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Journal of Materials Science

, Volume 29, Issue 24, pp 6539–6542 | Cite as

Micellar morphology and its plastic deformation behaviour in ultra-high molecular weight polyethylene

  • H. -J. Kestenbach
  • J. Petermann
Papers

Abstract

Highly oriented samples from ultra-high molecular weight and normal high-density polyethylene (UHMWPE, HDPE) were prepared under the same experimental conditions. The morphology of the UHMWPE, investigated by transmission electron microscopy, was found to be oriented micellar, while the HDPE samples had a shishkebab morphology. Tensile test experiments under cyclic loading conditions exhibit a strain-hardening effect (increase in stress for the onset of plastic deformation) for HDPE, while the UHMWPE shows a decrease in Young's modulus, which is attributed to similar molecular mechanisms as for the Mullins effect in particle-filled elastomers.

Keywords

Transmission Electron Microscopy Plastic Deformation Tensile Test Cyclic Loading Deformation Behaviour 
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 & Hall 1994

Authors and Affiliations

  • H. -J. Kestenbach
    • 1
  • J. Petermann
    • 2
  1. 1.Departomento de Engenharia de MateriaisUniversidade Federal de Sao CarlosSao Carlos, SPBrazil
  2. 2.Lehrstuhl für Werkstoffkunde, FB ChemietechnikUniversität DortmundDortmundGermany

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