The Banded Spherulites of iPP Induced by Pressure Vibration Injection Molding

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

doi:10.1007/s10118-015-1708-x

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The Banded Spherulites of iPP Induced by Pressure Vibration Injection Molding

PAPER | Updated：2021-06-21

- The Banded Spherulites of iPP Induced by Pressure Vibration Injection Molding
- The Banded Spherulites of iPP Induced by Pressure Vibration Injection Molding
- Chinese Journal of Polymer Science 2015年33卷第11期页码：1625-1632
- Affiliations：
  
  State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
- Author bio：
  
  *Jie Zhang (张杰), E-mail: zhangjie@scu.edu.cn
- Funds：
- DOI：10.1007/s10118-015-1708-x
  中图分类号：
- 收稿：2015-05-08，
  
  修回：2015-06-26，
  
  录用：2015-07-01，
  
  纸质出版：2015-11
- Accepted：
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Ren-xi La, Qi-xiong Zhou, Chao Xia, 等. The Banded Spherulites of iPP Induced by Pressure Vibration Injection Molding[J]. Chinese Journal of Polymer Science, 2015,33(11):1625-1632.

Ren-xi La, Qi-xiong Zhou, Chao Xia, et al. 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.
Ren-xi La, Qi-xiong Zhou, Chao Xia, 等. 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.

Ren-xi La, Qi-xiong Zhou, Chao Xia, et al. 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. DOI：

摘要

Abstract

Isotactic polypropylene (

PP) 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

-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).

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