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On behaviour of PVB solutions in electrospinning
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SYSNO ASEP 0342992 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title On behaviour of PVB solutions in electrospinning Author(s) Švrčinová, Petra (UH-J)
Lubasová, D. (CZ)
Filip, Petr (UH-J) ORCID, RID, SAI
Martinová, L. (CZ)Number of authors 4 Source Title Engineering Mechanics 2010, Book of extended abstracts. - Prague : Institute of Thermomechanics AS CR, v. v. i., 2010 / Zolotarev I. - ISBN 978-80-87012-26-0 Pages article no. 035 Number of pages 4 s. Publication form CD-ROM - CD-ROM Action Engineering Mechanics 2010 Event date 10.05.2010-13.05.2010 VEvent location Svratka Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords nanofibre ; electrospinning ; polymer solution ; viscosity ratio ; electric field Subject RIV BK - Fluid Dynamics R&D Projects IAA200600703 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20600510 - UH-J (2005-2011) Annotation 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. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2011
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