Heterocoagulation II. Interaction energy of two unequal spheres

The problem of interactions of unequal spheres of any surface potential at close distance is analyzed in terms of the Poisson—Boltzmann equation in its two-dimensional form. The electrical double-layer interaction energy is obtained and compared to that of Hogg et al. [Hogg, R., Healy, T. W., and Fu...

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Published inJournal of colloid and interface science Vol. 67; no. 1; pp. 1 - 9
Main Authors Barouch, Eytan, Matijević, Egon, Ring, Terry A, Finlan, J.Michael
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.10.1978
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Summary:The problem of interactions of unequal spheres of any surface potential at close distance is analyzed in terms of the Poisson—Boltzmann equation in its two-dimensional form. The electrical double-layer interaction energy is obtained and compared to that of Hogg et al. [Hogg, R., Healy, T. W., and Fuerstenau, D. W., Trans. Faraday Soc. 62, 1638 (1966)]. These two energy functions are of similar shape when plotted against the separation distance. However, the values calculated by the methods derived in this work are consistently higher, differing by nearly an order of magnitude at close separations.
ISSN:0021-9797
1095-7103
DOI:10.1016/0021-9797(78)90208-4