Journal article
Flow Instabilities of Linear PE in Capillary Dies
Abstract
Abstract Flow instabilities of linear polyethylenes have been studied in capillary dies. The effects of shear stress, temperature, molecular weight and material of construction of the dies on both the critical shear stress for the onset of slip and slip velocities have been evaluated. Flow curves were obtained using capillary dies with constant L/D and different diameters. Slip velocities were calculated using the Mooney technique [1] as a …
Authors
Larrazabal HJ; Hrymak AN
Journal
International Polymer Processing, Vol. 17, No. 1, pp. 44–48
Publisher
De Gruyter
Publication Date
March 1, 2002
DOI
10.3139/217.1673
ISSN
0930-777X