Modelling Homogenisation in Single Screw Extruders

Description

The presentation introduces an analytic/numerical model for the estimation of various mixing quality parameters in single screw extruders which has also been implemented. It generalizes an approach of Pinto/Tadmor to pseudoplastic, non-isothermal fluid flow by choosing 2-dimensional power law assumption as a basis and subdividing the extrusion channel into segments. The derived parameters refer to longitudinal and transversal mixing: As prerequisite the velocity field of the polymer melt, Residence Time (RST), RST-Density, Local Shear Deformation and WATS. Also the increasing complexity of the topic regarding current extruder designs has been pointed up and the main difficulties of the current implementation.

Period	13 May 2015
Event title	Danube Vltava Sava Polymer Meeting, 2015 Gmunden, Austria
Event type	Conference
Location	AustriaShow on map