[article]
| Titre : |
The development of 2K waterborne polyurethane anti-graffiti coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Philippe Barbeau, Auteur ; Wu Xiaodong, Auteur ; Richard Rosen, Auteur ; Philippe Olier, Auteur |
| Année de publication : |
2009 |
| Article en page(s) : |
p. 24-30 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Polyuréthanes
Revêtements anti-graffitis
Revêtements en phase aqueuse:Peinture en phase aqueuse
Revêtements protecteurs
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Over the past yezars, two components waterborne polyurethane systems have been developed successfully in a number of industrial application fields, in particularly due to the need for environmentally friendlyformulations using lower amounts or Volatile Organic Compounds. in this paper, the development and the performances of 2K waterborne polyurethane anti-graffiti coatings is presented. A formulation platform methodology has effectively been applied to explore and optimize the film properties with the number of formulation parameters. More particularly, the effect of isocyanate composition, NCO/OH ration, and percentage of fluorine content on anti-graffiti performance has been studied. The surface and bulk film properties have been correlated with the anti-graffiti performance. It is found that incorporating IPDI trimer in the hardener to chieve improved barrier properties and the fluorine content at (or near) the coating surface are the most important factors for excellent anti-graffiti performance. In addition, these waterborne coatings demonstrate excellent recoatibility and exceptional chemical resistance. |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5652 |
in DOUBLE LIAISON > N° 568 (05/2009) . - p. 24-30
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