[article]
| Titre : |
Numerical and physical modeling of polymer crystallization : Part II : Isothermal and non-isothermal crystallization kinetics of a polypropylene in 2 dimensions - Experiments and simulation |
| Type de document : |
texte imprimé |
| Auteurs : |
B. Monasse, Auteur ; J. Smirnova, Auteur ; Jean-Marc Haudin, Auteur ; J.-L. Chenot, Auteur |
| Année de publication : |
2004 |
| Article en page(s) : |
p. 275-286 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
668.9 Polymères |
| Résumé : |
Crystallization of thin polypropylene films was performed in isothermal, constant cooling-rate and mixed conditions. The experiments were first analyzed using the classical procedures based on simplified forms (Avrami, Ozawa) of the general Kolmogoroff-Avrami-Evans (KAE) theory. These analyses, which can be applied over an unusually wide transformation range, show that the crystallizations are actually 2 D. Then, a procedure has been established for the determination of the nucleation and growth parameters involved in the theoretical model presented in the first paper of this series. These parameters have been introduced into the model in order to predict the crystallization behavior in isothermal, constant-cooling-rate and mixed-conditions: transformed fraction, number of activated nuclei, final size distribution of semi-crystalline entities. A very good agreement is generally found between predictions and experimental results. |
| DOI : |
10.3139/217.1830 |
| En ligne : |
https://drive.google.com/file/d/1i3qUhiTWRDJ104QkMUH9AnVbQLVZbLre/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3111 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XIX, N° 3 (09/2004) . - p. 275-286
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Numerical and physical modeling of polymer crystallization in INTERNATIONAL POLYMER PROCESSING, Vol. XIX, N° 3 (09/2004)
