Capillary rheometry of a binary mixture polymer/CO 2 in a single screw extruder

Chemical Engineering and Processing: Process Intensification(2015)

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Abstract
•Hot-melt extrusion assisted by sc-CO2 was implemented with a biosourced polymer.•Development of an on-line viscosity measurement based on capillary rheometry.•The impact of CO2 on the rheology of the system was quantified.•Limits of this simple technique have been evidenced.
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Key words
Hot-melt extrusion,Supercritical carbon dioxide,Capillary rheometry,Polymer viscosity
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