| Titre : |
Turning old into new : A robust continuous process for the chemical recycling of polystyrene |
| Type de document : |
texte imprimé |
| Auteurs : |
Christian Hopmann, Auteur ; Philipp Schäfer, Auteur ; Nils Dauber, Auteur ; Martin Facklam, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 40-43 |
| Langues : |
Anglais (eng) |
| Catégories : |
Caractérisation
Dépolymérisation
Extrusion réactive
Matières plastiques -- Recyclage
Polystyrène
Recyclage chimique
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Due to their good feed characteristics and self-cleaning properties, twin-screw extruders enable even contaminated post-consumer polystyrene to be depolymerized continuously and efficiently. This opens up a promising recycling route in terms of industrial implementation via renewed polymer synthesis to produce plastic granules with a quality approaching that of virgin material. |
| Note de contenu : |
- Chemical recycling of polystyrene
- Continuous depolymerization of polystyrene in a twin-screw extruder
- Influence of screw speed and material composition
- Figure : Continuous process in a twin-screw extruder: For industrial implementation of chemical recycling of polystyrene, a reactor technology is required that allows high throughput rates and also processes heavily contaminated post-consumer material continuously with high process stability
- Fig. 1 : Depolymerization mechanism of polystyrene to styrene (in brackets: boiling temperatures)
- Fig. 2 : Characterization of polymer degradation based on melt mass flow rate and glass transition temperature as a function of material composition and screw speed
- Fig. 3 : Condensate yield as a function of material composi-tion and screw speed
- Fig. 4 : Composition of the condensates depending on the input materials |
| En ligne : |
https://drive.google.com/file/d/1UyWGZNryR3e0e1kj_8XOAHTRMYqDmYyF/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34828 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 110, N° 9 (2020) . - p. 40-43
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Turning old into new in KUNSTSTOFFE INTERNATIONAL, Vol. 110, N° 9 (2020)
