Orientation development in retensilized, biaxially oriented polypropylene films
Article first published online: 10 MAR 2003
Copyright © 1991 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 42, Issue 1, pages 159–168, 5 January 1991
How to Cite
Strobel, J. M. and Nam, S. (1991), Orientation development in retensilized, biaxially oriented polypropylene films. J. Appl. Polym. Sci., 42: 159–168. doi: 10.1002/app.1991.070420119
- Issue published online: 10 MAR 2003
- Article first published online: 10 MAR 2003
- Manuscript Received: 26 FEB 1990
A basic study of orientation development in retensilized, biaxially oriented polypropylene films was performed. Wide-angle X-ray scattering (WAXS) and birefringence measurement techniques were used to examine films prepared under specific processing conditions. Biaxial orientation factors were determined for these films and were correlated with end-use properties of the materials. In particular, the dispensability of oriented polypropylene films was found to correlate with crystalline-phase and amorphous-phase orientation factors. Dispensability is a relatively important property of pressure-sensitive tapes; it is defined as the force necessary to cut a film backing over a serrated blade of the type used in commercially available adhesive-tape dispensers.