Narayanan, T and Kumar, A and Gopal, ESR and Beysens, D and Guenoun, P and Zalczer, G (1993) Reversible Flocculation of Silica Colloids in Liquid Mixtures. In: Physical Review E, 48 (3). pp. 1989-1984.
Restricted to Registered users only
Download (964Kb) | Request a copy
We report some observations concerning the reversible flocculation of silica colloids in reentrant liquid mixtures of 3-methylpyridine plus water plus heavy water and 2, 6-lutidine plus water. The research involved a detailed determination of the line of flocculation temperatures for phase-separating as well as non-phase-separating mixtures. The authors find that the flocculation temperature is more influenced by the impurities in the suspension rather than the concentration and size of the spheres. For a fixed volume fraction and diameter of the colloids, they notice a close similarity between the dome of flocculation temperatures and the bulk-coexistence surface but with different amplitudes and exponents in each case.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to The American Physical Society.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||29 Jun 2006|
|Last Modified:||04 Jan 2013 06:56|
Actions (login required)