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Hydrodynamic stress induced dispersion of nanoscale agglomerates by a high pressure process

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Hydrodynamic stress induced dispersion of nanoscale agglomerates by a high pressure process (Tienda española)

Robert Wengeler (Autor)

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Nanoparticle processing places a challenging task to the emerging field of nanotechnology for industrial scale applications. Especially pyrogenic synthesis, which is currently the state-of-the-art technology for inorganic nanoparticles, requires a re-dispersion and desagglomeration of nanoparticles in aqueous or non-aqueous solutions for many applications, i.e. coatings, polymer composites or cosmetics. Hydrodynamic stresses are exerted on particle bonds in high pressure dispersion processes and break nanoagglomerates. The agglomerate size decrease as well as structural changes are studied with cutting-edge methods as photon correlation spectroscopy and small angle x-ray scattering. Agglomerate breakage is related to hydrodynamic stresses, which are assessed locally using computational fluid dynamics. Thus a new insight is given into dispersion processes on the nanoscale.

ISBN-10 (Impresion) 3867271828
ISBN-13 (Impresion) 9783867271820
ISBN-13 (E-Book) 9783736921825
Idioma Inglés
Numero de paginas 184
Edicion 1
Volumen 0
Lugar de publicacion Göttingen
Lugar de la disertacion Karlsruhe
Fecha de publicacion 08.03.2007
Clasificacion simple Tesis doctoral
Area Ingeniería mecánica y de proceso