Original title: Choice of polymer samples geometry for measurement of elongational viscosity using ser universal testing platform
Authors: Filip, Petr ; Švrčinová, Petra
Document type: Papers
Conference/Event: Engineering Mechanics 2010, Svratka (CZ), 2010-05-10 / 2010-05-13
Year: 2010
Language: eng
Abstract: Generation of purely uniaxial elongational flow of polymer melts is very uneasy problem. It seems that each hitherto developed device for measurement of uniaxial elongational viscosity also produces - to some extent - a planar flow. During the last period there has been questioned - based on this reasoning - the applicability of a SER Universal Testing Platform and was recommended the range of rectangular dimensions of polymer samples for which measurements of uniaxial elongational viscosity is possible to take into account. The aim of this contribution consists in verification of invariantness of uniaxial elongational measurements using the SER Universal Testing Platform with respect to the dimensions of polymer samples applied. There is shown that for sufficiently broad region of admissible widths and thicknesses the results are identical. For these measurements there was used LDPE Escorene (Exxon, U.S.A.).
Keywords: LDPE; planar flow; polymer melts; SER Universal Testing Platform; uniaxial elongational flow; uniaxial elongational viscosity
Project no.: CEZ:AV0Z20600510 (CEP), GA103/08/1307 (CEP)
Funding provider: GA 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/11104/0185563

Permalink: http://www.nusl.cz/ntk/nusl-41445


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