On pressure affected shear viscosity of poly(lactic) acid

Piyamanocha, Pongprapat; Sedláček, Tomáš; Sáha, Petr

dc.title	On pressure affected shear viscosity of poly(lactic) acid	en
dc.contributor.author	Piyamanocha, Pongprapat
dc.contributor.author	Sedláček, Tomáš
dc.contributor.author	Sáha, Petr
dc.relation.ispartof	Novel Trends in Rheology IV
dc.identifier.issn	0094-243X Scopus Sources, Sherpa/RoMEO, JCR
dc.identifier.isbn	978-0-7354-0935-4
dc.date.issued	2011
utb.relation.volume	1375
dc.citation.spage	194
dc.citation.epage	200
dc.event.title	International Conference on Novel Trends in Rheology IV
dc.event.location	Zlín
utb.event.state-en	Czech Republic
utb.event.state-cs	Česká republika
dc.event.sdate	2011-07-27
dc.event.edate	2011-07-28
dc.type	conferenceObject
dc.language.iso	en
dc.publisher	American Institute of Physics (AIP)	en
dc.identifier.doi	10.1063/1.3604478
dc.relation.uri	http://proceedings.aip.org/resource/2/apcpcs/1375/1/194_1?isAuthorized=no
dc.subject	Pressure dependent viscosity	en
dc.subject	Rheology	en
dc.subject	Poly(lactic) acid	en
dc.description.abstract	Evaluation of pressure coefficient of polymer melt viscosity has become important parameter taken into account for flow behavior prediction in polymer processing simulation software. In this paper, the pressure coefficient of biodegradable polymers, poly(lactic) acid (PLA), was investigated. A capillary rheometer equipped with back pressure device controlling pressure in polymer melt during flow was employed for experiments. Pressure sensitivity was evaluated through pressure coefficient calculated via fitting of obtained viscosity data by the help of Carreau-Yasuda model. It was found that pressure coefficient of PLAs is strongly affected by the internal structure of tested polymer.	en
utb.faculty	Faculty of Technology
utb.faculty	University Institute
dc.identifier.uri	http://hdl.handle.net/10563/1002819
utb.identifier.rivid	RIV/70883521:28110/11:43867462!RIV12-MPO-28110___
utb.identifier.rivid	RIV/70883521:28610/11:43867462!RIV12-MPO-28610___
utb.identifier.obdid	43868225
utb.identifier.scopus	2-s2.0-79961218733
utb.identifier.wok	000302935100015
utb.source	d-wok
dc.date.accessioned	2012-06-04T11:34:13Z
dc.date.available	2012-06-04T11:34:13Z
dc.rights.access	openAccess
utb.ou	Centre of Polymer Systems
utb.contributor.internalauthor	Piyamanocha, Pongprapat
utb.contributor.internalauthor	Sedláček, Tomáš
utb.contributor.internalauthor	Sáha, Petr