journal article
Open Access
Sep 20, 2024
Recycling of Polyurethane Foams via Glycolysis: A Review
Abstract
Polyurethane foams constitute highly problematic waste due to their low density and consequently large volume. Among the most promising recycling approaches, the glycolysis of polyurethane waste stands out and was extensively discussed in this article. Existing literature reviews lack a detailed analysis of glycolysis processes and a clear presentation of the most important data. However, in this review, the scientific literature on glycolysis has been thoroughly examined and updated with the latest research in the field. The article provides an overview of glycolysis methods, categorized into rigid and flexible foams, along with a review of the catalysts and process conditions employed. Additionally, this study offers a comprehensive analysis of industrial methods protected by active patents, which has not been previously explored in the literature. This detailed examination of patent information adds significant value to the review and distinguishes it from others. Furthermore, this review also aims to introduce the main types of polyurethanes and their properties. It outlines the fundamentals of recycling strategies, thermomodernization trends, and environmental considerations, highlighting the critical role of recycling in the industry. The article serves as a complete foundation for exploring new alternative methods in this field.
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Details
- Published
- Sep 20, 2024
- Vol/Issue
- 17(18)
- Pages
- 4617
- License
- View
Authors
Funding
Ministry of Science and Higher Education
Award: DWD/06/00177/2022
Wrocław University of Environmental and Life Sciences
Award: DWD/06/00177/2022
Cite This Article
Kinga Wieczorek, Przemysław Bukowski, Krystian Stawiński, et al. (2024). Recycling of Polyurethane Foams via Glycolysis: A Review. Materials, 17(18), 4617. https://doi.org/10.3390/ma17184617
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