| Titre : |
Liquid zero VOC coatings from cycloaliphatic epoxies |
| Type de document : |
texte imprimé |
| Auteurs : |
Robert F. Eaton, Auteur ; K. T. Lamb, Auteur |
| Année de publication : |
1996 |
| Article en page(s) : |
p. 612-617 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Tags : |
Peinture Liant 'Résine époxyde' 'Polymère cyclique' aliphatique' |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Zero VOC, HAPS free coatings formulations can be readily prepared from liquid cycloaliphatic epoxies and narrow polydispersity caprolactone polyols. These formulations can be applied by conventional spray equipment and are a viable liquid alternate to powder coatings. Using conventional liquid spray equipment, the capital investment for the installation of a new powder coating line can be avoided. With modification, these coatings can be diluted with water and thickened with conventional cellulosic thickeners used in waterborne coatings. In this study we will discuss the influence of key formulating variables like epoxy/hydroxyl mole ratio, catalyst concentration, polyol molecular weight and polydispersity on coating properties. Viscosity reduction and sag resistance are also discussed. |
| Note de contenu : |
- Raw materials
- Coating formulation strategies
- Starting point clear formulation
- Effect of catalyst level and R value (epoxy/hydroxyl/mole ratio) on cure, hardness and impact
- Coil coating conditions
- Epoxy/polyol functionality
- Corrosion resistance
- Water dilution
- Rheology control of water diluted systems
- Lower cure temperatures
- Comparison to powder coatings
- Formulating tips |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11309 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 9/96 (09/1996) . - p. 612-617
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Liquid zero VOC coatings from cycloaliphatic epoxies in EUROPEAN COATINGS JOURNAL (ECJ), N° 9/96 (09/1996)
