Spreading of an Oil-in-Water Emulsion on a Glass Plate: Phase Inversion and Pattern Formation | Zendy

Antoine Deblais | Zendy; R. Harich | Zendy; Daniel Bonn | Zendy; Annie Colin | Zendy; H. Kellay | Zendy

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Spreading of an Oil-in-Water Emulsion on a Glass Plate: Phase Inversion and Pattern Formation

Author(s) -

Antoine Deblais,

R. Harich,

Daniel Bonn,

Annie Colin,

H. Kellay

Publication year - 2015

Publication title -

langmuir

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.042

H-Index - 333

eISSN - 1520-5827

pISSN - 0743-7463

DOI - 10.1021/la504639q

Subject(s) - emulsion , phase inversion , inversion (geology) , deposition (geology) , materials science , coating , phase (matter) , composite material , optics , mineralogy , chemistry , geology , physics , membrane , organic chemistry , paleontology , biochemistry , structural basin , sediment

Rigid blade coating of glass plates by oil-in-water emulsions stabilized by surfactants is studied. Complete surface coverage is obtained only for speeds exceeding a threshold velocity dependent on the height between the blade end and the surface. Below this threshold, the emulsion can be inverted in the vicinity of the blade. The inversion dynamics of the oil-in-water emulsion and the deposition patterns induced by this phase inversion are studied using a microscope mounted set up. We show that these dynamics are universal for different volume fractions and deposition velocities. This inversion as well as the destabilization of the emulsion film deposited at high speeds gives rise to different patterns on the glass surface. These patterns are discussed in terms of the emulsion characteristics as well as the deposition velocity.

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