article

Abstract

Currently the selection of elements and operating conditions in the mixing of various materials in a co-rotating twin screw extruder is an art which requires previous experimental studies. In this work experimental and theoretical tools were developed to investigate the mixing process in such an extruder in a systematic way. The thermomechanical history of the mixture was simulated employing a finite element method. To verify the numerical findings, the development of the interface was monitored in samples collected from a "clam shell" twin screw extruder and showed good agreement with the calculated profile. The goodness of mixing was established by calculating the accumulated energy input.

Adv.Polym.Tech 8, 327-335 (1988)

Development of experimental techniques and simulation methods to analyze mixing in

Co-rotating Twin Screw Extruder