Title
Adsorption kinetics of cationic surfactant onto pulp fibres
Authors
S. SUTY M. BOTKOVA L. KUCERKOVA R. TINO M. JABLONSKY and M. VRSKA

Received March 26, 2013
Published Volume 48 Issue 7-8 July-August
Keywords pulp fibres, cationic surfactant, adsorption, electrokinetic properties

Abstract
Adsorption of cationic compounds on cellulosic fibres totally changed their surface chemistry. The paper is focused on the modification of pulp fibres by a cationic surfactant (quaternary ammonium salts). The work deals with surfactant adsorption kinetics and modes of surfactant adsorption on the cellulosic fibre surface. It was found that the adsorption curve had a rising character. The results showed that the surfactant was not adsorbed onto the fibre surface in monolayer. It can be assumed that the surfactant was also adsorbed into the internal porous structure of the fibres. To monitor the surfactant adsorption on fibres, the method of streaming potential with polyelectrolyte titration was used.