Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 12277–12287 |
| Seitenumfang | 11 |
| Fachzeitschrift | Industrial and Engineering Chemistry Research |
| Jahrgang | 63 |
| Ausgabenummer | 28 |
| Frühes Online-Datum | 5 Juli 2024 |
| Publikationsstatus | Veröffentlicht - 17 Juli 2024 |
Abstract
Chemical chain extenders (CEs) can be used to restore the properties of recycled low-molecular-weight polyethylene terephthalate (PET). The aim of this work is to investigate the influence of the type and concentration of the CEs Joncryl and pyromellitic dianhydride (PMDA) on the viscosity and other rheological properties with a unique combination of different methods based on industrial samples originating from recycled PET bottles and trays. The resulting chain-extended thermoplastics were characterized by a combination of differential scanning calorimetry, viscometry, cone plate rheometry, pyrolysis─gas chromatography─mass spectroscopy, optical photothermal infrared spectroscopy, 13C solid-state- and 1H NMR liquid spectroscopy, and size exclusion chromatography. For a recycled PET mixture containing bottle and tray materials, our investigations have shown that a significantly better effect for chain elongation can be achieved with Joncryl compared to PMDA. This can presumably be attributed to water molecules formed during the use of PMDA, which accelerate the degradation of PET. The storage modulus values are therefore significantly higher for the samples with Joncryl compared to PMDA. The results of this study show that chain extension with Joncryl proceeds better compared to the reaction with PMDA.
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in: Industrial and Engineering Chemistry Research, Jahrgang 63, Nr. 28, 17.07.2024, S. 12277–12287.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Upgrading and Enhancement of Recycled Polyethylene Terephthalate with Chain Extenders
T2 - In-Depth Material Characterization
AU - Arstad, Bjørnar
AU - Shamsuyeva, Madina
AU - Lecinski, Jacek
AU - Olafsen, Kjell
AU - Larsen, Åge Gellein
AU - Kubowicz, Stephan
AU - Comerford, James
AU - Endres, Hans Josef
AU - Karl, Christian W.
N1 - Publisher Copyright: © 2024 The Authors. Published by American Chemical Society
PY - 2024/7/17
Y1 - 2024/7/17
N2 - Chemical chain extenders (CEs) can be used to restore the properties of recycled low-molecular-weight polyethylene terephthalate (PET). The aim of this work is to investigate the influence of the type and concentration of the CEs Joncryl and pyromellitic dianhydride (PMDA) on the viscosity and other rheological properties with a unique combination of different methods based on industrial samples originating from recycled PET bottles and trays. The resulting chain-extended thermoplastics were characterized by a combination of differential scanning calorimetry, viscometry, cone plate rheometry, pyrolysis─gas chromatography─mass spectroscopy, optical photothermal infrared spectroscopy, 13C solid-state- and 1H NMR liquid spectroscopy, and size exclusion chromatography. For a recycled PET mixture containing bottle and tray materials, our investigations have shown that a significantly better effect for chain elongation can be achieved with Joncryl compared to PMDA. This can presumably be attributed to water molecules formed during the use of PMDA, which accelerate the degradation of PET. The storage modulus values are therefore significantly higher for the samples with Joncryl compared to PMDA. The results of this study show that chain extension with Joncryl proceeds better compared to the reaction with PMDA.
AB - Chemical chain extenders (CEs) can be used to restore the properties of recycled low-molecular-weight polyethylene terephthalate (PET). The aim of this work is to investigate the influence of the type and concentration of the CEs Joncryl and pyromellitic dianhydride (PMDA) on the viscosity and other rheological properties with a unique combination of different methods based on industrial samples originating from recycled PET bottles and trays. The resulting chain-extended thermoplastics were characterized by a combination of differential scanning calorimetry, viscometry, cone plate rheometry, pyrolysis─gas chromatography─mass spectroscopy, optical photothermal infrared spectroscopy, 13C solid-state- and 1H NMR liquid spectroscopy, and size exclusion chromatography. For a recycled PET mixture containing bottle and tray materials, our investigations have shown that a significantly better effect for chain elongation can be achieved with Joncryl compared to PMDA. This can presumably be attributed to water molecules formed during the use of PMDA, which accelerate the degradation of PET. The storage modulus values are therefore significantly higher for the samples with Joncryl compared to PMDA. The results of this study show that chain extension with Joncryl proceeds better compared to the reaction with PMDA.
UR - http://www.scopus.com/inward/record.url?scp=85198219600&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.4c00018
DO - 10.1021/acs.iecr.4c00018
M3 - Article
AN - SCOPUS:85198219600
VL - 63
SP - 12277
EP - 12287
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
SN - 0888-5885
IS - 28
ER -