| Titre : |
Preparation of waterborne phosphated acrylate–epoxy hybrid dispersions and their application as coil coating primer |
| Type de document : |
texte imprimé |
| Auteurs : |
Jianfeng Yu, Auteur ; Hongxia Pan, Auteur ; Xiaodong Zhou, Auteur |
| Année de publication : |
2014 |
| Article en page(s) : |
p. 361-369 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Coil coatings
Epoxydes
Formulation (Génie chimique)
Phosphatation
Polyacrylates
Primaire (revêtement)
Revêtements en phase aqueuse
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
In this paper, a series of waterborne acrylic-modified epoxy hybrid dispersions were synthesized and successfully used as primers for coil coatings. Epoxy was phosphated to improve its adhesion to the metal substrate. The grafting reaction of acrylate monomers onto the high molecular weight epoxy resins was studied with infrared spectroscopy, differential scanning calorimetry, and nuclear magnetic resonance. The structure and resin molecules were found to be as expected and the film had the best performance when the acrylate monomer made up less than 40 wt% of the epoxy resin. Modification of the epoxy with phosphoric acid could increase the adhesion to the metal substrate. Better adhesion was achieved with greater amounts of phosphoric acid. R578 urea resin was found to be the most suitable for crosslinking of the resin in this system, and a paint film based on the resulting resin had excellent overall performance. |
| Note de contenu : |
- EXPERIMENT : Raw materials - Formulations for waterborne phosphated acrylate-epoxy hybrid dispersions - Preparation of waterborne phosphated acrylate-epoxy hybrid dispersions - Preparation of waterborne coil primer coating - Preparation of coated samples - Waterborne resin and coating performance tests
- RESULTS AND DISCUSSION : Preparation of acrylic-modified epoxy hybrid dispersions - FTIR analysis of waterborne phosphated acrylate-epoxy hybrid dispersions - NMR analysis of the waterbone phosphated acrylate-epoxy hybrid dispersions - GPC analysis of the waterborne phosphated acrylate-epoxy hybrid dispersions - DSC analysis - TGA analysis - Effect of neutralizer on resin dispersion properties - Effect of phosphoric acid dosage on resin and resin film properties - Effect of amount of acrylate monomer on the resin and resin film |
| DOI : |
10.1007/s11998-013-9556-5 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-013-9556-5.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21455 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 11, N° 3 (05/2014) . - p. 361-369
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