Original title: On behaviour of PVB solutions in electrospinning
Authors: Švrčinová, Petra ; Lubasová, D. ; Filip, Petr ; Martinová, L.
Document type: Papers
Conference/Event: Engineering Mechanics 2010, Svratka (CZ), 2010-05-10 / 2010-05-13
Year: 2010
Language: eng
Abstract: Electrospinning produces nanofibre sheets from polymer solutions under high electric field. Rheological properties of these solutions play a substantial role in a nanofibre formation simultaneously with properties of polymers and solvents applied. This contribution aims at a determination of dependence of shear viscosity of polyvinylbuthyral (PVB) on the intensity of electric field to which PVB solutions are exposed. PVB was dissolved consecutively in a series of solvents as 10% wt. solution. It was found that the viscosity ratio (viscosity of a solution in presence of electric field/viscosity of a solution in absence of electric field) depends on the polarity of solvent. This pre-determines the possibility of application of the individual solvents for the process of electrospinning.
Keywords: electric field; electrospinning; nanofibre; polymer solution; viscosity ratio
Project no.: CEZ:AV0Z20600510 (CEP), IAA200600703 (CEP)
Funding provider: GA AV ČR
Host item entry: Engineering Mechanics 2010, ISBN 978-80-87012-26-0

Institution: Institute of Hydrodynamics AS ČR (web)
Document availability information: Fulltext is available in the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0185581

Permalink: http://www.nusl.cz/ntk/nusl-41452


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Research > Institutes ASCR > Institute of Hydrodynamics
Conference materials > Papers