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Cluster, glass, and gel formation and viscoelastic phase separation in aqueous clay suspensions

Shalkevich, Andrey ; Stradner, Anna ; Bhat, Suresh Kumar ; Muller, François ; Schurtenberger, Peter

In: Langmuir, 2007, vol. 23, no. 7, p. 3570 -3580

We have systematically investigated the phase diagram of clay particles in water to understand the relation between the local and macroscopic properties and the structures of clay suspensions. We focused, in particular, on sodium Cloisite (CNa) particles at concentrations typically used in nanocomposites (concentrations from 1 to 4 wt %) and at an extended range of ionic strengths (10⁻⁵ to...