Počet záznamů: 1

On behaviour of PVB solutions in electrospinning

  1. 1.
    0342992 - UH-J 2011 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
    Švrčinová, Petra - Lubasová, D. - Filip, Petr - Martinová, L.
    On behaviour of PVB solutions in electrospinning.
    Engineering Mechanics 2010. Prague: Institute of Thermomechanics AS CR, v. v. i., 2010 - (Zolotarev, I.), Article no. 035. ISBN 978-80-87012-26-0.
    [Engineering Mechanics 2010. Svratka (CZ), 10.05.2010-13.05.2010]
    Grant CEP: GA AV ČR IAA200600703
    Výzkumný záměr: CEZ:AV0Z20600510
    Klíčová slova: nanofibre * electrospinning * polymer solution * viscosity ratio * electric field
    Kód oboru RIV: BK - Mechanika tekutin

    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.
    Trvalý link: http://hdl.handle.net/11104/0185581
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