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Chinese Journal of High Pressure Physics  > 2014  >  28(3): 373-378.
LIU Cheng-Gang, SHAO Chun-Guang, ZHANG Rui-Jing, ZHANG Yang, ZHANG Dou-Dou, WANG Ming-You, CAO Wei, LI Qian, SHEN Chang-Yu. Study on Crystal Structure of Polyethylene Solidified under Rapid Compression[J]. Chinese Journal of High Pressure Physics, 2014, 28(3): 373-378. doi: 10.11858/gywlxb.2014.03.017
Citation: LIU Cheng-Gang, SHAO Chun-Guang, ZHANG Rui-Jing, ZHANG Yang, ZHANG Dou-Dou, WANG Ming-You, CAO Wei, LI Qian, SHEN Chang-Yu. Study on Crystal Structure of Polyethylene Solidified under Rapid Compression[J]. Chinese Journal of High Pressure Physics, 2014, 28(3): 373-378. doi: 10.11858/gywlxb.2014.03.017
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Study on Crystal Structure of Polyethylene Solidified under Rapid Compression

doi: 10.11858/gywlxb.2014.03.017
  • 1.

    National Engineering Research Center for Advanced Polymer Processing Technology, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, China

  • 2.

    Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031, China

  • Received Date: 21 Nov 2012
  • Rev Recd Date: 19 Feb 2013
    Abstract
  • High-density polyethylene (HDPE) melt and linear low-density polyethylene (LLDPE) melt were solidified through three kinds of experimental processes, including rapid compressing, natural cooling and quenching, and then the microstructure of samples was investigated.The results show that the crystallinity distribution of rapid compressing samples was more uniform regardless of low thermal diffusivity of polymers, so the "skin-core" type of crystallinity distribution was not found in RC samples.In addition, compared with quenching, rapid compressing can also hinder the crystallization of the polymer melt effectively, especially for LLDPE with low mobility of molecular chains.

     

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