Interfacial phenomena and colloid stability. Volume 1 : basic principles

✍ Scribed by Tadros, Tharwat F

• Publisher: De Gruyter
• Year: 2015
• Tongue: English
• Leaves: 358
• Series: Interfacial Phenomena and Colloid Stability
• Category: Library

✦ Synopsis

Interfacial Phenomena and Colloid Stability deals with the fundamental aspects of interfacial phenomena, which form the basis of applications of interface and colloid science to various disperse systems. These include suspensions, emulsions, nano-dispersions, wetting, spreading, deposition and adhesion of particles to surfaces. This book is valuable for research scientists and PhDs. investigating various aspects of interface and colloid science. Read more...

Abstract: Interfacial Phenomena and Colloid Stability deals with the fundamental aspects of interfacial phenomena, which form the basis of applications of interface and colloid science to various disperse systems. These include suspensions, emulsions, nano-dispersions, wetting, spreading, deposition and adhesion of particles to surfaces. This book is valuable for research scientists and PhDs. investigating various aspects of interface and colloid science

✦ Table of Contents

Content: Preface
Contents
1. General introduction
1.1 Definition of the interfacial region and interfacial tension
1.2 Role of interfacial phenomena
1.3 Outline of the book
2. Origin of charge at interfaces: Structure of the electrical double layer
2.1 Origin of charge on surfaces
2.1.1 Surface ions
2.1.2 Ionization of surface groups
2.1.3 Isomorphic substitution
2.1.4 Specific adsorption of ions
2.2 Structure of the electrical double layer
2.2.1 Diffuse double layer (Gouy and Chapman)
2.2.2 Stern-Grahame model of the double layer
2.2.3 Capacitance of the double layer 2.2.4 Double layer investigation3. Electrokinetic phenomena and zeta potential
3.1 Stern-Grahame model of the double layer
3.1.1 Calculation of zeta potential from particle mobility
3.1.2 Measurement of electrophoretic mobility and zeta potential
4. Van der Waals attraction
4.1 Introduction
4.2 Intermolecular attraction between atoms or molecules
4.2.1 Dipole-dipole interaction (Keesom-van der Waals interaction)
4.2.2 Dipole-induced dipole interaction (Debye-van der Waals Interaction)
4.2.3 London-van der Waals interaction (dispersion interaction) 4.2.4 General approach for the van der Waals attraction4.2.5 Hydrogen bonding
4.2.6 Hydrophobic (bonding) interaction
4.2.7 Van der Waals attraction of macroscopic bodies
4.2.8 Medium effect on van der Waals attraction
4.2.9 Retardation effect
4.2.10 Direct measurement of van de Waals attraction between macroscopic bodies
5. Double layer repulsion
5.1 Introduction
5.2 Interaction between similar and dissimilar flat plates
5.3 Calculation of electrostatic interaction using the Gibbs energy concept
5.4 Charge and potential distribution
5.5 Interaction between spherical particles 5.6 Effect of increasing electrolyte concentration, valency of counterions and Stern potential5.7 Effect of particle concentration
6. Combination of double layer repulsion and van der Waals attraction theory of colloid stability
6.1 Introduction
6.2 Stability of charge stabilized systems. Theory of colloid stability of hydrophobic colloids: Deryaguin-Landau-Verwey-Overbeek (DLVO) theory
6.3 Mechanism of aggregation
6.4 Kinetics of flocculation of dispersions
6.4.1 Diffusion limited aggregation (fast flocculation kinetics)
6.4.2 Potential limited aggregation (slow flocculation kinetics) 6.4.3 Weak (reversible) flocculation6.4.4 Orthokinetic flocculation
6.4.5 Aggregate structure
6.5 Influence of particle number concentration
6.6 States of suspension on standing
6.7 Sedimentation of suspensions and its prevention
6.7.1 Sedimentation rate of suspensions
6.7.2 Prevention of sedimentation and formation of dilatant sediments
7. The liquid/liquid interface and surfactant adsorption
7.1 Introduction
7.2 Surfactant adsorption
7.2.1 The Gibbs adsorption isotherm
7.2.2 Equation of state approach
7.2.3 The Langmuir, Szyszkowski and Frumkin equations