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The influence of die design and extensional rheology on the onset of 'wave' interfacial instabilities in coextrusion flows

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dc.title The influence of die design and extensional rheology on the onset of 'wave' interfacial instabilities in coextrusion flows en
dc.contributor.author Zatloukal, Martin
dc.contributor.author Perdikoulias, John
dc.contributor.author Tzoganakis, Costas
dc.contributor.author Sáha, Petr
dc.relation.ispartof TAPPI - Polymers, Laminations and Coatings Conference
dc.identifier.issn 1047-305X OCLC, Ulrich, Sherpa/RoMEO, JCR
dc.date.issued 2001
dc.citation.spage 529
dc.citation.epage 535
dc.event.title Proceedings of the 2001 TAPPI Polymers, Laminations and Coating Conference
dc.event.location San Diego
utb.event.state-en United States
utb.event.state-cs Spojené státy americké
dc.event.sdate 2001-08-26
dc.event.edate 2001-08-30
dc.type conferenceObject
dc.language.iso en
dc.description.abstract The influence of die design and rheology on the onset of 'wave' interfacial instabilities in coextrusion flows is evaluated through flow history dependent viscoelastic stress calculation using a modified Leonov model and the velocity field determination through FEM with the help of a newly proposed criterion based on the difference of normal stress differences across the layer interface in the merging area. The investigation shows how this criterion can be used to investigate the role of the die design and rheology of coextruded materials from the interfacial instability point of view. It is shown that both the die geometry and the extensional rheology have a crucial effect on the interfacial wave instability. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1005095
utb.identifier.rivid RIV/70883521:28110/02:63500600!RIV/2003/MSM/281103/N
utb.identifier.rivid RIV/70883521:28110/02:63500601!RIV/2003/MSM/281103/N
utb.identifier.obdid 14053103
utb.identifier.scopus 2-s2.0-0142210407
utb.source d-scopus
dc.date.accessioned 2015-06-04T12:56:59Z
dc.date.available 2015-06-04T12:56:59Z
utb.contributor.internalauthor Zatloukal, Martin
utb.contributor.internalauthor Sáha, Petr
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