Influence of cell structure parameters on the mechanical properties of microcellular polypropylene materials

Authors

  • Wei Gong,

    1. College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China
    2. Department of Material and Building Engineering, Guizhou Normal University, Guiyang 550014, China
    3. National Engineering Research Center for Compounding and Modification Polymeric Materials, Guiyang 550014, China
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  • Jiacheng Gao,

    Corresponding author
    1. College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China
    • College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China
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  • Ming Jiang,

    1. National Engineering Research Center for Compounding and Modification Polymeric Materials, Guiyang 550014, China
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  • Li He,

    1. National Engineering Research Center for Compounding and Modification Polymeric Materials, Guiyang 550014, China
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  • Jie Yu,

    1. National Engineering Research Center for Compounding and Modification Polymeric Materials, Guiyang 550014, China
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  • Jianhua Zhu

    1. National Engineering Research Center for Compounding and Modification Polymeric Materials, Guiyang 550014, China
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Abstract

Microcellular polypropylene (PP) was prepared through chemical microcellular injection under different processing parameters. The effects of cell structure parameters on the mechanical properties of PP materials were analyzed by the microsphere model. The results show that the mechanical properties of microcellular PP with a smaller cell size and more uniform size distribution were enhanced. The relationship between the mechanical properties and cell structure parameters correlated well with the theoretical model. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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