| Titre : |
Waterborne acrylic barrier coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Stephen G. Yeates, Auteur ; H. Passier, Auteur ; R. Satguru, Auteur ; J. Farrar, Auteur |
| Année de publication : |
1996 |
| Article en page(s) : |
p. 294-298 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Environmental considerations are clearly influencing current decision making concerning barrier technology and will continue to do so in the future. Concerns around recyclability, energy conservation and air-pollution are leading to a reassessment of available barrier technologies. Against this background Zeneca Resins have been actively researching the area of moisture/water barrier coatings, which has led to the launch of a range of water based acrylic barrier coating resins (NeoCryl). This paper describes some of the fundamental work undertaken in understanding the mechanism of liquid-water and moisture vapour diffusion through an acrylic based coating. Some of the design parameters involved in developing hydrophobic acrylic copolymers are discussed, as well as the role crystalline-wax modification has to play. Wax modification is described in terms of a simple stratification model and results from Atomic Force Microscopy (AFM) and Dynamic Contact Angle Analysis (DCAA) are presented. |
| Note de contenu : |
- Overview
- Aspects of the permeation of water in a polymer matrix
- Sorption
- Diffusion
- Approaches to water/moisture barrier
- Waterborne barrier coatings
- Moisture barrier
- Surface topography
- Surface composition |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11290 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 5/96 (05/1996) . - p. 294-298
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