Optimization of the Polymer Foam Process by the Residence Time Distribution Approach

In this work, we used the residence time distribution to study the polystyrene foaming during an extrusion process. The extruder associated with a gear pump is simply and quantitatively described by three continuously stirred tank reactors with recycling loops and one plug-flow reactor. The blowing...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2009-05, Vol.48 (10), p.4884-4891
Main Authors: Larochette, Mathieu, Graebling, Didier, Nasri, Djamel, Léonardi, Frédéric
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Chemical Sciences
Exact sciences and technology
Polymers
Process Design and Control
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Summary:In this work, we used the residence time distribution to study the polystyrene foaming during an extrusion process. The extruder associated with a gear pump is simply and quantitatively described by three continuously stirred tank reactors with recycling loops and one plug-flow reactor. The blowing agent used is CO2 and is obtained by thermal decomposition of a chemical blowing agent (CBA). This approach allows the optimization of the density of the foam in accordance with the CBA kinetic of decomposition.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie800836j