Rheology of Attractive Emulsions

Details Rheology of Attractive Emulsions Rheology of Attractive Emulsions

2012-01-12

arxiv.org/abs/1201.2680v1

Physical Review E 84, 041404 (2011)

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1103/PhysRevE.84.041404

We show how attractive interactions dramatically influence emulsion rheology. Unlike the repulsive case, attractive emulsions below random close packing, RCP, can form soft gel-like elastic solids. However, above 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 RCP, also undergo droplet configurational rearrangements.

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