Dynamic behavior of a single screw plasticating extruder part I: Experimental study

R. W. Nelson, D. Chan, B. Yang, L. James Lee*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The dynamic responses of a 2–1/2 inch single screw plasticating extruder and extrusion line were investigated. Step changes in screw speed, take‐up speed, back pressure, and processing materials were used to determine the transient responses of barrel pressures, die pressure, melt temperature, and extrudate thickness. Dynamic responses of the entire extrusion line can be explained by the flow mechanism of the extruder and the logical properties of the polymer used. A capillary rheometer was also used to determine if it could simulate pressure responses in the extruder for screw speed changes. Results showed that capillary rheometer was helpful in estimating the short term pressure responses in the die.

Original languageEnglish
Pages (from-to)144-151
Number of pages8
JournalPolymer Engineering & Science
Volume26
Issue number2
DOIs
StatePublished - Jan 1986

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