- Physical Review Journals
All JournalsPhysics Magazine
Access Provided by Xinjiang University

Physical Review Fluids

Export citation

Export citation

Choose format for download:

Download Citation
  • Access by Xinjiang University

Forced dynamic dewetting of structured surfaces: Influence of surfactants

Franziska Henrich1, Dorota Linke1, Hans Martin Sauer2, Edgar Dörsam2, Steffen Hardt3, Hans-Jürgen Butt1, and Günter K. Auernhammer1,4,*

  • 1Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
  • 2Technische Universität Darmstadt, Institut für Druckmaschinen und Druckverfahren, Magdalenenstrasse 2, 64289 Darmstadt, Germany
  • 3Technische Universität Darmstadt, Fachgebiet Nano- und Mikrofluidik, Alarich-Weiss-Straße 10, 64287 Darmstadt, Germany
  • 4Leibniz Institut für Polymerforschung, Hohe Straße 6, 01069 Dresden, Germany

  • *auernhammer@ipfdd.de
PDF

Phys. Rev. Fluids 4, 124202 – Published 9 December, 2019

DOI: https://doi.org/10.1103/PhysRevFluids.4.124202

Abstract

We analyze the dewetting of printing plates for gravure printing with well-defined gravure cells. The printing plates were mounted on a rotating horizontal cylinder that is half immersed in an aqueous solution of the anionic surfactant sodium 1-decanesulfonate. The gravure plates and the presence of surfactants serve as one example of a real-world dewetting situation. When rotating the cylinder, a liquid meniscus was partially drawn out of the liquid forming a dynamic contact angle at the contact line. The dynamic contact angle is decreased on a structured surface as compared to a smooth one. This is due to contact line pinning at the borders of the gravure cells. Additionally, surfactants tend to decrease the dynamic receding contact angle. We consider the interplay between these two effects. We compare the height differences of the meniscus on the structured and unstructured area as a function of dewetting speeds. The height difference increases with increasing dewetting speed. With increasing size of the gravure cells, this height difference and the induced changes in the dynamic contact angle increased. By adding surfactant, the height difference and the changes in the contact angle for the same surface decreased. We further note that although the liquid dewets the printing plates, some liquid is always left in the gravure cell. At high enough surfactant concentrations or high enough dewetting speed, the dynamic contact angles in the structured surface approach those in flat surfaces. We conclude that surfactant reduces the influence of surface structure on dynamic dewetting.

View figure in article

Physics Subject Headings (PhySH)

Article Text

References (44)

