TY - GEN
T1 - Adsorption of surfactants on polymer surfaces investigated with a novel zeta-potential measurement system
AU - Reischl, Martin
AU - Stana Kleinschek, Karin
AU - Ribitsch, Volker
PY - 2006/12/1
Y1 - 2006/12/1
N2 - The determination of electrokinetic properties such as the zeta-potential of polymer samples with classical methods is laborious and time-consuming. For this reasons, a reliable, fast, and easy to use measurement system based on streaming potential measurement was developed. In this novel measurement system, streaming potential is created by an oscillating flow of a small amount of electrolyte solution through the sample media. In addition, this setup allows direct titration and therefore time-resolved monitoring of changes in zeta-potential in a seconds time-scale. With this instrument, the concentration- as well as the time-dependent adsorption behaviour of various non-ionic, anionic and cationic surfactants on a novel, regenerated cellulosic polymer was investigated. This new cellulose-based, fibrous textile polymer is permanently cationised, not only at the surface but throughout the whole fibre. The results show that even very low concentrations of surfactant, due to its charge and chemical composition, highly influence the surface charge of the polymer in a large range. Furthermore, the results for this new textile material are compared with other textile fibres, e. g. wool.
AB - The determination of electrokinetic properties such as the zeta-potential of polymer samples with classical methods is laborious and time-consuming. For this reasons, a reliable, fast, and easy to use measurement system based on streaming potential measurement was developed. In this novel measurement system, streaming potential is created by an oscillating flow of a small amount of electrolyte solution through the sample media. In addition, this setup allows direct titration and therefore time-resolved monitoring of changes in zeta-potential in a seconds time-scale. With this instrument, the concentration- as well as the time-dependent adsorption behaviour of various non-ionic, anionic and cationic surfactants on a novel, regenerated cellulosic polymer was investigated. This new cellulose-based, fibrous textile polymer is permanently cationised, not only at the surface but throughout the whole fibre. The results show that even very low concentrations of surfactant, due to its charge and chemical composition, highly influence the surface charge of the polymer in a large range. Furthermore, the results for this new textile material are compared with other textile fibres, e. g. wool.
KW - Cellulosic fibre
KW - Polymer surface
KW - Surfactant adsorption
KW - Zeta potential
UR - http://www.scopus.com/inward/record.url?scp=33847072790&partnerID=8YFLogxK
M3 - Conference paper
AN - SCOPUS:33847072790
SN - 9780878494026
T3 - Materials Science Forum
SP - 1374
EP - 1378
BT - Fast Software Encryption - 14th International Workshop, FSE 2007, Revised Selected Papers
T2 - 3rd International Materials Symposium and 12th Portuguese Materials Society Meeting 2005
Y2 - 20 March 2005 through 23 March 2005
ER -