Rheology of attractive emulsions

Sujit S. Datta; Dustin D. Gerrard; Travers S. Rhodes; Thomas G. Mason; David A. Weitz

doi:10.1103/PhysRevE.84.041404

Rheology of attractive emulsions

Sujit S. Datta, Dustin D. Gerrard, Travers S. Rhodes, Thomas G. Mason, David A. Weitz

Research output: Contribution to journal › Article › peer-review

102 Scopus citations

Abstract

We show how attractive interactions dramatically influence emulsion rheology. Unlike the repulsive case, attractive emulsions below random close packing, φ_RCP, can form soft gel-like elastic solids. However, above φ_RCP, attractive and repulsive emulsions have similar elasticities. Such compressed attractive emulsions undergo an additional shear-driven relaxation process during yielding. Our results suggest that attractive emulsions begin to yield at weak points through the breakage of bonds, and, above φ_RCP, also undergo droplet configurational rearrangements.

Original language	English (US)
Article number	041404
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	84
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevE.84.041404
State	Published - Oct 25 2011
Externally published	Yes

All Science Journal Classification (ASJC) codes

Statistical and Nonlinear Physics
Statistics and Probability
Condensed Matter Physics

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10.1103/PhysRevE.84.041404

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abstract = "We show how attractive interactions dramatically influence emulsion rheology. Unlike the repulsive case, attractive emulsions below random close packing, φRCP, can form soft gel-like elastic solids. However, above φRCP, attractive and repulsive emulsions have similar elasticities. Such compressed attractive emulsions undergo an additional shear-driven relaxation process during yielding. Our results suggest that attractive emulsions begin to yield at weak points through the breakage of bonds, and, above φRCP, also undergo droplet configurational rearrangements.",

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AU - Gerrard, Dustin D.

AU - Rhodes, Travers S.

AU - Mason, Thomas G.

AU - Weitz, David A.

PY - 2011/10/25

Y1 - 2011/10/25

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AB - We show how attractive interactions dramatically influence emulsion rheology. Unlike the repulsive case, attractive emulsions below random close packing, φRCP, can form soft gel-like elastic solids. However, above φRCP, attractive and repulsive emulsions have similar elasticities. Such compressed attractive emulsions undergo an additional shear-driven relaxation process during yielding. Our results suggest that attractive emulsions begin to yield at weak points through the breakage of bonds, and, above φRCP, also undergo droplet configurational rearrangements.

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Rheology of attractive emulsions

Abstract

All Science Journal Classification (ASJC) codes

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