Journal
PROCEEDINGS OF PPS-32: THE 32ND INTERNATIONAL CONFERENCE OF THE POLYMER PROCESSING SOCIETY
Volume 1914, Issue -, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.5016744
Keywords
Extrusion; Polymer Recycling; Melt Filtration; Screen Changer
Categories
Funding
- Erema Engineering Recycling Maschinen mind Anlagen Ges.m.b.H
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This paper addresses the performance improvement of a double-cavity piston screen changer used for processing slightly contaminated in-house recycling material. Rheological optimization of the flow geometry based on analytical calculations and numerical CFL) simulations in order to increase its self-cleaning capacity, decrease the residence time of the melt in the titter and reduce pressure drops, thus enabling gentle processing of a variety of thermoplastic polymers. Various analytical calculations of the overall pressure drop were performed and experimentally verified for a range of in-house recycling materials, throughputs and filter screen types.
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