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Quantification of Colour Formation in PET Depending on SSP Residence Time,Temperature, and Oxygen Concentration |
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| Authors: | Thomas Rieckmann Katharina Besse Fabian Frei Susanne Völker |
| Affiliation: | 1. Cologne University of Applied Sciences, Betzdorfer Strasse 2, 50679 Cologne, Germany E-mail: thomas.rieckmann@fh-koeln.de;2. Cologne University of Applied Sciences, Betzdorfer Strasse 2, 50679 Cologne, Germany;3. Sika AG, Tüffenwies 16, 8048 Zurich, Switzerland;4. 42 Engineering, von-Behring-Str. 9, 34260 Kaufungen, Germany |
| Abstract: | |
| Keywords: | discolouration PET polyester recycling polymer degradation solid-state polycondensation SSP yellowing |