[article]
| Titre : |
Formation and crosslinking of latex films through the reaction of acetoacetoxy groups with diamines under ambient conditions |
| Type de document : |
texte imprimé |
| Auteurs : |
Jiarong Feng, Auteur ; Hung Pham, Auteur ; Peter Macdoanald, Auteur ; Mitchell A. Winnik, Auteur ; John M. Geurts, Auteur ; Hennie Zirkzee, Auteur ; Steven Van es, Auteur ; Anton L. German, Auteur |
| Année de publication : |
1998 |
| Article en page(s) : |
p. 57-68 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
We investigated the processes of film formation, polymer diffusion, and crosslinking of latex films at ambient temperature, using low Tg methacrylate latex bearing acetoacetoxy groups, and curing the systems with 1,6-hexanediamine as the crosslinker. The addition of diamine induces floc formation, which modifies the rheological properties of the dispersion and increases its drying rate when coated onto a substrate. The crosslinking reaction between diamine and acetoacetoxy groups occurs at a rapid rate, even in the dispersed state. Although the crosslinking reaction precedes polymer diffusion in the two systems we examined, latex films with relatively good solvent resistance are obtained. |
| Note de contenu : |
- EXPERIMENTAL : Latex sample preparation and characterization - Analysis of film properties
- RESULTS AND DISCUSSION : The film drying process - Characterization of film crosslinking - Polymer diffusion rates vs. crosslinking rate |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18006 |
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 70, N° 881 (06/1998) . - p. 57-68
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