Regensburg 2013 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 34: Poster: Wetting, Micro and Nano Fluidics
CPP 34.14: Poster
Mittwoch, 13. März 2013, 16:30–18:30, Poster C
Fouling layer removal investigations under cross-flow conditions — •Gerd Herzog1,2, Adeline Buffet1, Matthias Schwartzkopf1, Gunthard Benecke1,3, Frans J. de Jong4, Volker Körstgens5, Kuhu Sarkar5, Peter Müller-Buschbaum5, Wilfried Wurth2, and Stephan V. Roth1 — 1HASYLAB at DESY, Notkestr. 85, D-22607 Hamburg — 2Universität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, D-22761 Hamburg — 3MPI of Colloids and Interfaces, Department of Biomaterials, Am Mühlenberg 1, D-14476 Potsdam-Golm — 4TU Hamburg-Harburg, Institut für Mehrphasenströmungen (V-5), Eißendorfer Straße 38, 21073 Hamburg — 5TU München, Physik-Department E13, James-Franck-Str. 1, 85748 Garching
The process of scaling and fouling under cross-flow conditions as well as the removal of deposit layers is important for many technical applications like membranes, heat exchangers and ship hull coatings.
We used grazing incidence small-angle X-ray scattering (GISAXS) and a microfluidic cell for an in-situ investigation of the removal of an annealed polystyrene colloid layer on a glass substrate under a flow of deionized water. The sample was scanned several times in horizontal direction and the obtained data show the continuous transition from a polymer-covered to a pure glass substrate.