Effect of Extrusion Processing Variables in the Polyethylene/Clay Nanocomposites Rheological Properties

Authors: 
Cristiane da Silva, Leonardo Canto and Leila Visconti

In this work, high density polyethylene, HDPE, was compounded in a twin screw extruder with organophilic treated montmorillonite clay and a compatibilizer agent. The screws configuration was changed from distributive to highly dispersive [1], using four different profiles. The extrusion conditions were also changed. The exfoliation degree was evaluated by X-rays. The rheological measurements showed different behavior according to the processing adopted.

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