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Autor: Richard Pashley
ISBN-13: 9780470868843
Einband: E-Book
Seiten: 200
Sprache: Englisch
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eBook Format: E-Book
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Applied Colloid and Surface Chemistry

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Applied Colloid and Surface Chemistry is a broadintroduction to this interdisciplinary field. Taking a genuinelyapplied approach, with applications drawn from a wide range ofindustries, this book will meet the demands of the student andprofessional currently working in the field.
The text includes keynote sections written by practicingindustrial research scientists, bringing to the reader a wealth ofreal industrial examples. These examples range from water treatmentthrough to soil management as well as examples taken from thecoatings and photographic industries. To aid accessibility, some ofthe more demanding mathematical derivations are separated from themain text, enabling them to be avoided as required.

With carefully structured chapters, starting with learningobjectives, and containing tutorial questions with answers andexplanatory notes, this text is invaluable for undergraduatestaking a first course on colloid and surface chemistry. This bookwill also be suitable to postgraduates and professionals, who needan up-to-date account of the subject.
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Preface.

1 Introduction.

Introduction to the nature of colloidal solutions.

The forces involved in colloidal stability.

Types of colloidal systems.

The link between colloids and surfaces.

Wetting properties and their industrial importance.

Recommended resource books.

Appendices.

2 Surface Tension and Wetting.

The equivalence of the force and energy description of surfacetension and surface energy.

Derivation of the Laplace pressure equation.

Methods for determining the surface tension of liquids.

Capillary rise and the free energy analysis.

The Kelvin equation.

The surface energy and cohesion of solids.

The contact angle.

Industrial Report: Photographic-quality printing.

Sample problems.

Experiment 2.1: Rod in free surface (RIFS) method for themeasurement of the surface tension of liquids.

Experiment 2.2: Contact angle measurements.

3 Thermodynamics of Adsorption.

Basic surface thermodynamics.

Derivation of the Gibbs adsorption isotherm.

Determination of surfactant adsorption densities.

Industrial Report: Soil microstructure, permeability andinterparticle forces.

Sample problems.

Experiment 3.1: Adsorption of acetic acid on to activatedcharcoal.

4 Surfactants and Self-assembly.

Introduction to surfactants.

Common properties of surfactant solutions.

Thermodynamics of surfactant self-assembly.

Self-assembled surfactant structures.

Surfactants and detergency.

Industrial Report: Colloid science in detergency.

Sample problems.

Experiment 4.1: Determination of micelle ionization.

5 Emulsions and Microemulsions.

The conditions required to form emulsions andmicroemulsions.

Emulsion polymerization and the production of latex paints.

Photographic emulsions.

Emulsions in food science.

Industrial Report: Colloid science in foods.

Experiment 5.1: Determination of the phase behaviour ofmicroemulsions.

Experiment 5.2: Determination of the phase behaviour ofconcentrated surfactant solutions.

6 Charged Colloids.

The formation of charged colloids in water.

The theory of the diffuse electrical double-layer.

The Debye length.

The surface charge density.

The zeta potential.

The Hückel equation.

The Smoluchowski equation.

Corrections to the Smoluchowski equation.

The zeta potential and flocculation.

The interaction between double-layers.

The Derjaguin approximation.

Industrial Report: The use of emulsions in coatings.

Sample problems.

Experiment 6.1: Zeta potential measurements at the silica/waterinterface.

7 Van der Waals forces and Colloid Stability.

Historical development of van der Waals forces and theLennard-Jones potential.

Dispersion forces.

Retarded forces.

Van der Waals forces between macroscopic bodies.

Theory of the Hamaker constant.

Use of Hamaker constants.

The DLVO theory of colloid stability.

Flocculation.

Some notes on van der Waals forces.

Industrial Report: Surface chemistry in water treatment.

Sample problems.

8 Bubble Coalescence, Foams and Thin Surfactant Films.

Thin-liquid-film stability and the effects of surfactants.

Thin-film elasticity.

Repulsive forces in thin liquid films.

Froth flotation.

The Langmuir trough.

Langmuir-Blodgett films.

Experiment 8.1: Flotation of powdered silica.

Appendices.

1 Useful Information.

2 Mathematical Notes on the Poisson-BoltzmannEquation.

3 Notes on Three-dimensional Differential Calculus and theFundamental Equations of Electrostatics.

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Autor: Richard Pashley
ISBN-13 :: 9780470868843
ISBN: 0470868848
Verlag: John Wiley & Sons
Seiten: 200
Sprache: Englisch
Auflage 1. Auflage
Sonstiges: Ebook