Paper Title:
Theoretical and Experimental Analyses of Colloidal Processing of Nanoparticles
  Abstract

The stability of dispersed and flocculated colloidal particles under 1 atm and applied pressure was discussed thermodynamically with the activity and chemical potential defined by Henry’s law and Raoult’s law. The calculated result under 1 atm is represented by a colloidal phase diagram as functions of surface potential and solid content of particles. Application of pressure accelerates the phase transition from dispersed to flocculated suspension. The phase transition pressure, which is observed in the applied pressure-suspension height relation during pressure filtration at a constant crosshead speed of piston, is affected by (1) particle concentration, (2) particle size, (3) surface potential, (4) degree of dissociation of polyelectrolyte dispersant and (5) applied electric field (DC and AC). The influence of above factors was discussed theoretically and experimentally.

  Info
Periodical
Edited by
Pietro VINCENZINI and Jean-François BAUMARD
Pages
131-140
DOI
10.4028/www.scientific.net/AST.62.131
Citation
Y. Hirata, K. Matsushima, S. Baba, N. Matsunaga, S. Sameshima, "Theoretical and Experimental Analyses of Colloidal Processing of Nanoparticles", Advances in Science and Technology, Vol. 62, pp. 131-140, 2010
Online since
October 2010
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