The influence of different glycerine purities on chemical recycling process of polyurethane waste and resulting semi‐products - Publikacja - MOST Wiedzy

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The influence of different glycerine purities on chemical recycling process of polyurethane waste and resulting semi‐products

Abstrakt

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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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
POLYMER INTERNATIONAL nr 65, wydanie 10, strony 1368 - 1377,
ISSN: 0959-8103
Język:
angielski
Rok wydania:
2018
Opis bibliograficzny:
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:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1002/pi.5638
Weryfikacja:
Politechnika Gdańska

wyświetlono 4 razy

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