The Banded Spherulites of iPP Induced by Pressure Vibration Injection Molding

Ren-xi La Qi-xiong Zhou Chao Xia Da-shan Mi Jie Zhang

Citation:  Ren-xi La, Qi-xiong Zhou, Chao Xia, Da-shan Mi, Jie Zhang. The Banded Spherulites of iPP Induced by Pressure Vibration Injection Molding[J]. Chinese Journal of Polymer Science, 2015, 33(11): 1625-1632. doi: 10.1007/s10118-015-1708-x shu

The Banded Spherulites of iPP Induced by Pressure Vibration Injection Molding

    通讯作者: Jie Zhang,
摘要: Isotactic polypropylene (iPP) samples obtained by pressure vibration injection molding (PVIM) and conventional injection molding (CIM) were studied by polarized-light microscopy (PLM), respectively. It was found that the alternating bright and dark banded spherulites were generated in the transitional region of PVIM parts. It is the first time that the banded spherulites of isotactic polypropylene were observed in polymer processing. What's more, the banded spherulites were proved to be constituted of a-form crystal by hot stage polarized-light microscopy (HT-PLM) and wide angle X-ray diffraction (WAXD). Morphology of the banded spherulites was also studied by scaning electronical microscopy (SEM).

English

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  • 发布日期:  2015-11-05
  • 收稿日期:  2015-05-08
  • 修回日期:  2015-07-01
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