| Titre : |
Electrophoretic deposition of waterborne ultraviolet (UV)-curable coatings based on microgels |
| Type de document : |
texte imprimé |
| Auteurs : |
Junhua Chen, Auteur ; Teng Yuan, Auteur ; Weiping Tu, Auteur ; Kaimei Peng, Auteur ; Jianqing Hu, Auteur ; Feng Wang, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 1367-1378 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Dépôt électrophorétique
MicrogelsUn microgel est un gel formé à partir d'un réseau de filaments microscopiques de polymères
Polyéther imide
Polymères ramifiés
Résistance à la traction
Revêtements -- Séchage sous rayonnement ultraviolet
Revêtements organiques
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Microgels are novel functional polymers with an intramolecular crosslinked structure that can significantly improve the mechanical properties of coatings. We demonstrate herein for the first time successful fabrication of microgels based on branched poly(ethylenimine) (PEI) and their incorporation into water-soluble polyacrylate (WPA), with subsequent preparation of compact coatings via electrophoretic deposition (EPD) and ultraviolet (UV) radiation. The films including the microgels exhibited tensile strength and elongation at breakage values above 6.82 MPa and 72.09%, respectively. The coatings showed good thermal stability, decreased water absorption, outstanding durability, and rust resistance after immersion in 5 wt% NaCl solution for 7 days at 40°C. This work provides a new strategy that can be readily applied to a variety of conductive substrates. |
| Note de contenu : |
- MATERIALS AND METHODS : Materials - Synthesis of acrylate prepolymer - Synthesis of microgels with hyperbranched structure - Preparation of UV-curable EPD coatings - Characterization
- RESULTS AND DISCUSSION : FTIR and 1H NMR analyses of PIK monomer - Particle size control of WPA-PIK emulsions - Thermal stability of waterborne UV-curable EPD coatings - Mechanical properties and water resistance - Other physical properties of UV-curable EPD coatings |
| DOI : |
10.1007/s11998-019-00219-0 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-019-00219-0.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33017 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 5 (09/2019) . - p. 1367-1378
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