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The influence of different glycerine purities on chemical recycling process of polyurethane waste and resulting semi‐products
Abstract
Chemical recycling is the most favourable recycling method due to the possibility of polyol recovery. This work is dedicatedto the utilisation of crude glycerine and polyurethane waste. It aims at determining the impact of the use of glycerine fromthe production of biodiesel with various degrees of purity as a cleavage agent on the decomposition process of polyurethanefoam. The influence of glycerine purit y on the chemical structure of recycling products was analysed using Fourier transforminfrared and1H NMR spectroscopies and gel permeation chromatography. Hydroxyl and amine values were determined, andrheological measurements were performed. Glycerolysates showed minor structural differences due to the presence of aminegroups and exhibited heterogeneous structure compared to original polyols. The ones obtained in decomposition using 84and 99.5% glycerine had a lower viscosity below 0.45 Pa s at 50∘C and higher hydroxyl number of 183 and 220 mg KOH g−1,respectively, compared to the ones obtained with glycerine purity of 40 and 62% due to a different chemical struc ture. All ofthe products of decomposition were defined as non-Newtonian fluids, where viscosity depended on the shear rate. Selectedglycerolysates were used in the production of cast polyurethanes with satisfactory mechanical properties.
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- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1002/pi.5638
- License
- Copyright (2018 John Wiley & Sons, Inc)
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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POLYMER INTERNATIONAL
no. 65,
edition 10,
pages 1368 - 1377,
ISSN: 0959-8103 - Language:
- English
- Publication year:
- 2018
- Bibliographic description:
- Jutrzenka Trzebiatowska P., Dzierbicka A., Kamińska N., Datta J.: The influence of different glycerine purities on chemical recycling process of polyurethane waste and resulting semi‐products// POLYMER INTERNATIONAL. -Vol. 65, iss. 10 (2018), s.1368-1377
- DOI:
- Digital Object Identifier (open in new tab) 10.1002/pi.5638
- Verified by:
- Gdańsk University of Technology
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