Journal article
Critcal stress and recoverable shear for polymer melt fracture
Abstract
Abstract The phenomenon of extrudate distortion, which is called melt fracture, was studied for polystyrene samples of narrow and broad molecular weight distribution, and commerical samples of polypropylene and linear and branched polyethylene. It was experimentally found that the shear stress at the onset of melt fracture (τ cr ) is of the order of 10 6 dynes/cm 2 and independent of the distribution of molecular weights. As the weight average …
Authors
Vlachopoulos J; Alam M
Journal
Polymer Engineering & Science, Vol. 12, No. 3, pp. 184–192
Publisher
Wiley
Publication Date
May 1972
DOI
10.1002/pen.760120305
ISSN
0032-3888