| Titre : |
Different viscosities combined in a material-friendly way : Higher product quality at lower costs in a continuous process |
| Type de document : |
texte imprimé |
| Auteurs : |
Marc Waffenschmidt, Auteur ; Holger Lange, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 38-39 |
| Langues : |
Anglais (eng) |
| Catégories : |
Bitume
Caoutchouc
Compoundage
Extrudeuse à rouleau planétaire
Matières plastiques -- Extrusion
Mélanges (chimie)
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
The challenge of compounding a rubber-bitumen mixture was to bring the raw materials together in a way that was gentle on the material despite their very different viscosities. The material is to be melted, mixed, -dispersed, homogenized, degassed and discharged under controlled temperature conditions in a consistently high quality and viscosity. With the planetary roller extruder, Entex has transferred the manufacturing process from a batch process to a continuous process. |
| Note de contenu : |
- Continuous preparation instead of batch process
- Controlled temperature conditions for consistent quality
- Fig. 1 : Roller barrel module of the planetary roller extruder: whereas twin-screw extruders have only one kneading gap over the entire length of the processing section, planetary roller extruders have two kneading gaps per planetary spindle, in which the compound is mixed, frictionally mixed and rolled
- Fig. 2 : Plant design for continuous preparation of the mixture. Bitumen is supplied at two points to achieve mastification (breaking up the molecular chains)
- Fig. 3 : Section through differently prepared rubber-bitumen products : on the left, the mixture produced on the basis of rubber powder from a conventional compounder, on the right the mixture produced on the basis of rubber granulate in the planetary roller extruder
- Fig. 4 : Rubber-bitumen compound prepared with the planetary roller extruder |
| En ligne : |
https://drive.google.com/file/d/1LTuNoScoXBqb2O3A_TuCSQF0Db8KKbkT/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34827 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 110, N° 9 (2020) . - p. 38-39
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Formulation et formation, 6 / Poitiers : Service enseignements supérieurs-didactique de la chimie (1999)
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