A study on the polymer layer-forming phenomena in a rotating disk polycondensation reactor
Article first published online: 10 MAR 2003
Copyright © 1995 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 55, Issue 13, pages 1819–1826, 28 March 1995
How to Cite
Cheong, S. I. and Choi, K. Y. (1995), A study on the polymer layer-forming phenomena in a rotating disk polycondensation reactor. J. Appl. Polym. Sci., 55: 1819–1826. doi: 10.1002/app.1995.070551312
- Issue published online: 10 MAR 2003
- Article first published online: 10 MAR 2003
- Manuscript Accepted: 29 AUG 1994
- Manuscript Received: 25 AUG 1994
An experimental study is reported on the measurement of polymer melt film thickness in a rotating disk polycondensation reactor. The layer thickness of molten poly(ethylene terephthalate) on a rotating disk was measured at 280°C using an electrical conductivity probe at different radial and angular positions. It was observed that the polymer film thickness was not uniform in both radial and angular positions, particularly for high molecular weight polymers. For the slowly rotating disk system employed in our experimental study, the disk rotational speed and gravity effects on the polymer-layer formation were found to be quite significant. The experimental results were used to develop an empirical correlation for the calculation of polymer film thickness and polymer melt holdup on a rotating disk. © 1995 John Wiley & Sons, Inc.