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Van der Waals interactions in three-phase emulsions

  • Kayrod Madani
  • Stig Friberg
Stark Strukturierte Systeme
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 65)

Abstract

the stability of three-phase emulsions has been treated and the difference between the case of three liquids and two liquids and a liquid crystalline phase has been pointed out.

For the well known three liquid emulsions which remain close to the HLB-temperature the extremely low interfacial tensions is a main factor for the instability. The enhanced interfacial free energy at an undulated thein film is insufficient to counteract the enhanced Van der Waals potential.

The specific influence of a layered structure on the Van der Waals attraction potential was demonstrated by a comparison between potentials from a manylayered structure and from a mono-layered structure with average properties. The many-layered structure causes a far more pronounced reduction of the Van der Waals forces at the onset of coalescence than the mono-layered structure.

Keywords

Emulsion Droplet Liquid Crystalline Phase Interfacial Free Energy Hamaker Constant Glycol Ether 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1978

Authors and Affiliations

  • Kayrod Madani
    • 1
  • Stig Friberg
    • 1
  1. 1.Chemistry Department, UMRRollaU.S.A.

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