Regensburg 2013 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

CPP: Fachverband Chemische Physik und Polymerphysik

CPP 20: Poster: Colloids and Complex Liquids

CPP 20.29: Poster

Dienstag, 12. März 2013, 18:15–20:15, Poster C

Phase separation patterns in colloidal suspensions of anisotropic pigment particles — •Kathrin May, Alexey Eremin, and Ralf Stannarius — Institute of Experimental Physics, Faculty for Natural Science, Otto von Guericke University Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany

The physics of colloidal suspensions of anisotropic particles has been a topic of research since almost a decade now. Such suspensions show a variety of unique properties depending on the particle concentration and on external fields. Here, we report the relaxation of electric-field-induced inhomogeneities in particle concentration. The occurring patterns can be static or dynamic. For our experiments, we use electro-responsive suspensions of pigment particles 'Novoperm Carmine HF3C' (Clariant) with an aspect ratio of about 1:5 in a nonpolar solvent.