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Preface<br> GENERAL INTRODUCTION<br> INTERPARTICLE INTERACTIONS AND THEIR COMBINATION<br> Hard-Sphere Interaction<br> ?Soft? or Electrostatic Interaction<br> Steric Interaction<br> van der Waals Attractions<br> Combination of Interaction Forces<br> Flocculation of Dispersions, and Its Prevention<br> Distinction between ?Dilute?, ?Concentrated?, and ?Solid? Dispersions<br> States of Suspension on Standing<br> States of the Emulsion on Standing<br> PRINCIPLES OF STEADY-STATE MEASUREMENTS<br> Strain Rate of Shear Rate<br> Types of Rheological Behavior in Simple Shear<br> Time Effects During Flow: Thixotropy and Negative (or Anti-) Thixotropy<br> Rheopexy<br> Turbulent Flow<br> Effect of Temperature<br> Measurement of Viscosity as a Function of Shear Rate: The Steady-State Regime<br> Non-Newtonians<br> Major Precautions with Concentric Cylinder Viscometers<br> PRINCIPLES OF VISCOELASTIC BEHAVIOR<br> Introduction<br> The Deborah Number<br> Strain Relaxation after the Sudden Application of Stress (Creep)<br> Analysis of Creep Crves<br> The Berger Model (Maxwell + Kelvin)<br> Creep Procedure<br> Stress Relaxation after Sudden Application of Strain<br> Dynamic (Oscillatory) Techniques<br> RHEOLOGY OF SUSPENSIONS<br> Introduction<br> The Einstein Equation<br> The Bachelor Equation<br> Rheology of Concentrated Suspensions<br> Rheology of Hard-Sphere Suspensions<br> Rheology of Systems with ?Soft? or Electrostatic Interaction<br> Rheology of Sterically Stabilized Dispersions<br> Rheology of Flocculated Suspensions<br> Models for the Interpretation of Rheological Results<br> RHEOLOGY OF EMULSIONS<br> Introduction<br> Interfacial Rheology<br> Bulk Rheology of Emulsions<br> RHEOLOGY MODIFIERS, THICKENERS, AND GELS<br> Introduction<br> Classification of Thickeners and Gels<br> Definition of a ?Gel?<br> Rheological Behavior of a ?Gel?<br> Classification of Gels<br> Rheology Modifiers Based on Surfactant Systems<br> USE OF RHEOLOGICAL MEASUREMENTS FOR ASSESSMENT AND PREDICTION OF THE LONG-TERM PHYSICAL STABILITY OF FORMULATIONS (CREAMING AND SEDIMENTATION)<br> Introduction<br> Sedimentation of Suspensions<br> Assessment and Prediction of Flocculation Using Rheological Techniques<br> Assessment and Prediction of Emulsion Coalescence Using Rheological Techniques

<p>"In summary, the book <i>Rheology of Dispersions</i> by Tharwat Tadros can be highly recommended for practically oriented researchers working in the field of dispersions." (<i>Materials Views</i>, 16 January 2012)</p>

Tharwat F. Tadros was appointed lecturer in Physical Chemsitry (1962-1966) at Alexandria University. Between 1966 and 1969, he spent a sabbatical at the Agricultural University of Wageningen and T.N.O. in Delft, The Netherlands. Thereafter he joined I.C.I. and ZENECA until 1994, where he researched various fields of surfactants, emulsions, suspensions, microemulsions, wetting spreading & adhesion and rheology. During that period he was also appointed visiting professor at Imperial College London, Bristol University and Reading University. In 1992, he was elected President of the International Association of Colloid and Interface Science. Since leaving ZENECA, Tharwat F. Tadros has worked as a consultant for various industries and also given several courses in his specialized field. He is the recipient of two medals from the Royal Society of Chemistry in the UK, and has more than 250 scientific papers to his name.

A dispersion is a system of unmixable phases in which one phase is continuous and at least one is finely distributed. Examples are found in many industrial applications, including emulsions, suspensions, foams, and geld. The control of their flow characteristics - rheology - is essential in their preparation, long-term physical stability and application.<br> Filling the need for a practical, up-to-date book connecting the stability/instability of the dispersion to its rheological behavior, this title aids in understanding the principles of rheology and the techniques that can be applied.<br> <br> From the contents:<br> * General Introduction<br> * Interparticle Interactions and Their Combination<br> * Principles of Viscoelastic Behavior<br> * Rheology of Suspensions<br> * Rheology of Emulsions<br> * Rheology of Modifiers, Thickeners, and Gels<br> * Use of Rheological Measurements for Assessment and Prediction of the Long-Term Physical Stability of Formulations (Creaming and Sedimentation)<br>

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