| Titre : |
Scratch resistance of UV-cured acrylic clearcoats |
| Type de document : |
texte imprimé |
| Auteurs : |
I. Lorinczova, Auteur ; C. Decker, Auteur |
| Année de publication : |
2006 |
| Article en page(s) : |
p. 133-143 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Photoréticulation
Polyacryliques
Rayures
Résistance à l'abrasion
Vernis -- Séchage sous rayonnement ultraviolet
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The scratch and mar resistance of UV-cured acrylic clear coats was evaluated by means of the Taber scratch and Scotch-Brite tests. The influence of the chemical structure of the acrylate oligomer, of the photoinitiator and of the UV dose on the scratch resistance of various UV-cured coatings was evaluated quantitatively. No direct correlation could be found between the scratch resistance and the hardness of the UV-cured polymer. The scratch resistance was evaluated through measurements of the ductile/brittle transition and was significantly enhanced by the addition of a siloxane slip agent and of acrylated silica nanoparticles. A self-healing process of ductile scratches was shown to occur in most of these coatings upon storage at ambient temperatures or upon moderate heating. |
| Note de contenu : |
- Definitions and evaluation of the mar and scratch resistance
- Experimental
- Results and discussion : Influence of the UV dose - Hardness - scratch resistance correlation - Influence of the substrate and the film thickness - Influence of additives - Influence of storage and temperature - Healing process |
| DOI : |
10.1007/BF02699643 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/BF02699643.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5384 |
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 89, B2 (06/2006) . - p. 133-143
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Scratch resistance of UV-cured acrylic clearcoats in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 89, B2 (06/2006)
