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On pressure and temperature affected shear viscosity behaviour of Poly(Lactid) acid melt

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dc.title On pressure and temperature affected shear viscosity behaviour of Poly(Lactid) acid melt en
dc.contributor.author Piyamanocha, Pongprapat
dc.contributor.author Sedláček, Tomáš
dc.contributor.author Sáha, Petr
dc.relation.ispartof Recent Researches in Geography, Geology, Energy, Environment and Biomedicine - Proc. of the 4th WSEAS Int. Conf. on EMESEG'11, 2nd Int. Conf. on WORLD-GEO'11, 5th Int. Conf. on EDEB'11
dc.identifier.isbn 978-1-61804-022-0
dc.date.issued 2011
dc.citation.spage 396
dc.citation.epage 400
dc.event.title 4th WSEAS International Conference on Engineering Mechanics, Structures, Engineering Geology, EMESEG'11, 2nd International Conference on Geography and Geology 2011, WORLD-GEO'11, 5th International Conference on EDEB'11
dc.event.location Corfu Island
utb.event.state-en Greece
utb.event.state-cs Řecko
dc.event.sdate 2011-07-14
dc.event.edate 2011-07-16
dc.type conferenceObject
dc.language.iso en
dc.relation.uri http://www.wseas.us/e-library/conferences/2011/Corfu/GEMESED/GEMESED-70.pdf
dc.subject Carreau-Yasuda model en
dc.subject Poly(lactid) acid en
dc.subject Pressure coefficient en
dc.subject Rheology en
dc.subject Shear viscosity en
dc.subject Temperature coefficient en
dc.description.abstract Rheological properties of a poly(lactid) acid (PLA) as one of the most important bio-base sustainable polymer potentially applicable for medical applications had been studied. Shear flow behaviour of PLA melt was determined using capillary rheometer modified by backpressure device directly connected to the main rheological apparatus. The device employed increases pressure actuating on polymer melt stream in capillary reservoir through restricting valve resulting in an increase of melt viscosity. The temperature and pressure sensitivity coefficients were determined through the viscosity data fitting with the Carreau-Yasuda model. The study revealed that shear viscosity of tested PLA melt is strongly affected by temperature and pressure. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1004720
utb.identifier.obdid 43867382
utb.identifier.scopus 2-s2.0-83655190473
utb.source d-scopus
dc.date.accessioned 2015-06-04T12:55:05Z
dc.date.available 2015-06-04T12:55:05Z
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Piyamanocha, Pongprapat
utb.contributor.internalauthor Sedláček, Tomáš
utb.contributor.internalauthor Sáha, Petr
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