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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2018
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th-cmuir.6653943832-610752018-09-10T04:03:49Z Effect of die geometry on foaming behaviors of high melt strength polypropylene with CO2 Patrick C. Lee Wanrudee Kaewmesri Jing Wang Chul B. Park Jantrawan Pumchusak Rick Follond Andreas Praller Engineering 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. 2018-09-10T04:03:49Z 2018-09-10T04:03:49Z 2007-09-28 Conference Proceeding 2-s2.0-34648817406 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34648817406&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/61075 |
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Engineering Patrick C. Lee Wanrudee Kaewmesri Jing Wang Chul B. Park Jantrawan Pumchusak Rick Follond Andreas Praller Effect of die geometry on foaming behaviors of high melt strength polypropylene with CO2 |
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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 Proceeding |
author |
Patrick C. Lee Wanrudee Kaewmesri Jing Wang Chul B. Park Jantrawan Pumchusak Rick Follond Andreas Praller |
author_facet |
Patrick C. Lee Wanrudee Kaewmesri Jing Wang Chul B. Park Jantrawan Pumchusak Rick Follond Andreas Praller |
author_sort |
Patrick C. Lee |
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 |
2018 |
url |
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34648817406&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/61075 |
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1681425553447452672 |