| Titre : |
1K PUR dispersion with comparable performance to 2K waterborne coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Makoto Nakao, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 22-27 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Dispersions et suspensions
Essais accélérés (technologie)
Formulation (Génie chimique)
Polyuréthanes
Résistance à l'humidité
Résistance aux taches
Résistance chimique
Revêtement monocomposant
Revêtements -- Propriétés physiques
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The Next-gen 1K PUD, a novel 1K PU dispersion, outperformed commercially available 1K PUDs by exceeding their chemical and stain resistance and matched even the performance of crosslinked 2KWB coatings. Moreover, the Next-gen 1KPUD demonstrated faster dry times than the 2KWB coatings, which will increase productivity during the coating application. A coating formulated with the Next-gen 1KPUD passed all the AAMA 615-13 physical performance requirements. Further, its film hardness matched that of a crosslinked 2KWB coating. Finally, accelerated weathering tests under QUV-A and Xenon arc exposure showed that a coating formulated with Next-gen 1KPUD will perform commercially available 1K PUDs and a 2KWB coating that were evaluated. |
| Note de contenu : |
- EXPERIMENTAL : Physical properties comparison with high-performance PUD and 2KWB PU system - Physical properties for American Architectural Manufacturer Association 615-13 performance evaluation - Accelerated weathering
- RESULTS AND DISCUSSION : Physical properties comparison with high-performance PUD and 2KWB PU - Physical properties for AAMA 615-13 performance evaluation - Accelerated weathering performance
- Table 1 : Key properties of a Newly Developed 1KPUD
- Table 2 : Characteristics of high-performance PUDs and 2KWB systems
- Table 3 : Physical properties for AAMA 615-13
- Table 4 : Generic formulation used for this study
- Table 5 : Base formulations for accelerated weathering study
- Table 6 : Results of chemical resistance and stain resistance
- Table 7 : Results of dry times and König pendulum hardness development
- Table 8 : Results of Humidity resistance
- Table 9 : Results of physical properties for AAMA 615-13
- Fig. 1 : Gloss retention results of QUV-A ASTM D4587 (cycle 2)
- Fig. 2 : Results of Xenon arc ASTM D6695 (cycle 1) |
| En ligne : |
https://drive.google.com/file/d/13a9N-bNeXZljqfVjWv9TqmOs60ImMhbd/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31851 |
in COATINGS TECH > Vol. 16, N° 2 (02/2019) . - p. 22-27
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