An evalution of mixing quality of three different types of mixing elements

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

An evalution of mixing quality of three different types of mixing elements

Popis výsledku v původním jazyce

In this paper, the performance of three different mixing elements on color dispersion in HDPE and LLDPE polymer melt 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 in-line melt camera is used for 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, which is the best tool to characterize its excellent mixing performance. Both 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 Stratablend II mixer has the 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

Název v anglickém jazyce

An evalution of mixing quality of three different types of mixing elements

Popis výsledku anglicky

In this paper, the performance of three different mixing elements on color dispersion in HDPE and LLDPE polymer melt 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 in-line melt camera is used for 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, which is the best tool to characterize its excellent mixing performance. Both 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 Stratablend II mixer has the 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

Druh

D - Stať ve sborníku

CEP obor

JP - Průmyslové procesy a zpracování

OECD FORD obor

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Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Annual Technical Conference - ANTEC, Conference Proceedings

ISBN

978-0-9753707-9-7

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

1229-1236

Název nakladatele

Society of Plastics Engineers, Inc.

Místo vydání

Brookfield

Místo konání akce

Boston

Datum konání akce

1. 5. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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