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Crystallization of polypropylene near the surface in injection-molded plaques: A comparison of morphology and a numerical analysis
http://hdl.handle.net/2297/28503
http://hdl.handle.net/2297/285035bb1d404-3484-4bd6-a9db-97fe89a100b3
名前 / ファイル | ライセンス | アクション |
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TE-PR-KOBAYASHI-Y-1236.pdf (686.5 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Crystallization of polypropylene near the surface in injection-molded plaques: A comparison of morphology and a numerical analysis | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Kobayashi, Yutaka
× Kobayashi, Yutaka× Otsuki, Yasuhiko× Kanno, Hiroaki× Sasakawa, Tomoyoshi× Hanamoto, Yasuhiro× Kanai, Toshitaka |
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書誌情報 |
Polymer Engineering and Science 巻 51, 号 7, p. 1236-1244, 発行日 2011-07-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0032-3888 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00776994 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1002/pen.21864 | |||||
出版者 | ||||||
出版者 | Wiley-Blackwell | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Skin morphology formation on injection-molded isotactic polypropylene (PP) was investigated using micro-beam synchrotron wide-angle X-ray diffraction and numerical simulation. The 1-20 Î?m depth range was characterized with an X-ray beam of 0.273 Î?m Ï? 0.389 Î?m in size. From an evaluation of doping nucleating agents (NA) in PP, the NAs did not work at a depth of 1 Î?m. α-specified NA affected crystallization within a 5-Î?m depth. β-specified PP showed α-form crystallinity at the 5-20 Î?m depth. The mesomorphic crystal near the surface showed extremely high orientation. From viscoelastic flow simulation, PP molecules near the surface were oriented in the flow direction by extensional flow in the flow front, but freezing occurred faster than flow-induced crystallization. It was estimated that the delay of crystallization occurred during the transient temperature. The deformation rate did not cause a difference in crystal morphology near the surface, but the cooling rate did. Copyright © 2009 Society of Plastics Engineers. | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |