Depolymerization of rigid polyurethane waste by catalytic glycolysis with diethylene glycol
Glycolysis of rigid polyurethane (PU) waste has been investigated to check the possibility of the recycling of polyol from industrial furniture production. The glycolysis reaction was performed at a constant temperature. Diethylene glycol and sodium acetate were used as the solvent and catalyst, res...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-04-01
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| Series: | South African Journal of Chemical Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1026918525000095 |
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| author | Oleksandr S. Ivashchuk Wolodymyr Ya. Suprun Volodymyr M. Atamanyuk Volodymyr S. Kurhanskyi Andriy O. Nahurskyi Roman A. Chyzhovych |
| author_facet | Oleksandr S. Ivashchuk Wolodymyr Ya. Suprun Volodymyr M. Atamanyuk Volodymyr S. Kurhanskyi Andriy O. Nahurskyi Roman A. Chyzhovych |
| author_sort | Oleksandr S. Ivashchuk |
| collection | DOAJ |
| description | Glycolysis of rigid polyurethane (PU) waste has been investigated to check the possibility of the recycling of polyol from industrial furniture production. The glycolysis reaction was performed at a constant temperature. Diethylene glycol and sodium acetate were used as the solvent and catalyst, respectively. The recovered polyols were characterized by hydroxyl value (HV), dynamic viscosity, and FTIR (Fourier-transform infrared spectroscopy) spectroscopy. The HV of glycolysis products was about 200–800 mg KOH g-1. The HV depends on the applied DEG:PU mass ratio and on the reaction's time. The glycolysis product containing recovered polyols was directly used without purification for further PU synthesis. The recovered PU materials were investigated using TGA (thermogravimetric analysis) and SEM (scanning electron microscopy) microscopy. |
| format | Article |
| id | doaj-art-0d203ce76fa54c8b8b5892d0a377158d |
| institution | Kabale University |
| issn | 1026-9185 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | South African Journal of Chemical Engineering |
| spelling | doaj-art-0d203ce76fa54c8b8b5892d0a377158d2025-01-23T05:26:18ZengElsevierSouth African Journal of Chemical Engineering1026-91852025-04-01526167Depolymerization of rigid polyurethane waste by catalytic glycolysis with diethylene glycolOleksandr S. Ivashchuk0Wolodymyr Ya. Suprun1Volodymyr M. Atamanyuk2Volodymyr S. Kurhanskyi3Andriy O. Nahurskyi4Roman A. Chyzhovych5Department of Chemical Engineering, Lviv Polytechnic National University, Lviv, Ukraine; Corresponding author.Institute of Chemical Technology, Martin-Luther University, Halle-Wittenberg, GermanyDepartment of Chemical Engineering, Lviv Polytechnic National University, Lviv, UkrainePolikom LTD, Kalush, UkraineDepartment of Chemical Engineering, Lviv Polytechnic National University, Lviv, UkraineDepartment of Chemical Engineering, Lviv Polytechnic National University, Lviv, UkraineGlycolysis of rigid polyurethane (PU) waste has been investigated to check the possibility of the recycling of polyol from industrial furniture production. The glycolysis reaction was performed at a constant temperature. Diethylene glycol and sodium acetate were used as the solvent and catalyst, respectively. The recovered polyols were characterized by hydroxyl value (HV), dynamic viscosity, and FTIR (Fourier-transform infrared spectroscopy) spectroscopy. The HV of glycolysis products was about 200–800 mg KOH g-1. The HV depends on the applied DEG:PU mass ratio and on the reaction's time. The glycolysis product containing recovered polyols was directly used without purification for further PU synthesis. The recovered PU materials were investigated using TGA (thermogravimetric analysis) and SEM (scanning electron microscopy) microscopy.http://www.sciencedirect.com/science/article/pii/S1026918525000095PolyurethaneWasteGlycolysisDiethylene glycolRecycling |
| spellingShingle | Oleksandr S. Ivashchuk Wolodymyr Ya. Suprun Volodymyr M. Atamanyuk Volodymyr S. Kurhanskyi Andriy O. Nahurskyi Roman A. Chyzhovych Depolymerization of rigid polyurethane waste by catalytic glycolysis with diethylene glycol South African Journal of Chemical Engineering Polyurethane Waste Glycolysis Diethylene glycol Recycling |
| title | Depolymerization of rigid polyurethane waste by catalytic glycolysis with diethylene glycol |
| title_full | Depolymerization of rigid polyurethane waste by catalytic glycolysis with diethylene glycol |
| title_fullStr | Depolymerization of rigid polyurethane waste by catalytic glycolysis with diethylene glycol |
| title_full_unstemmed | Depolymerization of rigid polyurethane waste by catalytic glycolysis with diethylene glycol |
| title_short | Depolymerization of rigid polyurethane waste by catalytic glycolysis with diethylene glycol |
| title_sort | depolymerization of rigid polyurethane waste by catalytic glycolysis with diethylene glycol |
| topic | Polyurethane Waste Glycolysis Diethylene glycol Recycling |
| url | http://www.sciencedirect.com/science/article/pii/S1026918525000095 |
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