| Titre : |
Rheology is guiding the way... Influence of balanced rheology modifier ratios on the optical appearance of aqueous metallic coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Udo Schonhoff, Auteur ; Carlos Feito, Auteur ; Elke Piron, Auteur ; Jörg Bungarten, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 186-190 |
| Langues : |
Anglais (eng) |
| Catégories : |
Epaississants
Hectorite
Pigments métalliques
Résistance à l'humidité
Rhéologie
Viscosité
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The orientation of the metal flake pigments, e.g., aluminium pigments, is playing a major role to achieve the optimum optical properties in the formulation of metallic coatings.
The commercially used metallic pigments are shaped differently and differ in their properties. Leafing pigments orient themselves in the wet film directly to the surface. Such pigments create a very metal-like surface appearance of the final coating, which is, however, often less wash or scratch resistant. Leafing pigments typically find application in aerosol coatings and inks. Non-leafing pigments spread honnogeneously through the film after application. This causes better effective protection in the case of chemical or scratch attack. This type of metal pigment can generate unique effects, especially with other types of pigments, such as pearlescent pigments. The main applications are automotive, plastic and general industrial coatings. |
| Note de contenu : |
- Fig. 1 : Mechanism of metallic pigment orientation
- Fig. 2 : Flop indices as a result of additive concentration
- Fig. 3: Rheology curves
- Fig. 4 : Viscosity recovery
- Fig. 5 : Structure recovery time vs flop indices
- Fig. 6 : Humidity resistance of BENTONE DE
- Fig. 7 : Comparison of BENTONE DE vs synthetic Hectorite
- Fig. 8 : Humidity resistance of synthetic Hectorite
- Fig. 9 : Overview of results |
| En ligne : |
https://drive.google.com/file/d/1jYP7obBH2o9E5kXOqiTmUTGeQ1spDlGF/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37658 |
in SURFACE COATINGS INTERNATIONAL > Vol. 105.3 (05-06/2022) . - p. 186-190
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