OPTIMISATION OF EXTRUDED POLYMER FOAM BY THE RESIDENT TIME DISTRIBUTION APPROACH

Frédéric Léonardi (1) , Mathieu Larochette (1) , Djamel Nasri (2) , Didier Graebling (1)

1 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux
2 LFCR - Laboratoire des Fluides Complexes et leurs Réservoirs

In this work, we used the Residence Time Distribution (RTD) to study the polystyrene foaming during an extrusion process. The extruder associated with a gear pump is simply and quantitatively described by three continuoustly stirred tank reactors with recycling loops and one plug-flow reactor. The blowing agent used is CO2 and its obtained by ther- mal decomposition of a chemical blowing agent (CBA). This approach allows to optimize the density of the foam in accordance with the CBA kinetic of decomposition

Domains: Materials Science [cond-mat.mtrl-sci]

Frédéric Léonardi, Mathieu Larochette, Djamel Nasri, Didier Graebling. OPTIMISATION OF EXTRUDED POLYMER FOAM BY THE RESIDENT TIME DISTRIBUTION APPROACH. the Polymer Processing Society 24th Annual Meeting, Jun 2008, salerno, Italy. ⟨inria-00342785⟩