Interaction Forces in Thin Liquid Films Stabilized by Hydrophobically Modified Inulin Polymeric Surfactant. 3. Influence of Electrolyte Type on Emulsion Films

Langmuir ◽  
2007 ◽  
Vol 23 (11) ◽  
pp. 6091-6094 ◽  
Author(s):  
G. Gotchev ◽  
T. Kolarov ◽  
B. Levecke ◽  
Th. Tadros ◽  
Khr. Khristov ◽  
...  
Keyword(s):  
Liquid Films ◽  
Thin Liquid Films ◽  
Polymeric Surfactant ◽  
Interaction Forces ◽  
Hydrophobically Modified ◽  
Emulsion Films

Interaction Forces in Thin Liquid Films Stabilized by Hydrophobically Modified Inulin Polymeric Surfactant. 2. Emulsion Films

Langmuir ◽  
2007 ◽  
Vol 23 (4) ◽  
pp. 1711-1715 ◽  
Author(s):  
D. Exerowa ◽  
G. Gotchev ◽  
T. Kolarov ◽  
Khr. Khristov ◽  
B. Levecke ◽  
...  
Keyword(s):  
Liquid Films ◽  
Thin Liquid Films ◽  
Polymeric Surfactant ◽  
Interaction Forces ◽  
Hydrophobically Modified ◽  
Emulsion Films

Interaction Forces in Thin Liquid Films Stabilized by Hydrophobically Modified Inulin Polymeric Surfactant. 1. Foam Films

Langmuir ◽  
2006 ◽  
Vol 22 (11) ◽  
pp. 5013-5017 ◽  
Author(s):  
D. Exerowa ◽  
T. Kolarov ◽  
I. Pigov ◽  
B. Levecke ◽  
Tharwat Tadros
Keyword(s):  
Liquid Films ◽  
Thin Liquid Films ◽  
Polymeric Surfactant ◽  
Interaction Forces ◽  
Foam Films ◽  
Hydrophobically Modified

Thin liquid films

Surfactants ◽  
2019 ◽  
pp. 314-336
Author(s):  
Bob Aveyard
Keyword(s):  
Surface Concentration ◽  
Liquid Films ◽  
Thin Liquid Films ◽  
Concentration Gradients ◽  
Film Rupture ◽  
Film Stability ◽  
Film Drainage ◽  
Repulsive Forces ◽  
Emulsion Films ◽  
Thinning Rate

The study of soap films, which are symmetrical, has a distinguished history. More recently, other asymmetric liquid films (e.g. pseudo-emulsion films and wetting films on solids) have been widely investigated. The (meta)stability of thin liquid films can be understood in terms of disjoining pressure isotherms, the shapes of which reflect the nature of the films. Film stability in systems with only fluids present can also be considered in terms of both classical and generalized entry coefficients, defined in terms of the various interfacial tensions in the system. Film rupture obviously occurs as a result of dynamic processes. Film drainage (thinning) rate is influenced by surface concentration gradients in the surfactant layers at film surfaces and by the effects of Marangoni flow within the films. To be stable, films need to have elastic properties in order to withstand mechanical perturbations. If the repulsive forces between surfaces become insufficient, hole formation will lead to film rupture.

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