Abstract
Extradate swell is a key performance contributor in extrusion blow molding. The relation between extrudate swell and rheometric material characteristics is non-trivial. It is studied here for a large set of high-density polyethylenes. Extrudate swell data are derived from photographic analysis on a lab-scale annular extrusion set-up, while rheometric parameters are obtained from dynamic spectroscopy, uniaxial elongation, creep and creep recovery experimentation. The annular set-up produces thickness and diameter swell data, which are found to depend in different ways on the material viscoelasticity. The former correlates well with recoverable or storage compliance, while the latter correlates well with the ratio of storage to loss modulus.
Original language | English |
---|---|
Title of host publication | The XVth International Congress on Rheology - The Society of Rheology 80th Annual Meeting |
Pages | 51-54 |
DOIs | |
Publication status | Published - 2008 |
Externally published | Yes |
Event | 15th International Congress on Rheology - Monterey Conference Center, Monterey, United States Duration: 3 Aug 2008 → 8 Aug 2008 Conference number: 15 http://www.rheology.org/ICR2008/ |
Publication series
Name | AIP Conference Proceedings |
---|---|
Volume | 1027 |
Conference
Conference | 15th International Congress on Rheology |
---|---|
Abbreviated title | ICR 2008 |
Country/Territory | United States |
City | Monterey |
Period | 3/08/08 → 8/08/08 |
Internet address |
Keywords
- HDPE
- Polyethylene
- Swell