| Titre : |
Investigation of the interfacial instabilities in the coextrusion flow of PE and PS |
| Type de document : |
texte imprimé |
| Auteurs : |
Rudy Valette, Auteur ; P. Laure, Auteur ; Y. Demay, Auteur ; Jean-François Agassant, Auteur |
| Année de publication : |
2003 |
| Article en page(s) : |
p. 171-178 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
668.9 Polymères |
| Résumé : |
The interface instability of the coextrusion flow of a polyethylene and a polystyrene is experimentally studied with industrial and laboratory equipments for various flow rates and temperature. Stable and unstable coextrusion conditions are identified as a function of flow rate ratio, shear rate and temperature. It is found that temperature and flow rate ratio are the most relevant parameters. Experimental results are then compared with stability analysis assuming White-Metzner constitutive equations. Agreement is fair at temperatures of 180°C and 200°C. However the longwave stability analysis is not sufficient to predict all experimental data. |
| DOI : |
10.3139/217.1731 |
| En ligne : |
https://drive.google.com/file/d/13SRkDUoR_qFJ2A1uIpl64sJIbmCI9xBz/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3308 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XVIII, N° 2 (06/2003) . - p. 171-178
Aller sur edunet
Accueil
Investigation of the interfacial instabilities in the coextrusion flow of PE and PS in INTERNATIONAL POLYMER PROCESSING, Vol. XVIII, N° 2 (06/2003)
