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Electrostatic interaction between charged colloid particles entrapped in a thin electrolyte film: confinement effects

Abstract.

In this paper we consider the electrostatic interaction between charged particles confined in a thin electrolyte film. We calculate the electrostatic interaction energy between two charged particles in electrolyte film for different configurations of the particles at the film surfaces. Simple asymptotic formulae are derived for the interaction between: (i) two charged particles located in the middle of the film, (ii) two charged particles adsorbed on a single film surface and (iii) two charged particles adsorbed on opposite film surfaces. The results obtained have direct application in studies of 2D colloid crystal formation in confined geometries, in thin liquid films and oil-in-water emulsions stabilised by solid particles.

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Correspondence to Vesselin. N. Paunov.

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Paunov, V.N. Electrostatic interaction between charged colloid particles entrapped in a thin electrolyte film: confinement effects. Colloid Polym Sci 281, 701–707 (2003). https://doi.org/10.1007/s00396-002-0820-y

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  • DOI: https://doi.org/10.1007/s00396-002-0820-y

Keywords

  • Electrostatic interaction
  • Image forces
  • Thin liquid films
  • Confined geometry
  • Adsorbed particles