| Titre : |
Non-isothermal viscoelastic melt spinning with stress-induced crystallization : numerical simulation and parametric analysis |
| Type de document : |
texte imprimé |
| Auteurs : |
Rui Wang, Auteur ; Kuangrong Hao, Auteur ; Huaping Wang, Auteur ; Chaosheng Wang, Auteur ; Lei Chen, Auteur ; Ruimin Xie, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 25-37 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Caractérisation
Cristallisation
Extrusion filage
Phan-Thien et Tanner, Modèle de
Polyéthylène téréphtalate
Polymères -- Propriétés physiques
Rhéologie
Simulation par ordinateur
Viscoélasticité
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
This paper considers a model of melt spinning with stress-induced crystallization, where the melt uses the Phan Thien-Tanner model, and the solid adopts the rubber elastic model. We design a computationally efficient algorithm for solving the model. The temperature, radius, and birefringence profile in low-speed and high-speed spun PET fibers were predicted and compared with the published experimental data. The simulation results are consistent with the experimental data from the literature. Then a parametric analysis is conducted to investigate the effects of operating conditions on the spinning dynamics and reveal the relationship between the operating conditions and the final properties. The change of take-up speed has a significant influence on the crystallinity and birefringence of the fiber./ |
| Note de contenu : |
- MODELING OF MELT SPINNING : Description of the melt spinning process - Basic equations - The PTT constitutive equations - Rubber elasticity model for the semi-crystalline fiber - non-isothermal stress-induced crystallization - Birefringence during crystallization
- RHEOLOGICAL CHARACTERIZATION OF POLYESTER
- NUMERICAL SOLUTION TECHNIQUE
- EXPERIMENTAL VERIFICATION AND ANALYSIS
- PARAMETRIC ANALYSIS : Effect of take-up speed - Effect of initial melt temperature - Effect of air temperature - Effect of air speed
- Table 1 : Discrete relaxation time spectrum at temperatures 270, 300, and 310°C for polyester with PTT model parameters
- Table 2 : Physical and rheological properties of PEt
- Table 3 : Parameters of fiber spinning trial run with polyester |
| En ligne : |
https://drive.google.com/file/d/1D0G0EaIBKeOw1Zamua0psI99_jlwPNhD/view?usp=share [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38438 |
in INTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 1 (2022) . - p. 25-37
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