Strong and weak interactions of colloidal particles with high surface potentials

Citation
Gx. Lou et al., Strong and weak interactions of colloidal particles with high surface potentials, J COLL I SC, 241(1), 2001, pp. 81-88
Citations number
16
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN journal
00219797 → ACNP
Volume
241
Issue
1
Year of publication
2001
Pages
81 - 88
Database
ISI
SICI code
0021-9797(20010901)241:1<81:SAWIOC>2.0.ZU;2-4
Abstract
A simple method for calculating the interaction force and energy per unit a rea between two dissimilar plates with high potentials at constant surface potential presented. Using Derjaguin's method and the improved Derjaguin' m ethod, the expressions of the interaction free energy between two dissimila r spheres with high surface potentials are derived. These formulae may be d ivided into two groups: those for the strong interaction and those for the weak interaction. The juncture of strong and weak interactions is at kappah = 4 for dissimilar plates and at kappah = 2.8 for spheres The relative err or is largest at this point, about 10%. (C) 2001 Academic Press.