A closed recycling cycle - Now ! / Philipp Schäfer in KUNSTSTOFFE INTERNATIONAL, Vol. 109, N° 12 (12/2019)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 109, N° 12 (12/2019) . - p. 23-28 Titre : A closed recycling cycle - Now ! : The technology to close the plastic cycle exists Type de document : texte imprimé Auteurs : Philipp Schäfer, Auteur Année de publication : 2019 Article en page(s) : p. 23-28 Langues : Anglais (eng) Catégories : Capteurs (technologie) Dispositifs de tri Filtration Fragmentation Innovations Matières plastiques -- Recyclage -- Appareils et matériel Nettoyage Salons professionnels Séchage Index. décimale : 668.4 Plastiques, vinyles Résumé : As expected, the K 2019 displayed a wide range of machine technology and complete system solutions for plastics recycling. At least since the trade fair in Düsseldorf, Germany, it has become obvious that industry today can offer solutions for closing the plastic cycle. Note de contenu : - Sensor technology fo detecting plastics - Comminution, washing and drying - Filter systems remove contaminants*- Processing of recyclate - Fig. 1 : Innosort Flake allows simultaneous sorting by color and polymer type - Fig. 2 : Also black colored plastics can be sorted with the Powersort 360 with a throughput of 10t/h - Fig. 3 : Polymer-Line : a compact granulator for the economic comminution of large volume and bulky plastics - Fig. 4 : Micromat 1500 : a new model in the field of stationary universal shredders - Fig. 5 : MetaPure : a washing module for PET flakes - Fig. 6 : IR-clean : individually adjustable length of infrared rotary drum for processing PET flakes - Fig. 7 : Single and twin screw metering units are available in gravimetric and volumetric versions - Fig. 8 : Melt filtration : the cyclindrical head of the HiCon R-type with knives ensures a uniform load when recycling heavily contaminated plastics - Fig. 9 : Twin screw extruder ZSK Mc for high throughputs in the treatmnt of recycled materials - Fig. 10 : The ZeroWastePro is specially designed for the in-house recycling of PE and PP foils En ligne : https://drive.google.com/file/d/1lxRlUulcvx9LZRXcperNEpejEK0FZvMB/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33714 [article]

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Turning old into new / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 110, N° 9 (2020)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 110, N° 9 (2020) . - p. 40-43 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 [article]

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