Titre : |
Recyclates on the test bench : Incoming goods inspection of recyclates ensures reject minimization |
Type de document : |
texte imprimé |
Année de publication : |
2021 |
Article en page(s) : |
p. 36-39 |
Langues : |
Anglais (eng) |
Catégories : |
Déchets -- Réduction Etat fondu (matériaux) Matières plastiques -- Recyclage Mesure Polystyrène Rhéologie Viscosité
|
Index. décimale : |
668.4 Plastiques, vinyles |
Résumé : |
Recyclates usually show altered properties compared to virgin plastics due to initial processing and influences during the product’s life. This often leads to problems during processing. Especially in melt-expanding processes such as injection stretch blow molding, blow molding, film blow molding or thermoforming a fast incoming goods inspection method for recyclates is important. The Institut für Kunststofftechnik (IKT) at the University of Stuttgart, Germany, has developed a new test method for this purpose. |
Note de contenu : |
- Influences of recycling on the material properties
- Novel test method for recyclates at the IKT
- Measuring the melt extensibility of recyclates
- Fig. 1. The new and fast test method analyzes and identifies the melt extensibility of recyclates prior processing
- Fig. 2. Influence of recycling cycles on the shear viscosity of polystyrene at 220 °C
- Fig. 3. Schematic sequence of the novel test method to analyze and identify the melt extensibility of recycled plastics
- Fig. 4. The advantages of the new test method lie in the fast and simple handling of the test procedure
- Fig. 5. Time sequence and development of the melt tube during inflation of PS virgin material at 240 °C
- Fig. 6. Pressure dependency analysis of PS virgin material at 240 °C
- Fig. 7. Behavior of melt extensibility during inflation at 0.6 bar and 220 °C |
En ligne : |
https://drive.google.com/file/d/1bdtTvWJZOdYQFoDhyq55NcEMu6p-kd3L/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35740 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 4 (2021) . - p. 36-39