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Abstract
The polyol is a major component in polyurethane formulations and therefore introducing to the formulation recycled polyol (obtained during decomposition process) allows decreasing the usage of pure petrochemical components. In this work, thermoplastic polyurethanes were prepared using various mixtures of a petrochemical macrodiol poly(ethylene-butylene adipate)diol (PEBA) and a recycled glycolysate intermediate, called glycolysate polyol, in a two-step synthesis procedure with 4,4-diphenylmethane diisocyanate (MDI) and 1,4-butanediol (BD). The glycolysate polyol was obtained during glycolysis process of polyurethane elastomer using ethylene glycol as a decomposing agent. Glycolysate polyol showed a higher hydroxyl value (199 mg KOH g−1) and glass transition temperature (Tg, −50.1 °C) than pure macrodiol (PEBA). The maximum concentration of glycolysate polyol was 25 wt% over the total polyol. Synthesized polyurethanes had similar chemical structure compared to the polyurethane synthesized without glycolysate polyol, confirmed by Fourier transform infrared spectroscopy. On the one hand, higher contents of glycolysate polyol resulted in higher Tg and a slightly lower thermal stability analyzed by thermogravimetric analysis. On the other hand, improved thermomechanical and mechanical properties were obtained in polyurethanes with partial replacement of pure macrodiol.
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Authors (7)
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Tamara Calvo-Correas mgr
- University of the Basque Country Department of Chemical and Environmental Engineering
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Lorena Ugarte PhD
- University of the Basque Country Department of Chemical and Environmental Engineering
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Sanzberro Rafael
- University of the Basque Country Department of Chemical and Environmental Engineering
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M. Ángeles Corcueraa
- University of the Basque Country Department of Chemical and Environmental Engineering
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Arantxa Eceiza Prof.
- University of the Basque Country Department of Chemical and Environmental Engineering
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.polymdegradstab.2017.09.001
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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POLYMER DEGRADATION AND STABILITY
no. 144,
pages 411 - 419,
ISSN: 0141-3910 - Language:
- English
- Publication year:
- 2017
- Bibliographic description:
- Calvo-Correas T., Ugarte L., Jutrzenka Trzebiatowska P., Rafael S., Datta J., Corcueraa M., Eceiza A.: Thermoplastic polyurethanes with glycolysate intermediates from polyurethane waste recycling// POLYMER DEGRADATION AND STABILITY. -Vol. 144, (2017), s.411-419
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.polymdegradstab.2017.09.001
- Verified by:
- Gdańsk University of Technology
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