Název:
On behaviour of PVB solutions in electrospinning
Autoři:
Švrčinová, Petra ; Lubasová, D. ; Filip, Petr ; Martinová, L. Typ dokumentu: Příspěvky z konference Konference/Akce: Engineering Mechanics 2010, Svratka (CZ), 2010-05-10 / 2010-05-13
Rok:
2010
Jazyk:
eng
Abstrakt: 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.
Klíčová slova:
electric field; electrospinning; nanofibre; polymer solution; viscosity ratio Číslo projektu: CEZ:AV0Z20600510 (CEP), IAA200600703 (CEP) Poskytovatel projektu: GA AV ČR Zdrojový dokument: Engineering Mechanics 2010, ISBN 978-80-87012-26-0
Instituce: Ústav pro hydrodynamiku AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v repozitáři Akademie věd. Původní záznam: http://hdl.handle.net/11104/0185581