Preferential wetting phenomenon in bicomponent polymer melt flow
Article first published online: 9 MAR 2003
Copyright © 1979 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 24, Issue 3, pages 693–701, 1 August 1979
How to Cite
Southern, J. H. and Ballman, R. L. (1979), Preferential wetting phenomenon in bicomponent polymer melt flow. J. Appl. Polym. Sci., 24: 693–701. doi: 10.1002/app.1979.070240307
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Revised: 3 JAN 1979
- Manuscript Received: 13 NOV 1978
For two polymer melts spun in a side-by-side configuration through a capillary, interface shape and spinneret exit angle data are presented as a function of viscosity ratio, spinneret dimensions, and relative polymer-steel wettability. Nylon-nylon versus nylon-polyurethane bicomponent flow systems are compared. A surface tension phenomenon is postulated to be significant in controlling the bicomponent fiber interface shape for capillary length-to-diameter ratios of the order of unity.