| Titre : |
Fluorinated resins in self-stratifying coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Chris Carr, Auteur ; Sue Benjamin, Auteur ; Derek J. Walbridge, Auteur |
| Année de publication : |
1995 |
| Article en page(s) : |
p. 262-266 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Copolymère fluoroéthylène-vinyléther
Energie de surface
Epoxydes
Liants
Revêtements autostratifiants:Peinture autostratifiante
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
A recently completed «Brite» project was successful in developing liquid, pigmented self-stratifying coatings. These coatings contain two or more resin components with different functions which spontaneously stratify after application to the substrate. A strong driving force for stratification is the surface energy difference between the two separate phases, but other properties inflence the degree of stratification. Coatings containing an epoxy resin component (high surface energy) with a low surface energy component such as floroethylyene/vinyl ether copolymers (FEVE) proved particularly successful combinations. In nonpigmented self-stratifying systems the degree of separation was great enough to cause delamination between the two resin layers. A single pigment, which is located in the basecoat layer of the final coating, was incorporated with success and decreased the tendency to delaminate. It was found that systems containing two pigments which were intended to stratify wery more unpredictable, with the pigments often ending up distributed throughout the film. |
| Note de contenu : |
- Selection and characterisation of materials
- Characterisation of stratification in films
- Solubility and compatibility
- Surface tensions |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11298 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 4/95 (04/1995) . - p. 262-266
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