Micromechanical mechanisms for toughness enhancement in β-modified polypropylene

Sven Henning, Rameshwar Adhikari, Georg H. Michler, Francisco J. Baltá Calleja, J. Karger-Kocsis

Research output: Conference contribution

46 Citations (Scopus)

Abstract

Two samples of isotactic polypropylene (iPP) representing the crystalline α- and β- modifications are compared with regard to their semicrystalline morphology and the resulting micromechanical mechanisms. Processes at room temperature (23°C) and at -40°C have been investigated by means of different microscopic techniques. Good results can be achieved by the application of a chemical etching technique to the deformed samples prior to scanning electron microscopy inspection. The toughness enhancement that is measured for the β-iPP is attributed to micromechanical mechanisms initiated within the intercrystalline, amorphous phase. It is shown that the specific nanostructure (lamellar arrangement) causes significant changes in the mechanical behaviour of the materials.

Original languageEnglish
Title of host publicationMacromolecular Symposia
Pages157-171
Number of pages15
Volume214
DOIs
Publication statusPublished - aug. 2004

Fingerprint

Polypropylenes
Toughness
Etching
Nanostructures
Inspection
Crystalline materials
Scanning electron microscopy
Temperature

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

Cite this

Henning, S., Adhikari, R., Michler, G. H., Baltá Calleja, F. J., & Karger-Kocsis, J. (2004). Micromechanical mechanisms for toughness enhancement in β-modified polypropylene. In Macromolecular Symposia (Vol. 214, pp. 157-171) https://doi.org/10.1002/masy.200451012

Micromechanical mechanisms for toughness enhancement in β-modified polypropylene. / Henning, Sven; Adhikari, Rameshwar; Michler, Georg H.; Baltá Calleja, Francisco J.; Karger-Kocsis, J.

Macromolecular Symposia. Vol. 214 2004. p. 157-171.

Research output: Conference contribution

Henning, S, Adhikari, R, Michler, GH, Baltá Calleja, FJ & Karger-Kocsis, J 2004, Micromechanical mechanisms for toughness enhancement in β-modified polypropylene. in Macromolecular Symposia. vol. 214, pp. 157-171. https://doi.org/10.1002/masy.200451012
Henning S, Adhikari R, Michler GH, Baltá Calleja FJ, Karger-Kocsis J. Micromechanical mechanisms for toughness enhancement in β-modified polypropylene. In Macromolecular Symposia. Vol. 214. 2004. p. 157-171 https://doi.org/10.1002/masy.200451012
Henning, Sven ; Adhikari, Rameshwar ; Michler, Georg H. ; Baltá Calleja, Francisco J. ; Karger-Kocsis, J. / Micromechanical mechanisms for toughness enhancement in β-modified polypropylene. Macromolecular Symposia. Vol. 214 2004. pp. 157-171
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