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Method of analyzing and quantifying the performance of mixing sections

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dc.title Method of analyzing and quantifying the performance of mixing sections en
dc.contributor.author Kubík, Pavel
dc.contributor.author Vlček, Jiří
dc.contributor.author Tzoganakis, Costas
dc.contributor.author Miller, Luke
dc.relation.ispartof Polymer Engineering and Science
dc.identifier.issn 0032-3888 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2012
utb.relation.volume 52
utb.relation.issue 6
dc.citation.spage 1232
dc.citation.epage 1240
dc.type article
dc.language.iso en
dc.publisher Wiley-Blackwell en
dc.identifier.doi 10.1002/pen.22191
dc.relation.uri http://onlinelibrary.wiley.com/doi/10.1002/pen.22191/abstract
dc.description.abstract In this article, the performance of three different mixing elements on color dispersion in high-density polyethylene and linear low-density polyethylene polymer stream during extrusion is studied. Two similarly designed Maddock mixers and a Stratablend II mixer are used as the last part of a general purpose single screw. Moreover, an inline melt camera is used for the quantification of mixing quality by visualization of grayscale of the color dispersion and thus mixing. The Stratablend II mixer produces the lowest and most uniform standard deviation. Both the Maddock mixers showed the same trend but higher values of standard deviation. All results are then compared with a full 3D finite element method simulation. Simulations clearly indicate that the Stratablend II mixer has the best mixing abilities and that these are mainly given by its unique design with high average value of shear stress. The role of elongational stress does not appear to have a high influence on mixing for these mixers. The results also suggest that the key factor for achieving better mixing is the frequency by which a large fraction of the material passes through the high shear stress regions of the mixer. © 2012 Society of Plastics Engineers. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1002835
utb.identifier.rivid RIV/70883521:28110/12:43867848!RIV13-MSM-28110___
utb.identifier.obdid 43867936
utb.identifier.scopus 2-s2.0-84861339403
utb.identifier.wok 000304091300008
utb.identifier.coden PYESA
utb.source j-scopus
dc.date.accessioned 2012-06-08T07:47:24Z
dc.date.available 2012-06-08T07:47:24Z
utb.contributor.internalauthor Kubík, Pavel
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