The effects of viscous dissipation on the flow of polymer melts in capillary dies are examined. Shear heating is shown to have a significant effect on capillary viscometry data. The data is found to be dependent on capillary geometry due to shear heating effects. A mathematical model of the capillary flow is presented. The numerical solution gives a reasonable agreement with temperature rises measured using an IR pyrometer.
|Original language||English (US)|
|Number of pages||5|
|State||Published - Jan 1 1974|
|Event||Unknown conference - San Francisco, CA, USA|
Duration: May 13 1974 → May 16 1974
|City||San Francisco, CA, USA|
|Period||5/13/74 → 5/16/74|