Skip to Main content Skip to Navigation
Journal articles

Design and Multicriteria Optimization of a Two-Stage Reactive Extrusion Process for the Synthesis of Thermoplastic Polyurethanes

Abstract : This paper presents the implementation of two multicriteria optimization methods based on different approaches, namely, Rough Set Method (RSM) and Net Flow Method (NFM), to the manufacture by reactive extrusion of linear thermoplastic polyurethanes (TPUs), appropriate for medical applications. A preliminary study allowed determining the process operating conditions for which the polymerization time and the average residence time of the reactants in the extruder are of the same order of magnitude. Prior to the optimization, a neural network model able to predict with acceptable accuracy the effect of the operating conditions on the output process variables, was constructed and validated. This model was then used to determine, using Pareto's concept, a set of non-dominated solutions constituting Pareto's domain. These solutions were then ranked according to the preferences of a decision maker using NFM and RSM. This allowed providing the 10% highest ranked solutions of Pareto's domain and proposing a set of optimal operating conditions for the production, with the lowest energy consumption, of TPUs with targeted properties and high purity. Experimental validation runs carried out under similar operating conditions gave rise to criteria values confirming the su- perior performance of NFM, without rejecting, at the same time, the values obtained using RSM
Complete list of metadatas

https://hal.univ-lorraine.fr/hal-02140166
Contributor : Dimitrios Meimaroglou <>
Submitted on : Monday, May 27, 2019 - 9:40:35 AM
Last modification on : Wednesday, March 25, 2020 - 5:54:01 PM

Links full text

Identifiers

Collections

Citation

Sandrine Hoppe, Dimitrios Meimaroglou, Mauricio Camargo, Christian Fonteix, Fernand Pla. Design and Multicriteria Optimization of a Two-Stage Reactive Extrusion Process for the Synthesis of Thermoplastic Polyurethanes. Engineering, Scientific Research, 2012, 04 (09), pp.497-514. ⟨10.4236/eng.2012.49065⟩. ⟨hal-02140166⟩

Share

Metrics

Record views

317