Significant Effect of Surfactant Adsorption Layer Thickness in Equilibrium Foam Films

2020 ◽  
Vol 124 (25) ◽  
pp. 5301-5310 ◽  
Author(s):  
Mengsu Peng ◽  
Timothy T. Duignan ◽  
Anh V. Nguyen
Keyword(s):  
Layer Thickness ◽  
Adsorption Layer ◽  
Surfactant Adsorption ◽  
Foam Films

The Effect of the Surfactant Adsorption Layer on the Growth Rate of the Polyurethane Capsule Shell

2005 ◽  
Vol 38 (1) ◽  
pp. 45-48 ◽  
Author(s):  
Koji Mizuno ◽  
Yoshinari Taguchi ◽  
Masato Tanaka
Keyword(s):  
Growth Rate ◽  
Adsorption Layer ◽  
Surfactant Adsorption ◽  
Capsule Shell

Dynamics of Surfactant Adsorption from Solution Considering Aggregation within the Adsorption Layer

1998 ◽  
Vol 102 (31) ◽  
pp. 6025-6028 ◽  
Author(s):  
E. V. Aksenenko ◽  
V. B. Fainerman ◽  
R. Miller
Keyword(s):  
Adsorption Layer ◽  
Surfactant Adsorption ◽  
Adsorption From Solution

scholarly journals Ion-Specific Effects on Equilibrium Adsorption Layers of Ionic Surfactants

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Stoyan I. Karakashev
Keyword(s):  
Experimental Validation ◽  
Adsorption Layer ◽  
Liquid Films ◽  
Thin Liquid Films ◽  
Ionic Surfactant ◽  
Surfactant Adsorption ◽  
Specific Effects ◽  
Counter Ions ◽  
The Stability ◽  
Adsorption Layers

This review article reports on the effect of the counter-ions on the ionic surfactant adsorption layer and its relation to the stability of foams and emulsions. The adsorption theory of Davies about the ionic surfactant monolayer was revisited and it is shown how to account for the type of the counter-ions. The experimental validation of this theory on thin liquid films was shown as well, thus explaining the effect of Hofmeister. However their effect on foams and emulsions is more complex. Furthermore, it is shown how the counter-ions affect in complex way the stability of foams and emulsions via the surfactant adsorption layer in the light of the newest theory. To elucidate the nature of this effect further investigation is called for. 

Surface Potential Explained: A Surfactant Adsorption Model Incorporating Realistic Layer Thickness

2020 ◽  
Vol 124 (15) ◽  
pp. 3195-3205 ◽  
Author(s):  
Mengsu Peng ◽  
Timothy T. Duignan ◽  
Xiu Song Zhao ◽  
Anh V. Nguyen
Keyword(s):  
Layer Thickness ◽  
Surface Potential ◽  
Surfactant Adsorption ◽  
Adsorption Model

scholarly journals Impact of Adsorption Layer Properties on Drainage Behavior of Microscopic Foam Films: The Case of Cationic/Nonionic Surfactant Mixtures

2020 ◽  
Vol 4 (4) ◽  
pp. 53
Author(s):  
Dimi Arabadzhieva ◽  
Plamen Tchoukov ◽  
Elena Mileva
Keyword(s):  
Surface Tension ◽  
Adsorption Layer ◽  
Thin Liquid Film ◽  
Fine Tuning ◽  
Molar Ratio ◽  
Clear Correlation ◽  
Surfactant Mixtures ◽  
Foam Films ◽  
Foam Film ◽  
Surfactant Systems

Aqueous mixtures of cationic hexadecyltrimethylammonium chloride (CTAC) and nonionic pentaethyleneglycol monododecyl ether (C12E5) are investigated. Adsorption layer properties are systematically studied within a wide concentration range for a 1:1 molar ratio of the surfactants. Surface tension and dilatational rheology measurements are conducted by profile analysis tensiometry. The interfacial data are juxtaposed to drainage kinetics and stability results for microscopic foam films, investigated by microinterferometric thin liquid film instrumentation. The obtained results give experimental evidence of synergistic interactions in the studied solutions, as compared to the corresponding single surfactant systems. Specific runs of dynamic and equilibrium surface tension curves are registered against the total surfactant quantity; the surface dilatational elasticities for the mixtures are systematically higher. A clear correlation is established between adsorption layer performance and foam film characteristics. The maxima of the film lifetimes are well outlined, and the respective values are shifted towards lower overall concentrations. The reported results substantiate the key role of the adsorption layers, and the surface dilatational properties in particular, for foam film drainage kinetics and stability. The well-expressed synergy observed in adsorption layer and foam film properties suggests the substantial benefits of using mixed surfactant systems in the design and fine-tuning of foam systems for innovative applications.

Influence of particle curvature on polymer adsorption layer thickness

Langmuir ◽  
1989 ◽  
Vol 5 (2) ◽  
pp. 339-342 ◽  
Author(s):  
James A. Baker ◽  
Richard A. Pearson ◽  
John C. Berg
Keyword(s):  
Layer Thickness ◽  
Adsorption Layer ◽  
Polymer Adsorption
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