Titre : |
New alternative to 2K polyurethane topcoats : Novel 1K and 2K moisture-curing vinyl alkoxysilane technology |
Type de document : |
texte imprimé |
Auteurs : |
Nathalie Havaux, Auteur ; Denis Heymans, Auteur |
Année de publication : |
2019 |
Article en page(s) : |
p. 38-43 |
Note générale : |
Bibliogr. |
Langues : |
Anglais (eng) |
Catégories : |
Alcoxyde de silicone Métaux -- Revêtements protecteurs polymères vinyliques Réticulation à l'humidité Vernis
|
Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
Moisture-curing topcoats based on acrylic- and epoxy-alkoxysiloxane resins have been increasingly used as isocyanate-free alternatives in marine and protective applications. Like 2K polyurethanes, these systems display a broad range of performance characteristics, depending on their structure and composition. However, these alternatives have seen limited market penetration, due to an unfavourable colt/performance ratio. |
Note de contenu : |
- The state of the art : moisture-curing alkoxysilanes
- Neocarboxylic acid-based monomers
- Vinyl silanes
- Copolymerisation of vinyl silanes and vinyl ester monomers
- Experimental
- Resin optimisation
- Benchmarking exercise
- Clearcoat performance
- Pigmented topcoat performance
- Fig. 1 : Moisture curing of alkoxysilane-based coatings
- Fig. 2 : Common vinylsilane monomers
- Fig. 3 : Silane MEK and Tg
- Fig. 4 : Hardness evolution of pigmented topcoats
- Fig. 5 : Radar charts
- Table 1 : Resin variables evaluated
- Table 2 : Properties of the liquid resins used for benchmarking purpose
- Table 3 : Properties of the vinyl silane and benchmark coatings |
En ligne : |
https://drive.google.com/file/d/1aWnuZk3kwXjlQ2qlnYRByeI1E-JZ6rsY/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33051 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 10 (10/2019) . - p. 38-43