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Analytical determination of process windows for bilayer slot die coating / Marcel Schmitt in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 5 (09/2015)
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inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 12, N° 5 (09/2015) . - p. 877-887
Titre : Analytical determination of process windows for bilayer slot die coating Type de document : texte imprimé Auteurs : Marcel Schmitt, Auteur ; Sebastian Raupp, Auteur ; Dennis Wagner, Auteur ; Philip Scharfer, Auteur ; Wilhelm Schabel, Auteur Année de publication : 2015 Article en page(s) : p. 877-887 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Accumulateurs lithium-ion
Enduction par filière
Fluides non newtoniens
Revêtements multicouchesIndex. décimale : 667.9 Revêtements et enduits Résumé : Slot die coating is a film casting process with a highly diverse variety of everyday applications. As a pre-metered process it not only guarantees excellent film uniformity, but is also suitable for simultaneously applied multilayer coatings. Characteristic singularities like the behavior of the liquid–liquid interface and the impact of the additional mid-lip on film uniformity were already investigated before. However, the effect of an altered gap pressure regime on commonly used coating windows has not yet been discussed. In this work, we therefore extended available single-layer coating windows for Newtonian and power-law liquids to the bilayer case. Here, the emphasis was laid on the air entrainment limit. Subsequently, the theoretical results were compared to experimental data. It was found that the onset of air entrainment strongly depends on the top to bottom film thickness ratio for bilayer coatings. A critical film thickness ratio which delivers similar coating limits as those for single-layer coatings was derived and confirmed by experimentally gained results. Note de contenu : - Calculation of the single-layer coating bead pressure
- Calculation of the bilayer coating bead pressureDOI : 10.1007/s11998-015-9701-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9701-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24688 [article]Réservation
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