3-D modeling of polymerization in conveying screw element in twin-screw extruder

Document Type

Conference Proceeding

Publication Date

10-14-2003

Abstract

The polymerization of ε-caprolactone in fully intermeshing conveying screw elements of co-rotating twin screw extruders was simulated with Fluent. The effects of the pitch on the element, temperature, flow rate, and screw rotating speed upon the reaction progression were investigated. It was found that the back-flow in the screw element affects the progress of polymerization. The simulation result from 3-D model differs significantly from 1-D model, especially in relation to slow reactions. This is because reaction is very sensitive to temperature change, and the value of heat transfer coefficient at the barrel and screw surface used in 1-D model may not represent the real conditions in extruders.

Identifier

0141841636 (Scopus)

Publication Title

Annual Technical Conference ANTEC Conference Proceedings

First Page

147

Last Page

151

Volume

1

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