matériaux -- Cuisson
Oxyde de fer
Pigments métalliques -- Effets des hautes températures
Stabilité thermique
|
| Index. décimale : |
667.2 Colorants et pigments |
| Résumé : |
Standard Yellow Iron Oxides are the ideal inorganic pigments to develop a wide range of color shades due to the advantages in performance and cost provided by their high hiding power and opacity, excellent weather, light and chemical fastness and reduced price. But their use in high temperature cured Coatings such as coil, powder or stoving paints is limited. Why ?
When Yellow Iron Oxides are submitted to high temperatures, their goethite structure (FeOOH) dehydrates and partially turns into hematite (Fe203), which is the crystal structure of Red Iron Oxides. This is why the standard Yellow Iron Oxide existing before curing becomes darker and browner (Picture 1).
This change can already take place from temperatures close to 160°C depending on the curing time, the binder system and the Coating formulation itself. |
| Note de contenu : |
- NUBIOLA'S HEAT RESISTANT INORGANIC PIGMENTS : Zinc ferrites, nubifer K series - Heat resistant yello iron oxide, nubifer Y-7050
- REPLACING PIGMENT BROWN 24
- REPLACING RED ORGANIC PIGMENTS
- FORMULATING HIGH PERFORMANCE COATINGS WITH NUBIFER Y-7050 |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18856 |
in PAINTINDIA > Vol. LXIII, N° 4 (04/2013) . - p. 92-98
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