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ANR EVAPEC 13-BS09-0010-01
Drying of complex fluids in dip-coating-like experiments
 


Contact person

F. Doumenc (Project coordinator)


Partners

  • Laboratoire FAST, UMR 7608 (UPSud,CNRS) [FAST web page ]
  • Involved scientists: M. Dey, F. Doumenc, B. Guerrier


  • Laboratoire LOF, UMR 5258 (Univ. Bordeaux,CNRS, Solvay) [LOF web page ]
  • Involved scientists: J. Leng, C.Loussert, L. Romasanta, J.B.Salmon


    Abstract

    Coupling between hydrodynamic and evaporation in polymer solution or colloidal dispersion coatings

    Coating processes based on the application and drying of a dilute solution or dispersion are used in many industrial applications to get coatings with specific properties. However many questions are open about the understanding of the involved mechanisms. Indeed hydrodynamic flow, mass transfer and change in physico-chemical properties may occur simultaneously, as in the problem studied in the EVAPEC project. We consider a dip-coating-like process with slow pulling velocity so that evaporation at the meniscus scale is significant (cf. figure). Two model systems are used: (i) a polymer solution with a strong increase of the viscosity when the solvent concentration decreases, and a rapid decrease of the activity (and thus of the evaporation rate) at the end of the meniscus, (ii) a colloidal dispersion that, unlike polymer solution, may become a dense porous film saturated with water, and that evaporates on a length much larger than the meniscus size. We have characterized different regimes depending on the process parameters and drawn conclusions on the coupling between the flow and the final state of the dry film.


    Publications

  • Solidification of a charged colloidal dispersion investigated using microfluidic pervaporation
    N.Ziane, J.B.Salmon Langmuir 31 (2015). [Abstract ]
  • Surface deformation and film corrugation during drying of polymer solutions induced by Marangoni phenomena
    S.G. Yiantsios, S.K. Serpetsi, F.Doumenc, B.Guerrier IJHMT 89 (2015). [Abstract ]
  • Numerical simulation of dip-coating in the evaporative regime
    M. Dey, F. Doumenc, B. Guerrier Eur. Phys. J. E 39 (2016). [Abstract ] [Download article]
  • Modeling flow coating of colloidal dispersions in the evaporative regime: prediction of deposit thickness
    F. Doumenc, J.B. Salmon, B. Guerrier Langmuir 32 13657-13668 (2016) [Abstract ] [Download article]
  • Drying dynamics of a charged colloidal dispersion in a confined drop
    C. Loussert, A. Bouchaudy, J.B. Salmon Phys. Rev. Fluids 1 084201 (2016) [Abstract ] [Download article]
  • Humidity-insensitive water evaporation from molecular complex fluids
    J.B. Salmon, F. Doumenc, B. Guerrier Phys. Rev. E 96 032612 (2017) [Abstract ] [Download article]
  • Steady Microfluidic Measurements of Mutual Diffusion Coefficients of Liquid Binary Mixtures
    A. Bouchaudy, C. Loussert, J.-B. Salmon AIChE 64 358 (2017) [Abstract ] [Download article]
  • Role of vapor mass transfer in flow coating of colloidal dispersions in the evaporative regime
    C. Loussert, F. Doumenc, J.B. Salmon, V. Nikolayev, B. Guerrier Langmuir 33 14078-14086 (2017) [Abstract ] [Download article]

  • Conferences

  • F.Doumenc, B.Guerrier, IMA7, 7th Conference of the International Marangoni Association (Vienna, Austria, June 2014): Self-patterning induced by a solutal Marangoni effect in a receding drying meniscus
  • M.Dey, F.Doumenc, B.Guerrier, 18ème Rencontre du Non Linéaire (Paris, France, Mars2015) : Auto-organisation d'un dépôt induit par évaporation et effet Marangoni solutal.
  • C.Loussert, J.B.Salmon, J.Leng, B.Selva, B.Guerrier, F.Doumenc, European coating symposium 2015 (ECS 15) (Eindhoven, September 9-11 2015): Local characterization of a complex fluid drying in a dip-coating-like experiment.
  • M.Dey, F.Doumenc,B.Guerrier, European coating symposium 2015 (ECS 15) (Eindhoven, September 9-11 2015) : Self-patterning induced by evaporation and solutal Marangoni effect.
  • JB. Salmon, Droplet 2015, (Twente, octobre 2015): Drying of complex fluids in confined droplets.
  • C.Loussert, J.B.Salmon, J.Leng, B.Selva, B.Guerrier, F.Doumenc, Droplets 15 (Twente, octobre 2015): Local characterization of a complex fluid drying in a dip-coating-like experiment.
  • F. Doumenc, J.B. salmon, C. Loussert and B. Guerrier, IMA8, 8th Conference of the International Marangoni Association (Bad Honnef, Germany, June 2016): Drying of colloidal dispersion in a blade coating configuration: from dilute dispersion to porous medium.
  • F. Doumenc, J.B. Salmon, B. Guerrier, Rencontres 2016 du GDR AMC2 (Banyuls-sur-Mer, France, 13-15 novembre 2016) : Modeling flow coating of colloidal dispersions in the evaporative regime.
  • C. Loussert, F. Doumenc, J.B. salmon, V.S. Nikolayev and B. Guerrier, European coating symposium 2017 (ECS 17), (Fribourg, Swiss, November 8-10 2017): Role of vapor transfer on flow coating of colloidal dispersions in the evaporative regime.
  • JB. Salmon, International Polymer Colloids Group, (Arantzazu, Spain, June 2017): Drying of complex fluids in confined droplets
  • JB. Salmon, Division of Fluid Dynamics, American Physical Society, (Denver, Colorado, November 2017): Drying of complex fluids in confined droplets and collective diffusion coefficients

    Dernière modification : January 22 2018, 10:52:51.