Introduction to Colloi dand - Surface ChemistryFourth edition

Duncan J . Shaw, BSc, PhD, FRSC

Preface

vi i

1. The colloidal state

1Introduction

1Classification of colloidal systems

3Structural characteristics

6Preparation and purification of colloidal systems

1 0

2. Kinetic properties

2 1The motion of particles in liquid media

2 1Brownian motion and translational diffusion

23The ultracentrifuge

3 1Osmotic pressure

3 7Rotary Brownian motion

4 4

3. Optical properties

4 6Optical and electron microscopy

46Light scattering

53

4. Liquid-gas and liquid-liquid interfaces

64Surface and interfacial tensions

64Adsorption and orientation at interfaces

76Association colloids-micelle formation

84Spreading

9 3Monomolecular films

9 6

5. The solid-gas interface

11 5Adsorption of gases and vapours on solids

11 5Composition and structure of solid surfaces

136

6. The solid-liquid interface

15 1Contact angles and wetting

15 1Ore flotation

161Detergency

163Adsorption from solution

169

7. Charged interfaces

174The electric double layer

174Electrokinetic phenomena

189Electrokinetic theory

199

8. Colloid stability

210Lyophobic sols

210Systems containing lyophilic material

234Stability control

241

9. Rheology

244Introduction

244Viscosity

245Non-Newtonian flow

252Viscoelasticity

256

10. Emulsions and foams

262Oil-in-water and water-in-oil emulsions

262Foams

270

Problems

277

Answers

287

References

290

Index

298