Wetting of real surfaces

✍ Scribed by Bormashenko, Edward Yu

• Publisher: Walter de Gruyter
• Year: 2013
• Tongue: English
• Leaves: 189
• Series: De Gruyter studies in mathematical physics
• Category: Library

✦ Synopsis

The problem of wetting and drop dynamics on various surfaces is very interesting from both the scientificas well as thepractical viewpoint, and subject of intense research.The results are scattered across papers in journals, sothis workwill meet the need for a unifying, comprehensive work

✦ Table of Contents

Content: Preface
Notation
1 What is surface tension?
1.1 Surface tension and its definition
1.2 Physical origin of the surface tension of liquids
1.3 Temperature dependence of the surface tension
1.4 Surfactants
1.5 The Laplace pressure
1.6 Surface tension of solids
1.7 Values of surface tensions of solids
Appendix 1A. The short-range nature of intermolecular forces
Appendix 1B. The Laplace pressure from simple reasoning
Bullets
References
2 Wetting of ideal surfaces
2.1 What is wetting? The spreading parameter
2.2 The Young equation
2.3 Wetting of flat homogeneous curved surfaces. 2.4 Line tension2.5 Disjoining pressure
2.6 Wetting of an ideal surface: influence of absorbed liquid layers and the liquid vapor
2.7 Gravity and wetting of ideal surfaces: a droplet shape and liquid puddles
2.8 The shape of the droplet and the disjoining pressure
2.9 Distortion of droplets by an electric field
2.10 Capillary rise
2.11 The shape of a droplet wetting a fiber
2.12 Wetting and adhesion. The Young-Dupre equation
2.13 Wetting transitions on ideal surfaces
2.14 How the surface tension is measured?
2.14.1 The Du Nouy ring and the Wilhelmy plate methods. 2.14.2 The pendant drop method2.14.3 Maximum bubble pressure method
2.14.4 Dynamic methods of measurement of surface tension
2.15 Measurement of surface tension of solids
Appendix 2A. Transversality conditions
Appendix 2B. Zisman plot
Bullets
References
3 Contact angle hysteresis
3.1 Contact angle hysteresis: its sources and manifestations
3.2 Contact angle hysteresis on smooth homogeneous substrates
3.3 Strongly and weakly pinning surfaces
3.4 Qualitative characterization of the pinning of the triple line. 3.5 The zero eventual contact angle of evaporated droplets and its explanation3.6 Contact angle hysteresis and line tension
3.7 More physical reasons for the contact angle hysteresis on smooth ideal surfaces
3.8 Contact angle hysteresis on chemically heterogeneous smooth surfaces: the phenomenological approach. Acquaintance with the apparent contact angle
3.9 The phenomenological approach to the hysteresis of the contact angle developed by Vedantam and Panchagnula
3.10 The macroscopic approach to the contact angle hysteresis, the model of Joanny and de Gennes. 3.10.1 Elasticity of the triple line3.10.2 Contact angle hysteresis in the case of a dilute system of defects
3.10.3 Surfaces with dense defects and the fine structure of the triple line
3.11 Deformation of the substrate as an additional source of the contact angle hysteresis
3.12 How the contact angle hysteresis can be measured
3.13 Roughness of the substrate and the contact angle hysteresis
3.14 Use of contact angles for characterization of solid surfaces
Appendix 3A. A droplet on an inclined plane
Bullets
References
4 Dynamics of wetting
4.1 The dynamic contact angle.