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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Poulard, Christophe
University of Paris-Saclay
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2022Controlling rheology of a solid emulsion with phase-changing droplets
- 2022Rheology and adhesion of droplets in a soft elastic matrix
- 2022Liquid beads in an elastic matrix: Rheology of a solid emulsion with phase changing droplets
- 2021Controlling the rheology of a solid emulsion with liquid droplets
- 2007Slippery or Sticky Boundary Conditions: Control of Wrinkling in Metal-Capped Thin Polymer Films by Selective Adhesion to Substratescitations
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document
Controlling the rheology of a solid emulsion with liquid droplets
Abstract
International audience ; Emulsions are interesting systems that show dependencies on the rheological properties of the continuous and dispersed phases and their interface. By solidifying the continuous phase and keeping the dispersed phase liquid we can create a composite viscoelastic material that can be tuned by changing the viscosity of the dispersed phase, the elasticity of the continuous phase and/or the surface properties, in particular the surface tension between the two phases, which changes the capillary stresses within the emulsion.Here we study such a “solid emulsion” with a crosslinked PDMS (poly(dimethyl) siloxane) continuous phase. The dispersed phase is at first pure PEG (poly(ethylene) glycol), or PEO (poly(ethylene) oxide) solutions in PEG in order to vary the viscosity of the liquid phase while keeping it in a Newtonian regime. Previous theoretical work has shown that we can expect to see different rheological responses depending on the dispersed phase viscosity, the size of the droplets in the solid matrix and the volume fraction of liquid. [1]The aim of this work is to show the feasibility of a composite system whose storage and loss moduli can be controlled independently, as opposed to the commonly used viscoelastic materials such as adhesives and gels.[1] Palierne, (1990). Rheologica Acta, 29(3), 204-214