Colloid Stability: The Role of Surface Forces, Vol. 2 Book

Preface.

List of Contributors.

1 Wetting of Surfaces and Interfaces: a Conceptual Equilibrium Thermodynamic Approach (Jarl B. Rosenholm).

1.1 Introduction.

1.2 Thermodynamic Reference Parameters.

1.3 Wetting in Idealized Binary Systems.

1.3.1 Models for Dispersive Solid–Liquid Interactions.

1.3.2 Contribution from the Surface Pressure of (Gaseous) Molecules and Spreading of Liquid Films.

1.3.3 Models for Specific Polar (Lewis) Interactions.

1.3.4 Partial Acid and Base Components.

1.4 Wetting in Idealized Ternary Systems.

1.4.1 Preferential Spreading at Three-component Interfaces.

1.4.2 Models for Dispersive Solid–Liquid–Liquid Interaction.

1.4.3 Contribution from the Surface Pressure of a Monomolecular (Gaseous) Film.

1.4.4 Models for Lewis (Polar) Solid–Liquid–Liquid Interaction.

1.5 Adsorption from Solution.

1.5.1 Determination of Lewis (Polar) Interactions with Surface Sites.

1.5.2 Determination of Brønsted (Charge) Interactions with Surface Sites.

1.5.3 Adsorption Isotherms for Competitive Interaction at Surface Sites.

1.6 Contributions from Surface Heterogeneities.

1.6.1 Non-ideal Solid–Liquid Brønsted (Charge) Interactions.

1.6.2 Surface Energy of Coexisting Crystal Planes.

1.6.3 Competing Multi-site Adsorption.

1.6.4 Structural Heterogeneities of the Surface.

1.7 Contributions from External Stimuli.

1.7.1 External Electrostatic Potential.

1.7.2 External Illumination.

1.8 Conclusions.

References.

2 Surface Forces and Wetting Phenomena (Victor M. Starov).

2.1 Wetting and Neumann-Young’s Equation.

2.2 When is the Neumann-Young Equation Valid?

2.3 Hysteresis of Contact Angle.

2.3.1 Line Tension.

2.4 Surface Forces.

2.5 Components of the Disjoining Pressure.

2.5.1 Molecular or Dispersion Component.

2.5.2 Double Electrical Layers.

2.5.3 Electrostatic Component of the Disjoining Pressure.

2.5.4 Structural Component of the Disjoining Pressure.

2.6 Thin Liquid Films.

2.7 Disjoining Pressure and Equilibrium Contact Angles.

2.8 Hysteresis of Contact Angles from a Microscopic Point of View: Surface Forces.

References.

3 Investigation of Plateau Border Profile Shape with Flow of Surfactant Solution Through Foam Under Constant Pressure Drop Using the FPDT Method (Pyotr M. Kruglyakov and Natalia G. Vilkova).

3.1 Theoretical Background.

3.1.1 Foam Drainage.

3.1.2 Foam Pressure Drop Technique.

3.1.3 Hydroconductivity.

3.2 Experimental Investigation of the Liquid Flow Through the Foam.

3.3 Results and Discussion.

3.3.1 Liquid Flow Through the Foam with Constant Plateau Border Radius.

3.3.2 Comparison of Experimental Plateau Border Profile with that Calculated on the Assumption of a Mobile Border.

3.3.3 Influence of Surface Tension Decrease on the Plateau Border Profile.

3.3.4 Comparison of the Experimental and Calculated Volume Flow-rates.

3.4 Foam Drainage Investigations Using the Pressure Established When Pressure Drop Is Created in the Liquid Phase of Foam.

3.5 Conclusions.

References.

4 Physical Chemistry of Wetting Phenomena (Nicolay V. Churaev and Vladimir D. Sobolev).

4.1 The State of the Theory of Wetting.

4.2 Non-polar Liquids.

4.3 Low Energetic Surfaces.

4.4 High-energy Surfaces.

4.5 Polar Liquids.

4.6 Hydrophobic Surfaces.

4.7 Hydrophilic Surfaces.

4.8 Methods of Control of Surface Wetting.

References.

5 The Intrinsic Charge at the Hydrophobe/Water Interface (James K. Beattie).

5.1 Introduction.

5.2 Oil Droplets.

5.3 Gas Bubbles.

5.4 Thin Films.

5.5 Solid Hydrophobic Surfaces.

5.6 Self-assembled Monolayers.

5.7 Surface Tension.

5.8 Theory.

5.9 The Autolysis Hypothesis.

5.10 Excluded Explanations.

5.11 Conclusions and Outstanding Questions.

References.

