Plenary Lecture

The Relation Between Rheological Characterization of PEO Solutions in Water and Morphology of the Corresponding Electrospun Nanofibres

Professor P. Filip
Co-author P. Peer
Institute of Hydrodynamics
Czech Academy of Sciences
Czech Republic

Abstract: Morphology of the resulting nanofibrous mats significantly subjects to rheological characteristics of the electrospun polymer solutions. One of the key parameter in porosity of nanofibrous layers is represented by nanofibre diameters. The entry parameters of polymer solutions are concentration of polymer in a solvent and polymer molecular weight. It will be shown an interplay between viscosity, molecular weight Mw, concentration c and diameter d for the case of poly(ethylene oxide) (PEO) solved in water. A master curve for viscosity was developed for a relatively broad range of Mw (100 - 1,000 kg/mol) and concentrations corresponding to the individual Mw. The mean deviation of the predicted viscosity values (determined with no adjustable parameters) from the experimental ones attains less than 12 %. The mean deviation of the proposed expression relating a nanofibre diameter in dependence on Mw and c from the experimentally obtained diameters does not exceed 7%, a value comparable with the experimental errors.

Brief Biography of the Speaker: Dr. Petr Filip is Associated Professor in Technology of Macromolecular Materials. He received his M.S. degree in 1976 from the Faculty of Mathematics and Physics, Charles University, Prague. In 1980 he received his Ph.D. degree in the Dept. of Partial Differential Equations, Institute of Mathematics, Czechoslovak Academy of Sciences, Prague. Since 1980 he has been with the Institute of Hydrodynamics of the Czechoslovak Academy of Sciences (now Czech Academy of Sciences), Prague, Czech Republic. Here he consecutively served as a Head of the Dept. of Phys.-Chem. Processes and Scientific Secretary. Now he is a Head of the Dept. of Fluid Mechanics and Disperse Systems. He is an author or co-author of nearly 200 journal papers, conference contributions and technical reports. He serves as a member of the Editorial Boards of several international conferences. His current interests include rheology with the emphasis to constitutive modelling, measurement of elongational viscosity, nanomaterials, rheology in cosmetics. He is a member of The Society of Rheology (American Institute of Physics) and The Polymer Processing Society.

Bulletin Board


The Conference Guide is online.

The paper submission deadline has expired. Please choose a future conference to submit your paper.

Plenary Speakers

WSEAS Main Site

Publication Ethics and Malpractice Statement