MORPHOLOGICAL-CHANGES DURING STRETCHING OF POLYPROPYLENE FILMS STUDIED BY SCANNING FORCE MICROSCOPY

Authors
HILD S GUTMANNSBAUER W LUTHI R HAEFKE H GUNTHERODT HJ
Citation
S. Hild et al., MORPHOLOGICAL-CHANGES DURING STRETCHING OF POLYPROPYLENE FILMS STUDIED BY SCANNING FORCE MICROSCOPY, Helvetica Physica Acta, 67(7), 1994, pp. 759-760
Citations number
4
Categorie Soggetti
Physics
Journal title
Helvetica Physica Acta → ACNP
ISSN journal
00180238
Volume
67
Issue
7
Year of publication
1994
Pages
759 - 760
Database
ISI
SICI code
0018-0238(1994)67:7<759:MDSOPF>2.0.ZU;2-B
Abstract
A scanning force microscop (SFM) is used to characterize the surface s tructure of a row nucleated polypropylene film. With a home-build stre tching machine for the available SFM morphological changes caused by s tepwise stretching can be observed. The morphological changes during s tretching the film are imaged. Stretching HEPP vertical to extrusion d irection causes cracks advancing through several cristalline rows. Elo ngation parallel to extrusion direction, the separation of adjacent la mellae by a translatory displacement can be visualized.