Modeling of a cokneader for the manufacturing of composite materials having absorbent properties at ultra-high-frequency waves. Part 1: Modeling of flow from residence time distribution investigations

Abstract : The purpose of this study is to gain better understanding of' flow patterns and mjxing conditions in a particular single-screw extruder: the Buss Cokneader. To this end, the residence time distribution IFWD) of the polymer was investigated experimentally for different combinations of the operating variables (i.e. feed rate, screw rotation speed). The measurement of RTD used a standard stimulus-response technique. Two kinds of tracer were used: h e anthracene and anthracene grafted on the polymer. It was shown that only the second could characterize the actual flow of the polymer in the extruder. It does not perturb the flow and has the same rheological behavior as the studied fluid. Thanks to the fiTD data, a model of the extruder based on the combination of ideal reactors, such as contiuous stirred tank reactors or plug flow reactors, was finally set up. The establishment of relationships between model parameters and extrusion conditions allowed the: prediction of RTD with good agreement.
Type de document :
Article dans une revue
Polymer Engineering and Science, Wiley-Blackwell, 2002, 42 (4), pp.771 - 780. 〈10.1002/pen.10989〉
Liste complète des métadonnées

Littérature citée [16 références]  Voir  Masquer  Télécharger

https://hal.univ-lorraine.fr/hal-01629323
Contributeur : Sandrine Hoppe <>
Soumis le : mardi 7 novembre 2017 - 14:10:03
Dernière modification le : jeudi 11 janvier 2018 - 06:25:27

Identifiants

Collections

Citation

Sandrine Hoppe, C. Detrez, F. Pla. Modeling of a cokneader for the manufacturing of composite materials having absorbent properties at ultra-high-frequency waves. Part 1: Modeling of flow from residence time distribution investigations. Polymer Engineering and Science, Wiley-Blackwell, 2002, 42 (4), pp.771 - 780. 〈10.1002/pen.10989〉. 〈hal-01629323〉

Partager

Métriques

Consultations de la notice

103