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Journal of Materials Science

, Volume 26, Issue 5, pp 1211–1215 | Cite as

The origin of heteroepitaxy in the system of uniaxially oriented isotactic polypropylene and polyethylene

  • J. Petermann
  • Y. Xu
Papers

Abstract

The epitaxy of polyethylene (PE) on oriented α and β-form of isotactic polypropylene (PP) at different crystallization temperatures and rates have been investigated. The result shows that the epitaxy of PE on β-form of PP does not differ from that on the α-form of PP. The epitactic alignment of the PE lamellae on the PP films becomes more perfect with higher crystallization rates of PE. The epitaxy of PE on α- or β-form of PP does not occur at crystallization temperatures higher than 123 °C. A nucleation controlled process for the alignment of the PE is proposed.

Keywords

Polymer Crystallization Polyethylene Polypropylene Control Process 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd. 1991

Authors and Affiliations

  • J. Petermann
    • 1
  • Y. Xu
    • 1
  1. 1.Polymer and Composites GroupTechnical University Hamburg-HarburgHamburg 90Germany

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