Effect of die geometry on foaming behaviors of high melt strength polypropylene with CO2

Effect of die geometry on foaming behaviors of high melt strength polypropylene with CO2

A systematic study is conducted to investigate the effect of die geometry (i.e., pressure and pressure-drop rate) on the cell-nucleation and growth behaviors of noncrosslinked high melt strength (HMS) polypropylene (PP) foams blown with supercritical CO2. The experimental results show that the cellu...

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Main Authors: Lee P.C., Kaewmesri W., Wang J., Park C.B., Pumchusak J., Follond R., Praller A.
Format: Conference or Workshop Item
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-34648817406&partnerID=40&md5=b66e08401d1d16a11f077e8166654e39
http://cmuir.cmu.ac.th/handle/6653943832/5189
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Institution: Chiang Mai University
Language: English
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spelling th-cmuir.6653943832-51892014-08-30T02:56:15Z Effect of die geometry on foaming behaviors of high melt strength polypropylene with CO2 Lee P.C. Kaewmesri W. Wang J. Park C.B. Pumchusak J. Follond R. Praller A. A systematic study is conducted to investigate the effect of die geometry (i.e., pressure and pressure-drop rate) on the cell-nucleation and growth behaviors of noncrosslinked high melt strength (HMS) polypropylene (PP) foams blown with supercritical CO2. The experimental results show that the cellular morphologies of PP foams are sensitive to the die geometry. The initial expansion behavior of the foam extrudate at the die exit is recorded using a high-speed CCD camera, which allows the study of die geometry effect on both initial expansion behavior and final cellular morphology. The effect of die temperature on the cell morphology is also studied. 2014-08-30T02:56:15Z 2014-08-30T02:56:15Z 2007 Conference Paper 70223 ACPED http://www.scopus.com/inward/record.url?eid=2-s2.0-34648817406&partnerID=40&md5=b66e08401d1d16a11f077e8166654e39 http://cmuir.cmu.ac.th/handle/6653943832/5189 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description A systematic study is conducted to investigate the effect of die geometry (i.e., pressure and pressure-drop rate) on the cell-nucleation and growth behaviors of noncrosslinked high melt strength (HMS) polypropylene (PP) foams blown with supercritical CO2. The experimental results show that the cellular morphologies of PP foams are sensitive to the die geometry. The initial expansion behavior of the foam extrudate at the die exit is recorded using a high-speed CCD camera, which allows the study of die geometry effect on both initial expansion behavior and final cellular morphology. The effect of die temperature on the cell morphology is also studied.
format Conference or Workshop Item
author Lee P.C.
Kaewmesri W.
Wang J.
Park C.B.
Pumchusak J.
Follond R.
Praller A.
spellingShingle Lee P.C.
Kaewmesri W.
Wang J.
Park C.B.
Pumchusak J.
Follond R.
Praller A.
Effect of die geometry on foaming behaviors of high melt strength polypropylene with CO2
author_facet Lee P.C.
Kaewmesri W.
Wang J.
Park C.B.
Pumchusak J.
Follond R.
Praller A.
author_sort Lee P.C.
title Effect of die geometry on foaming behaviors of high melt strength polypropylene with CO2
title_short Effect of die geometry on foaming behaviors of high melt strength polypropylene with CO2
title_full Effect of die geometry on foaming behaviors of high melt strength polypropylene with CO2
title_fullStr Effect of die geometry on foaming behaviors of high melt strength polypropylene with CO2
title_full_unstemmed Effect of die geometry on foaming behaviors of high melt strength polypropylene with CO2
title_sort effect of die geometry on foaming behaviors of high melt strength polypropylene with co2
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-34648817406&partnerID=40&md5=b66e08401d1d16a11f077e8166654e39
http://cmuir.cmu.ac.th/handle/6653943832/5189
_version_ 1681420378289733632

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