Kumar, A and Beysens, D (1996) Phase transitions at interfaces: Flocculation of charge stabilised colloids in liquid mixtures. In: Physica A: Statistical and Theoretical Physics, 224 (1-2). pp. 68-73.
Restricted to Registered users only
Download (345Kb) | Request a copy
An intriguing phenomenon of reversible flocculation of charge-stabilised colloids in liquid mixtures is described. Some recent results concerning the shape of the flocculation surface, especially near special critical points (e.g. a double critical point, DCP), are also discussed. The findings regarding the kinetics of aggregation/fragmentation have been reviewed. The theoretical efforts behind the mechanism of this phenomenon (e.g. prewetting, capillary condensation, adsoprtion-driven secondary minimum in the interparticle DLVO potential, Casimir forces, etc.) are outlined. The role of special critical points (e.g. a DCP or a quadruple critical point, QCP) in elucidating several key features of the above phenomenon is underlined. Several challenging problems in this emerging area that demand attention, are pointed out.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||30 Jun 2008|
|Last Modified:||19 Sep 2010 04:37|
Actions (login required)