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Issue 17, 2012
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Shear thickening of Laponite suspensions with poly(ethylene oxide)

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Abstract

We study the effect of addition of polyethylene oxide (PEO) on the rheological behavior of suspensions of Laponite. Experiments were performed on mixtures of PEO and Laponite at different concentrations. These mixtures can exhibit very strong shear thickening behavior: under shear, the suspension can become a yield stress material sufficiently strong to support its own weight. Depending on the polymer concentration, we observe continuous or discontinuous shear thickening mechanisms; it is the discontinuous shear thickening that leads to the formation of yield stress materials.

Graphical abstract: Shear thickening of Laponite suspensions with poly(ethylene oxide)

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Publication details

The article was received on 02 Nov 2011, accepted on 27 Jan 2012 and first published on 07 Mar 2012


Article type: Paper
DOI: 10.1039/C2SM07089H
Citation: Soft Matter, 2012,8, 4645-4651
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    Shear thickening of Laponite suspensions with poly(ethylene oxide)

    A. Fall and D. Bonn, Soft Matter, 2012, 8, 4645
    DOI: 10.1039/C2SM07089H

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