[article]
| Titre : |
Novel acrylamide based curing agents for water borne coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Niranjan Patel, Auteur ; Randhir Parmar, Auteur ; Tushar P. Patel, Auteur ; Jayant S. Parmar, Auteur |
| Année de publication : |
2004 |
| Article en page(s) : |
p. 73-84 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The water-borne acrylamide based curing agents (WACAs) were synthesized using various proportions of methylmethacrylate (MMA), formaldehyde and methanol. These curing agents were blended with water borne hydroxyl functional acrylic resins (WHFAC) and the resulting compositions were applied on test panels. The coating compositions were also made from conventional hexamethoxy methyl melamine (HMMM) resin for comparison study. All the coated panels were stored at 150°C for 15 mins. The WACAs were characterized for their physical properties, IR-spectra and molecular weight by GPC. The coated films were also characterized for their mechanical properties, chemical, solvent, and water resistance and for thermal properties by TGA and DSC. The results indicate that comparable coating performance is achieved for some of the coating compositions under study. |
| Note de contenu : |
EXPERIMENTAL: Material and methods- Synthesis of waterborne acrylamide based curing agent (WACA) - Structure and characterization of WACA - Preparation and application of the coating compositions - Coated film characterization
RESULTS AND DISCUSSION: IR spectra - TGA study - DSC study - Adhesion and flexibility - Impact resistance - Scratch hardness - Chemical resistance and solvent resistance - Hot water and salt water immersion resistance |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11991 |
in PAINTINDIA > Vol. LIV, N° 7 (07/2004) . - p. 73-84
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