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Colloidal particles in thin liquid films
Citation key zeng15a
Author Zeng, Y. and Schoen, S. and Carl, A. and von Klitzing, R.
Title of Book Colloidal Process Engineering
Pages 3-19
Year 2015
ISBN 978-3-319-15128-1
DOI 10.1007/978-3-319-15129-8_1
Editor M. Kind
Publisher Springer
Abstract This chapter deals with the structuring of Silica nanoparticles in thin liquid films. In the first part of the chapter the particles are kept hydrophilic and their ordering under geometrical confinement in a thin liquid film is described. The thin film is formed between two solid surfaces in Colloidal Probe AFM. The effect of suspension parameters (particle concentration, particle size and salt concentration) and parameters of the outer surfaces (surface potential, roughness and elasticity) on the ordering are studied. In the second part of the chapter the same particles are hydrophobized with short chain amphiphiles. The partially hydrophobic nanoparticles are used to stabilize thin foam films in a Pickering foam. A multiscale approach from bulk solution via macroscopic foams, foam bubbles to the adsorption at the free water/air interface is presented in order to understand the stabilisation of Pickering foams.
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