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

Piyamanocha, Pongprapat; Sedláček, Tomáš; Sáha, Petr

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