6 Surface Forces in Wetting Phenomena in Fluid Systems (Hiroki Matsubara and Makoto Aratono).

6.1 Overview of Wetting Transition of Alkanes on a Water Surface.

6.2 Transition from Partial to Pseudo-partial Wetting Induced by Surfactant Adsorption at the Air–Water Interface.

6.3 Generality of Surfactant-induced Wetting Transition and Theoretical Prediction of the Wetting Transition Using a 2D Lattice Model.

6.4 Line-tension Behavior Near the Transition from Partial to Pseudo-partial Wetting.

6.5 Conclusion.

References.

7 Aggregation of Microgel Particles (Brian Vincent and Brian Saunders).

7.1 Introduction to Microgel Particles.

7.2 Stability and Aggregation of Microgel Particles: Theoretical Background.

7.2.1 Interparticle Forces.

7.2.2 Criteria for Dispersion Stability.

7.3 Experimental Studies of Microgel Aggregation.

7.3.1 Temperature- and Electrolyte-induced Homoaggregation.

7.3.2 Depletion-induced Aggregation.

7.3.3 Heteroaggregation.

References.

8 Progress in Structural Transformation in Lyotropic Liquid Crystals (Idit Amar-Yuli and Nissim Garti).

8.1 Introduction.

8.2 Liquid Crystal Mesophases.

8.2.1 Lamellar Mesophases.

8.2.2 Hexagonal Mesophases (HI, HII).

8.2.3 Cubic Mesophases.

8.3 Mesophase Transformations.

8.3.1 Correlation Between Molecular Structure and Phase Behavior.

8.3.2 The Tail Volume and/or Length (Binary System).

8.3.3 The Area per Head Group (Binary System).

8.3.4 Guest Molecule Effect (Ternary System).

8.3.4.1 Hydrophilic Guest Molecule.

8.3.4.2 Lipophilic Guest Molecule.

8.3.5 Co-surfactant.

8.4 Microstructure and Transformation Identification Techniques.

8.4.1 Optical Microscopy.

8.4.2 X-ray Diffraction.

8.4.3 Differential Scanning Calorimetry (DSC).

8.4.4 Infrared (IR) Spectroscopy.

8.4.5 Nuclear Magnetic Resonance (NMR) Spectroscopy.

8.4.6 Rheology.

8.5 Conclusions.

References.

9 Particle Deposition as a Tool for Studying Hetero-interactions (Zbigniew Adamczyk, Katarzyna Jaszczó³t, Aneta Michna, Maria Zembala, and Jakub Barbasz).

Abstract.

9.1 Introduction.

9.2 Specific Interactions.

9.2.1 Electrostatic Interactions.

9.2.2 Van der Waals Interactions.

9.2.3 Interactions in Dispersing Media, Hamaker Constant Calculations.

9.2.4 Superposition of Interactions and the Energy Profiles.

9.3 Phenomenological Transport Equations.

9.3.1 Near-surface Transport.

9.3.2 Limiting Solutions for the Perfect Sink Model.

9.3.3 Convective-diffusion Transport to Various Interfaces.

9.4 Illustrative Experimental Results.

9.4.1 Initial Deposition Rates.

9.4.2 Particle Deposition on Heterogeneous Surfaces.

9.5 Conclusions.

References.

10 Recent Developments in Dilational Viscoelasticity of Surfactant Layers (Libero Liggieri, Michele Ferrari, and Francesca Ravera).

10.1 Introduction.

10.2 Surface Rheology of Surfactant Layers.

10.2.1 Adsorption Kinetics and Interfacial Rheology.

10.2.2 Main Surface Dilational Rheology Concepts.

10.3 Dilational Rheology with Multiple Relaxation Processes.

10.3.1 General Approach.

10.3.2 Adsorbed Layers with Variable Average Molar Area.

10.3.3 Interfacial Phase Transition with Aggregation.

10.3.4 Insoluble Surfactant Layers.

10.3.5 Interfacial Reactions in Insoluble Monolayers.

10.4 Conclusions and Perspectives.

References.

11 Rapid Brownian and Gravitational Coagulation (Andrei S. Dukhin and Stanislav S. Dukhin).

11.1 Introduction.

11.2 Population Balance Equations.

11.3 Smoluchowski Solution for Brownian Coagulation.

11.4 Collision Frequency for Gravitational Aggregation.

11.4.1 Collision Frequency Derived from First Principles.

11.4.2 Collision Frequency Assumed from Mathematical Reasoning.

11.4.3 Collision Frequency for Simultaneous Brownian and Gravitational Coagulation.

11.5 Transition from Brownian to Gravitational Aggregation – Analytical Solution.

11.5.1 Analytical Solution by Dukhin.

11.5.2 Analytical Solution by Jung et al.

11.5.3 Comparison of Analytical Solutions and Following Conclusions.

11.6 Transition from Brownian to Gravitational Aggregation – Numerical Solution.

11.7 Experimental Data.

11.8 Conclusion.

List of Symbols.

References.

Subject Index.