Rheology and structure formation in diluted mixed particle-surfactant systems |
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Authors: | Limage Stéphanie Krägel Jurgen Schmitt Murielle Dominici Christian Miller Reinhard Antoni Mickael |
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Affiliation: | Universite? d'Aix Marseille UMR-CNRS 6263 ISM2, France. |
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Abstract: | In the present work, we focus on the bulk rheology of mixtures consisting of surfactant modified silica nanoparticles in water. Depending on the ratio of surfactant and nanoparticle concentrations, significant modifications in the measured rheology are evidenced. A domain where the dispersions behave like viscoelastic media is observed. Outside this domain, the dispersions exhibit viscous properties. The changes in the bulk rheology characteristics are discussed in terms of interaction effects between the surfactant and the particles. The results obtained are seen in the context of diluted emulsions' properties and characteristics. |
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