Vergleichende Messungen des Zeta-Potentials von Faserstoffen durch Elektroosmose und Strömungsstrom/Strömungspotential |
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| Authors: | Hans-Jörg Jacobasch Günther Bauböck Josef Schurz |
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| Institution: | (1) Institut für Technologie der Polymere, Akademie der Wissenschaften der DDR, Dresden, Deutsche Demokratische Republik;(2) Institut für Physikalische Chemie, Universität Graz, A-8010 Graz, Österreich |
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| Abstract: | An apparatus for the determination of zetapotential is described, which allows measurement of both streaming potential and streaming current as well as electroosmosis with one and the same fiber diaphragm with various electrodes (calomel, Ag/AgCl, palladium). Measurements with glass fibers, fibers of polyacrylonitrile and of polyester, and with cellulose pulp show that identical values for the electrokinetic parameters are obtained independent of voltage applied during electroosmosis resp. pressure difference during streaming measurements. This allows the conclusion that the zetapotential in dilute electrolyte solution is here an unequivocally determinable figure.Herrn Prof. Dr.R. C. Schulz mit den herzlichsten Glückwünschen zum 65. Geburtstag gewidmet. |
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| Keywords: | Zetapotential Streaming potential Streaming current Electroosmosis Fibers |
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