| Titre : |
Reactive extrusion of TPU : Production of thermoplastic polyurethanes with reduced carbon footprint |
| Type de document : |
texte imprimé |
| Auteurs : |
Aleksandra Buczko, Auteur ; Andrei Holzer, Auteur ; Simon Kemmerling, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 43-45 |
| Langues : |
Anglais (eng) |
| Catégories : |
Extrusion réactive
Formaldéhyde
Formulation (Génie chimique)
Matières plastiques -- Extrusion
Polymères -- Synthèse
Polyols
Polyuréthanes
Thermoplastiques -- Extrusion
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
The simple replacement of petroleum-based components with renewable alternatives in a well-established reactive extrusion process is a promising route to more environmentally friendly thermoplastic polyurethane elastomers (TPU). However, this requires a comprehensive understanding of the interactions between chemical reactions and material flow within an extruder, as well as a thorough understanding of the effects of heat and shear on polymerization and melt processing. |
| Note de contenu : |
- Advantages of reactive extrusion
- Novel polyol in classic TPU
- From the REX concept to the pilot process
- Use of sustainable polyols in the established REX process
- Figure : Extruded strand from the continuous synthesis of a thermoplastic polyurethand, containing the new paraformaldehyde-based polyol
- Fig. 1 : Thermoplastic polyurethand synthesized using the newly developed polyol based on paraformaldehyde core. The solvent cast foil has excellent transparency
- Fig. 2 : Development steps within "Dream Polyols" : from the preliminary determination of the polyurethane formulation and the REX conditions to the implementation of newly developed components in the established processing approach
- Fig. 3 : Determining the physical and chemical causes of the instabilities in reactive extrusion allows the dosing strategy and the processing wxindow to be adjusted, resulting in a well-controlled process
- Fig. 4 : Molecular weight and dispersity of thermoplastic polyurethane produced by the REX process. The polymer performance is controlled by a simple adjustment of the material formulation |
| En ligne : |
https://drive.google.com/file/d/1hqkeI-eieybWTmsT6QqYGCLpRAbvpo94/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34637 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 110, N° 8 (2020) . - p. 43-45
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Reactive extrusion of TPU in KUNSTSTOFFE INTERNATIONAL, Vol. 110, N° 8 (2020)