  1. N. Gao et al., How drops start sliding over solid surfaces, Nat. Phys. 14, 191 (2017).
  2. Y. Zheng, X. Gao, and L. Jiang, Directional adhesion of superhydrophobic butterfly wings, Soft Matter 3, 178 (2007).
  3. D. Bonn et al., Wetting and spreading, Rev. Mod. Phys. 81, 739 (2009).
  4. S. Kumar, Liquid transfer in printing processes: liquid bridges with moving contact lines, Annu. Rev. Fluid Mech. 47, 67 (2015).
  5. T. W. Walker et al., Enhanced particle removal using viscoelastic fluids, J. Rheol. (1978–present) 58, 63 (2014).
  6. V. Andreev et al., Silicon-wafer cleaning with aqueous surfactant-stabilized gas/solids suspensions, J. Electrochem. Soc. 158, H55 (2011).
  7. F. Zhang et al., The removal of deformed submicron particles from silicon wafers by spin rinse and megasonics, J. Electron. Mater. 29, 199 (2000).
  8. W. Kern, The evolution of silicon wafer cleaning technology, J. Electrochem. Soc. 137, 1887 (1990).
  9. J. H. Snoeijer and B. Andreotti, Moving contact lines: scales, regimes, and dynamical transitions, Annu. Rev. Fluid Mech. 45, 269 (2013).
  10. A. Marmur, Solid-surface characterization by wetting, Annu. Rev. Mater. Res. 39, 473 (2009).
  11. P. G. De Gennes, Wetting: statics and dynamics, Rev. Mod. Phys. 57, 827 (1985).
  12. T. D. Blake and J. M. Haynes, Kinetics of liquid-liquid displacement, J. Colloid Interface Sci. 30, 421 (1969).
  13. T. D. Blake, The physics of moving wetting lines, J. Colloid Interface Sci. 299, 1 (2006).
  14. J. Eggers and H. A. Stone, Characteristic lengths at moving contact lines for a perfectly wetting fluid: the influence of speed on the dynamic contact angle, J. Fluid Mech. 505, 309 (2004).
  15. R. G. Cox, The dynamics of the spreading of liquids on a solid surface. Part 1. Viscous flow, J. Fluid Mech. 168, 169 (1986).
  16. O. V. Voinov, Hydrodynamics of wetting, Fluid Dyn. 11, 714 (1976).
  17. D. Quéré, Wetting and roughness, in Annu. Rev. Mater. Res., Annu. Rev.: Palo Alto 38, 71 (2008).
  18. K. Dieter-Kissling, H. Marschall, and D. Bothe, Numerical method for coupled interfacial surfactant transport on dynamic surface meshes of general topology, Comput. Fluids 109, 168 (2015).
  19. F. Schönfeld and S. Hardt, Dynamic contact angles in CFD simulations, Comput. Fluids 38, 757 (2009).
  20. X. Wang, L. Chen, and E. Bonaccurso, Comparison of spontaneous wetting and drop impact dynamics of aqueous surfactant solutions on hydrophobic polypropylene surfaces: scaling of the contact radius, Colloid Polym. Sci. 293, 257 (2015).
  21. D. Y. C. Chan, E. Klaseboer, and R. Manica, Dynamic deformations and forces in soft matter, Soft Matter 5, 2858 (2009).
  22. O. Manor et al., Hydrodynamic Boundary Conditions and Dynamic Forces Between Bubbles and Surfaces, Phys. Rev. Lett. 101, 024501 (2008).
  23. Y. Amarouchene, G. Cristobal, and H. Kellay, Noncoalescing Drops, Phys. Rev. Lett. 87, 206104 (2001).
  24. F. Henrich et al., Influence of surfactants in forced dynamic dewetting, Soft Matter 12, 7782 (2016).
  25. D. Truszkowska et al., Forced dewetting dynamics of high molecular weight surfactant solutions, Colloids Surf. A 521, 30 (2017).
  26. D. Fell et al., Influence of surfactant concentration and background salt on forced dynamic wetting and dewetting, Langmuir 27, 2112 (2011).
  27. D. Fell et al., Influence of surfactant transport suppression on dynamic contact angle hysteresis, Colloid Polym. Sci., 291, 361 (2013).
  28. H.-J. Butt, K. Graf, and M. Kappl, Physics and Chemistry of Interfaces (Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany, 2003).
  29. H. C. Mayer and R. Krechetnikov, Landau-Levich flow visualization: Revealing the flow topology responsible for the film thickening phenomena, Phys. Fluids 24, 052103 (2012).
  30. M. Anyfantakis et al., Time-dependent dynamic receding contact angles studied during the flow of dilute aqueous surfactant solutions through fluorinated microtubes, Chem. Lett. 41, 1232 (2012).
  31. K. S. Varanasi and S. Garoff, Unsteady motion of receding contact lines of surfactant solutions: The role of surfactant re-self-assembly, Langmuir 21, 9932 (2005).
  32. N. T. Chamakos et al., Droplet spreading on rough surfaces: Tackling the contact line boundary condition, Phys. Fluids 28, 022105 (2016).
  33. J. Wang et al., Surface structure determines dynamic wetting, Sci. Rep. 5, 8474 (2015).
  34. J. F. Joanny and M. O. Robbins, Motion of a contact line on a heterogeneous surface, J. Chem. Phys. 92, 3206 (1990).
  35. J. A. Lee, J. P. Rothstein, and M. Pasquali, Computational study of viscoelastic effects on liquid transfer during gravure printing, J. Non-Newtonian Fluid Mech. 199, 1 (2013).
  36. B. Thompson, Printing Materials: Science and Technology (Pira International, Leatherhead, UK, 2004).
  37. S. Herminghaus, M. Brinkmann, and R. Seemann, Wetting and dewetting of complex surface geometries, Annu. Rev. Mater. Res. 38, 101 (2008).
  38. S. Herminghaus, Roughness-induced non-wetting, Europhys. Lett. 52, 165 (2000).
  39. T. F. Eibach et al., Measuring contact angle and meniscus shape with a reflected laser beam, Rev. Sci. Instrum. 85, 013703 (2014).
  40. T. S. Chan, T. Gueudré, and J. H. Snoeijer, Maximum speed of dewetting on a fiber, Phys. Fluids 23, 112103 (2011).
  41. A. W. Neumann, Contact angles and their temperature dependence: thermodynamic status, measurement, interpretation and application, Adv. Colloid Interface Sci. 4, 105 (1974).
  42. Z. He and C. Maldarelli et al., The size of stagnant caps of bulk soluble surfactant on the interfaces of translating fluid droplets, J. Colloid Interface Sci. 146, 442 (1991).
  43. S. S. Dukhin et al., Dynamics of rear stagnant cap formation at the surface of spherical bubbles rising in surfactant solutions at large Reynolds numbers under conditions of small Marangoni number and slow sorption kinetics, Adv. Colloid Interface Sci. 222, 260 (2015).
  44. G. Deleon, M. Fermigier, J. H. Snoeijer, and B. Andreotti, Relaxation of a dewetting contact line. Part 2. Experiments, J. Fluid Mech. 604, 55 (2008).

Outline

Information

Phys. Rev. Fluids 4, 124202– Published 9 December, 2019
  • Received 4 September 2017
Crossmark - Check for updates button

©2019 American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation