Skip to main content
Fachgebiete
Automobil + Motoren Bauwesen + Immobilien Business IT + Informatik Elektrotechnik + Elektronik Energie + Nachhaltigkeit Finance + Banking Management + Führung Marketing + Vertrieb Maschinenbau + Werkstoffe Versicherung + Risiko
DE
EN
Bücher
Zeitschriften
Themenseiten
Organisationspsychologie Projektmanagement Marketing Smart Manufacturing
Weitere Formate
Podcasts Webinare Technik Webinare Wirtschaft Kongresse Veranstaltungskalender Awards
Jetzt Einzelzugang starten
Zugang für Unternehmen
Referenzkunden
SLX-Digitalkonferenz: Zukunftswerkstatt 2024

Mehr Umsatz mit Top-Kontakten

Am 7. Mai erfahren Sie, wie Vertriebsteams Leadgenerierung, Leadnurturing und Leadstrategien effizient steuern können.
Erweiterte Suche
Anmelden
nach oben
Journal of Coatings Technology and Research
Erschienen in: Journal of Coatings Technology and Research 5/2018

04.04.2018

Effect of upstream meniscus shape on dynamic wetting and operating limits of Newtonian coating liquids in slot coating bead flows

verfasst von: Won-Gi Ahn, Si Hyung Lee, Jaewook Nam, See Jo Kim, Kwan-Young Lee, Hyun Wook Jung

Erschienen in: Journal of Coatings Technology and Research | Ausgabe 5/2018

Einloggen

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config
loading …

Abstract

The coating bead flow and operability window for Newtonian coating liquids are theoretically and experimentally investigated in the slot coating process, with a focus on the shape of the upstream meniscus and contact angles. From the flow visualization in the coating bead region, the contact angles of the upstream meniscus were measured by changing the flow rate and web speed under uniform operating conditions. It was confirmed that the dynamic contact angle is closely related to the capillary number in this process, based on the Hoffman–Voinov–Tanner model. The viscocapillary and two-dimensional Navier–Stokes models using the experimentally observed contact angles accurately predicted the coating bead dynamics and operability windows for two Newtonian liquids.
Vorheriger Artikel Cyclodextrin-based hyperbranched polyester: synthesis, characterization, and antimicrobial activity
Nächster Artikel Fabrication and properties of polysilsesquioxane-based trilayer core–shell structure latex coatings with fluorinated polyacrylate and silica nanocomposite as the shell layer

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Jetzt informieren
Literatur
1.
Durian, DJ, Franck, C, “Wetting Phenomena of Binary Liquid Mixtures on Chemically Altered Substrates.” Phys. Rev. Lett., 59 (5) 555–558 (1987)CrossRef
2.
Extrand, CW, Kumagai, Y, “An Experimental Study of Contact Angle Hysteresis.” J. Colloid Interface Sci., 191 (2) 378–383 (1997)CrossRef
3.
Kistler, SF, Schweizer, PM, Liquid Film Coating. Chapman & Hall, London (1997)CrossRef
4.
Blake, TD, Shikhmurzaev, YD, “Dynamic Wetting by Liquids of Different Viscosity.” J. Colloid Interface Sci., 253 (1) 196–202 (2002)CrossRef
5.
Ruijter, D, Michel, J, Blake, TD, Coninck, JD, “Dynamic Wetting Studied by Molecular Modeling Simulations of Droplet Spreading.” Langmuir, 15 (22) 7836–7847 (1999)CrossRef
6.
Tanner, LH, “The Spreading of Silicone Oil Drops on Horizontal Surfaces.” J Phys. D. Appl. Phys., 12 (9) 1473–1484 (1979)CrossRef
7.
Huppert, HE, “The Propagation of Two-Dimensional and Axisymmetric Viscous Gravity Currents Over a Rigid Horizontal Surface.” J. Fluid Mech., 121 43–58 (1982)CrossRef
8.
Voinov, OV, “Hydrodynamics of Wetting.” Fluid Dyn., 11 (5) 714–721 (1976)CrossRef
9.
Bonn, D, Eggers, J, Indekeu, J, Meunier, J, Rolley, E, “Wetting and Spreading.” Rev. Mod. Phys., 81 (2) 739–805 (2009)CrossRef
10.
Hoffman, RL, “A Study of the Advancing Interface. I. Interface Shape in Liquid—Gas Systems.” J. Colloid Interface Sci., 50 (2) 228–241 (1975)CrossRef
11.
Higgins, BG, Scriven, LE, “Capillary-Pressure and Viscous Pressure-Drop Set Bounds on Coating Bead Operability.” Chem. Eng. Sci., 35 (3) 673–682 (1980)CrossRef
12.
Gates, ID, “Slot Coating Flows: Feasibility, Quality.” PhD Thesis, University of Minnesota, 1999
13.
Lee, SH, Koh, HJ, Ryu, BK, Kim, SJ, Jung, HW, Hyun, JC, “Operability Coating Windows and Frequency Response in Slot Coating Flows Using Viscocapillary Model.” Chem. Eng. Sci., 66 (21) 4953–4959 (2011)CrossRef
14.
Nam, J, Carvalho, MS, “Two-Layer Tensioned-Web-Over-Slot Die Coating: Effect of Operating Conditions on Coating Window.” Chem. Eng. Sci., 65 (13) 4065–4079 (2010)CrossRef
15.
Lee, YW, Ahn, WG, Nam, J, Jung, HW, “Operability Windows in Viscoelastic Slot Coating Flows Using a Simplified Viscoelastic-Capillary Model.” Rheol. Acta, 56 (9) 707–717 (2017)CrossRef
16.
Huh, C, Scriven, LE, “Hydrodynamic Model of Steady Movement of a Solid/Liquid/Fluid Contact Line.” J. Colloid Interface Sci., 35 (1) 85–101 (1971)CrossRef
17.
Kistler, SF, “Hydrodynamics of Wetting.” Wettability, 6 311–430 (1993)
18.
Ding, X, Liu, J, Harris, TAL, “A Review of the Operating Limits in Slot Die Coating Processes.” AIChE J., 62 (7) 2508–2524 (2016)CrossRef
19.
Didari, S, Ahmad, ZY, Veldhorst, JD, Harris, TAL, “Wetting Behavior of the Shear Thinning Power Law Fluids.” J. Coat. Technol. Res., 11 (1) 95–102 (2014)CrossRef
20.
Bhamidipati, KL, Didari, S, Bedell, P, Harris, TAL, “Wetting Phenomena During Processing of High-Viscosity Shear-Thinning Fluid.” J. Non-Newtonian Fluid Mech., 166 (12) 723–733 (2011)CrossRef
21.
Vandre, E, Carvalho, MS, Kumar, S, “Delaying the Onset of Dynamic Wetting Failure Through Meniscus Confinement.” J. Fluid Mech., 707 496–520 (2012)CrossRef
22.
Ji, HS, Ahn, WG, Kwon, I, Nam, J, Jung, HW, “Operability Coating Window of Dual-Layer Slot Coating Process Using Viscocapillary Model.” Chem. Eng. Sci., 143 122–129 (2016)CrossRef
23.
Ruschak, KJ, “Limiting Flow in a Pre-metered Coating Device.” Chem. Eng. Sci., 31 (11) 1057–1060 (1976)CrossRef
24.
Koh, HJ, Kwon, I, Jung, HW, Hyun, JC, “Operability Window of Slot Coating Using Viscocapillary Model for Carreau-Type Coating Liquids.” Korea-Aust. Rheol., 24 (2) 137–141 (2012)CrossRef
25.
Lee, SH, Kim, SJ, Nam, J, Hyun, WJ, Hyun, JC, “Effect of Sloped Die Lip Geometry on the Operability Window in Slot Coating Flows Using Viscocapillary and Two-Dimensional Models.” J. Coat. Technol. Res., 11 (1) 47–55 (2014)CrossRef
26.
De Santos, JM, “Two-Phase Concurrent Downflow Through Constricted Passage.” PhD Thesis, University of Minnesota, 1991
27.
Carvalho, MS, “Roll Coating Flows in Rigid and Deformable Gap.” PhD Thesis, University of Minnesota, 1996
28.
Lee, KY, Liu, LD, Liu, TJ, “Minimum Wet Thickness in Extrusion Slot Coating.” Chem. Eng. Sci., 47 (7) 1703–1713 (1992)CrossRef
29.
Sartor, L, “Slot Coating: Fluid Mechanics and Die Design.” PhD Thesis, University of Minnesota, 1990
Metadaten
Titel
Effect of upstream meniscus shape on dynamic wetting and operating limits of Newtonian coating liquids in slot coating bead flows
verfasst von
Won-Gi Ahn
Si Hyung Lee
Jaewook Nam
See Jo Kim
Kwan-Young Lee
Hyun Wook Jung
Publikationsdatum
04.04.2018
Verlag
Springer US
Erschienen in
Journal of Coatings Technology and Research / Ausgabe 5/2018
Print ISSN: 1547-0091
Elektronische ISSN: 1935-3804
DOI
https://doi.org/10.1007/s11998-018-0059-2

Weitere Artikel der Ausgabe 5/2018

Journal of Coatings Technology and Research 5/2018 Zur Ausgabe

Brief Communication

Natural compounds as potential algaecides for waterborne paints

OriginalPaper

Slot die stripe coating of low viscous fluids

Brief Communication

UV irradiation grafting of acrylamide onto dopamine-modified 316L stainless steel

OriginalPaper

High-performance one-pack ambient cross-linking latex binders containing low-generation PAMAM dendrimers and ZnO nanoparticles

OriginalPaper

Mathematical and empirical evaluation of accuracy of the Kubelka–Munk model for color match prediction of opaque and translucent surface coatings

OriginalPaper

Effect of orange peel attribute of automotive finishes on their blackness perception

Premium Partner

    Marktübersichten

    Die im Laufe eines Jahres in der „adhäsion“ veröffentlichten Marktübersichten helfen Anwendern verschiedenster Branchen, sich einen gezielten Überblick über Lieferantenangebote zu verschaffen. 

    Zur Marktübersicht
    Bildnachweise