Titre : |
From waste collector to the plastic recycler : Technical answers to world political changes in film recycling |
Type de document : |
texte imprimé |
Auteurs : |
Reinhard Bauer, Auteur |
Année de publication : |
2019 |
Article en page(s) : |
p. 53-55 |
Langues : |
Anglais (eng) |
Catégories : |
Emballages en matières plastiques Extrudeuse bi-vis Extrudeuse rotative Films plastiques Granulation Matières plastiques -- Extrusion Matières plastiques -- Recyclage Polyéthylène
|
Index. décimale : |
668.4 Plastiques, vinyles |
Résumé : |
Like plastics manufacturing and processing, the recycling of plastic products requires specialization to be efficient. Accordingly, a Dutch company has dedicated itself entirely to the recycling of agricultural and packaging films – and invested in a machine technology, which was found along tortuous ways. |
Note de contenu : |
- The export of plastic waste to china came on a halt
- Problems drive you smart
- Specialization as a success factor
- Expansion of production capacity
- Fig. 1 : At the heart of the MAS extrusion technology is the conical twin-screw extruder with co-rotating screws developed by its founder Helmuth Schulz. Advantages of this type of extruder are the large feed opening, which allows the efficient intake of raw materials with low bulk density, as well as the low-pressure plasticization - both prerequisites for gentle recycling.
- Fig. 2 : From bale to granulate: in the sorting process, foreign material is first removed from the dissolved film bales, then the films are separated according to color class or material quality. This is used to produce unmixed bales. Cutting mills process them into flakes, wich are then fed batch-wise to the DRD dry cleaners to remove granular soiling and moisture. The cleaned and dried foil flakes pass through buffer storage to the cascade extruders. Stations vivible in the picture are the single-screw extruder, the fine filter and the granulation.
- Fig. 3 : Reuse in blown film production: Caroda Polymer Recovery processes around 35,000t of agricultural films and pallet shrink films per year into gray, black and tea-colored polyethylene re-granulates. |
En ligne : |
https://drive.google.com/file/d/1kH8qLpw6ITk9nj_RiXEfZFiRm7vqUrZQ/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32154 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 109, N° 3 (03/2019) . - p. 53-55