| Titre : |
Melting of polymer blends in co-rotating twin screw extruders : Part II : Theoretical derivations |
| Type de document : |
texte imprimé |
| Auteurs : |
H. Potente, Auteur ; Martin Bastian, Auteur ; J. Flecke, Auteur ; D. Schramm, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 131-142 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
668.9 Polymères |
| Résumé : |
Part II of the publication describes a model for calculating the melting of polymer blends which has been implemented in the SIGMA simulation software for the design of co-rotating twin screw extruders. The model is based on the findings discussed in Part I and makes it possible to calculate the temperature progression in the solids conveying section and during the subsequent melting process for binary incompatible polymer combinations. The two material components are observed in parallel during the melting process, and the respective degrees of melting over the length of the screw are calculated. The properties of the melt phase, which forma from both components, are calculated with mixing rules implemented in the program. The calculations supply the melting profiles for both components, thereby permitting a comprehensive analysis of the melting of binary polymer combinations. The results additionally form the basis of a calculation to estimate the morphology development of polymer blends in the melting section of the extruder.
Part III of the report looks into a means of investigating the melting of binary polymer combinations, and the results of experimental investigations into polypropylene/polyamide blends are discussed. The simulation calculations are compared with the results of experimental studies in order to verify the model presented in this part of the publication. |
| Note de contenu : |
- Theoretical treatment of the melting of polymer blends
- Starting parameters for the melting profile calculation
- Solids content at the start of melting
- Solids temperature at the start of melting
- Mean melt temperature at the start of melting
- The melting process in the production of polymer blends
- The melting of polymer particles
- Temperature development of the melt
- Calculating the material parameters of the melt with simple mixing rules
- Simulation of the melting process in blend production
- Calculation result |
| DOI : |
10.3139/217.1633 |
| En ligne : |
https://drive.google.com/file/d/1dkpfoTVXtDmzj39-LKIl1atia69TTh2O/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15893 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XVI, N° 2 (06/2001) . - p. 131-142
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