| Titre : |
Flow-induced crystallization of polyamide-6 |
| Type de document : |
texte imprimé |
| Auteurs : |
R. Massaro, Auteur ; P. Roozemond, Auteur ; M. D'Haese, Auteur ; Peter Van Puivelde, Auteur |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 327-335 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Cristallisation
Polyamide 6
Rhéologie
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Flow-induced crystallization has been widely studied for a variety of polymers with the main focus on polyolefins. In this work, research has been conducted on the flow-induced crystallization of another important class of polymers, namely polyamides. Different polyamides-6 with varying molecular weight have been studied. At relatively modest values of shear rate, rheology has been used to study the kinetics of flow-induced crystallization. Typical scaling relations based on the longest relaxation time and the Rouse time – usually obtained for polyolefins – are tested for the polyamides under investigation in order to identify the different regimes of flow-induced crystallization. At high shear rates, a correct rheological signal was impossible to collect. However, the rheometer was used in this case to prepare the sample to be studied ex-situ by Wide Angle X-ray Scattering experiments to determine the onset shear rate for the formation of highly oriented shish-kebab structures. |
| Note de contenu : |
- Basic rheological characterization and determination of transition times
- Quiescent crystallization
- Flow-induced crystallization |
| DOI : |
10.3139/217.3524 |
| En ligne : |
https://www.degruyter.com/document/doi/10.3139/217.3524/pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30801 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXIII, N° 3 (07/2018) . - p. 327-335
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