• Mechanical properties of semicrystalline polymer-polypropylene

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    • Keywords

       

      Semicrystalline polymer; mechanical properties; two-phase model; polypropylene

    • Abstract

       

      The elastic properties of polypropylene have been investigated in terms of a phenomenological model, which is a modified form of the Takayanagi’s two-phase model. In the present model both the change of crystallinity and orientation of the crystalline chains have been taken into account. The orientation effect at the drawn state has been considered in a simplified manner. It has been shown that a partially aligned crystalline phase may be considered as a superposition of a perfectly aligned crystalline region in an elastically isotropic randomly oriented crystalline phase. The predicted values of elastic modulus agree with experimental values.

    • Author Affiliations

       

      P K Biswas1 S Sengupta1 A N Basu1 2

      1. Solid State Physics Research Centre, Physics Department, Presidency College, Calcutta - 700 073, India
      2. Physics Department, Jadavpur University, Calcutta - 700 032, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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