Electrokinetic transport of aqueous solutions of electrolytes through fibrous systems. Non-linear phenomenological relations |
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| Affiliation: | 1. Department of Physics, Faculty of Sciences, University of Granada, Granada, Spain;2. Department of Physics, University College of Jaèn, Jaèn, Spain;2. Climate Impacts Research Centre (CIRC). Dept. of Ecology and Environmental Science, Umeå University, Sweden;3. Departament de Física, Facultat de Ciències, Universitat Autònoma de Barcelona, Spain;4. Institut de Ciència i Tecnologia Ambientals (ICTA), Universitat Autònoma de Barcelona, Spain;1. Neurobiology Laboratory for Brain Aging and Mental Health, Transfaculty Research Platform, Molecular & Cognitive Neuroscience, University of Basel, Wilhelm Klein-Str. 27, CH-4012 Basel, Switzerland;2. Psychiatric University Clinics, University of Basel, Wilhelm Klein-Str. 27, CH-4012 Basel, Switzerland;3. Biopathologie de la Myéline, Neuroprotection et Stratégies Thérapeutiques, INSERM U1119, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Bâtiment 3 de la Faculté de Médecine, 11 rue Humann, 67000 Strasbourg, France;1. Clinical Microbiology Division, Indian Institute of Integrative Medicine (CSIR), Canal Road, Jammu, 180001, India;2. Discovery Informatics, Indian Institute of Integrative Medicine (CSIR), Canal Road, Jammu, 180001, India;3. Medicinal Chemistry Division, Indian Institute of Integrative Medicine (CSIR), Canal Road, Jammu, 180001, India;4. Academy of Scientific & Innovative Research (AcSIR), New Delhi, 110001, India |
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| Abstract: | An experimental investigation on streaming potentials of porous plugs of cellulose and glass fibre in the non-linear range is described. The variation of the second order electrokinetic coefficients, L211 and L221, as a function of fibre concentration in the porous pad has been studied. The electroviscous effect accounts for the decrease of these coefficients as packing density increases. The dependence of L211 and L221 on the concentration of the various electrolytes used is somewhat similar to that of the first order coefficients L21 and L22 (s), respectively. The explanation for this effect might be found in the influence exerted by the hydrodynamic conditions prevailing in the capillaries on the structure of the electric double layer and on the surface conductance. |
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