Johanna Langwieser, Jörg Fischer,
"Investigation of the Impact of Single and Double Filtration Systems on Post-Consumer PE Film Waste"
, in Polymers, Vol. 16, Nummer 16, 8-2024
Original Titel:
Investigation of the Impact of Single and Double Filtration Systems on Post-Consumer PE Film Waste
Sprache des Titels:
Englisch
Original Kurzfassung:
Due to the diversity of plastic film waste streams available on the market and the associated
variety of contaminants? size and number, the use of melt filtration is necessary. Currently, single
and double filtration systems are state of the art in the plastic recycling industry, depending on
the application of the produced post-consumer recyclate (PCR). Using PCR for thin films demands
small contamination sizes, which are easier to reach using a second filtration step. In the case of
relatively clean post-consumer input materials, it must be investigated whether the additional load
from the second filter has a counterproductive effect on the material and whether single filtration
would be sufficient. For this paper, polyethylene (PE) film waste stemming from a separate postconsumer
collection in Austria was processed using an industrial-sized recycling machine with
different combinations of filter sizes and systems. Melt flow rate (MFR), ash content, oxidation onset
temperature (OOT), and optical contaminant detection were measured to investigate the influence of
single and double filtration systems. The investigation showed that, even though the contamination
amount and size were reduced, the second filter had a distinct effect on specific properties.
Forschungs-