[article]
| Titre : |
Liquid, sprayable, "zero" VOC coatings utilizing 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. 49-55 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Atmosphère -- Pollution -- Lutte contre
Composés organiques volatils
Dépôt par pulvérisation
Epoxydes
Formulation (Génie chimique)
Liants
Polymères
Polyols
Revêtements en phase aqueuse:Peinture en phase aqueuse
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Zero VOC, hazardous air pollutant 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 alternative 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 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 : |
- INTRODUCTION : Raw materials - 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 - Formulating tips |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18441 |
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 68, N° 860 (09/1996) . - p. 49-55
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Liquid, sprayable, "zero" VOC coatings utilizing cycloaliphatic epoxies in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 860 (09/1996)
