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`Effect of Supercritical Gas on Crystallization of Linear and Branched Polypropylene Resins with Foaming Additives - Industrial & Engineering Chemistry
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`Effect of Supercritical Gas on Crystallization of Linear and Branched
`Polypropylene Resins with Foaming Additives
`
` ............_
`-W°.n._§.9n.9. *
`Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of
`Toronto, 5 King's College Road, Toronto, Ontario, Canada M5S 3G8, and Maytag Appliance Division, 2500 Dr. F. E.
`Wright Road, Jackson, Tennessee 38305
`
`Ind. Eng. Chem. Res., 2005, 44 (17), pp 6685-6691
`DOI: 10.1 D21/ie0489608
`Publication Date (Web): July 8,2005
`Copyright © 2005 American Chemical Society
`
`Abstract
`
`The thermal behaviors of linear and branched polypropylene (PP) with foaming additives were
`investigated using a normal and a high-pressure differential scanning calorimeter (DSC).
`Specifically, the effects of material branching, dispersed additives, cooling rates, and dissolved
`blowing agents on the crystallization temperature of PP resins were elucidated. Introducing
`branches between polymer chains increased the crystallization temperature of PP significantly.
`Foaming additives such as talc and glycerol monostearate (GMS) as well as processing
`parameters such as cooling rate also played major roles during the crystallization process. The
`experimental results indicate that the crystallization temperature increases up to 30 “C by
`introducing branches and/or adding additives to the PP materials. However, the crystallization
`temperature was lowered as the supercritical fluid (such as nitrogen or carbon dioxide) was
`dissolved in the branched PP. The effect of hydraulic pressure was identified by performing DSC
`study by employing helium as an inert gas, which has a very limited solubility in the polymer
`matrix.
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`Naguib, Hani E.
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`Received 27 October 2004
`Accepted 19 May 2005
`Published online 8 July 2005
`Published in print 1 August 2005
`
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`2/6/2016
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`Effect of Supercritical Gas on Crystallization of Linear and Branched Polypropylene Resins with Foaming Additives - Industrial & Engineering Chemistry
`
`Citation data is made available by participants in CrossRef's Cited—by Linking service. For a more
`comprehensive list of citations to this article, users are encouraged to perform a search in SciFinder.
`Foaming Pol (vinyl alcoho|)IMicrofibril|ated Cellulose Composites with CO2 and Water as
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`Na Zhao, Lun Howe Mark, Changwei Zhu, Chul B. Park, Qian Li, Robert Glenn, and Todd Ryan
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`Industrial & Engineering Chemistry Research2014 53 (30), 11962-1 1972
`Abstract | Full Text HTML | PDF | PDF w/ Links
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`Thompson
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`Cell Structure Evolution and the Crystallization Behavior of Polypropylenelclay
`Nanocomposites Foams Blown in Continuous Extrusion
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`&r-2.92.
`EC Wentao Zhai, Takashi Kuboki, Lilac Wang, and Chul B. Park, Eung K. Lee and Ham E. Naguib
`Industrial & Engineering Chemistry Research2010 49 (20), 9834-9845
`I
`Abstract | Full Text HTML | PDF | PDF w/ Links
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