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

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 nanocompo...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 23(2007), 7 vom: 27. März, Seite 3570-80
1. Verfasser: Shalkevich, Andrey (VerfasserIn)
Weitere Verfasser: Stradner, Anna, Bhat, Suresh Kumar, Muller, François, Schurtenberger, Peter
Format: Aufsatz
Sprache:English
Veröffentlicht: 2007
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a 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 10(-2) M NaCl). The suspensions have been characterized using rheology and a combination of scattering techniques (neutrons, X-rays, and light). We demonstrate the existence of a liquid cluster phase at low clay and intermediate salt concentrations and provide new insight into the nature of the solid-like dispersions at low and high ionic strengths 
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700 1 |a Stradner, Anna  |e verfasserin  |4 aut 
700 1 |a Bhat, Suresh Kumar  |e verfasserin  |4 aut 
700 1 |a Muller, François  |e verfasserin  |4 aut 
700 1 |a Schurtenberger, Peter  |e verfasserin  |4 aut 
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