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Title Monomer Recycling and Repolymerization of Post-Consumer Polyester Textiles
ID_Doc 23868
Authors Kirstein, M; Lücking, C; Biermann, L; Brepohl, E; Salikov, V; Eichert, C; Paschetag, M; Scholl, S
Title Monomer Recycling and Repolymerization of Post-Consumer Polyester Textiles
Year 2023
Published Chemie Ingenieur Technik, 95, 8
Abstract Due to the presence of dyes and additives, textile recycling is challenging, therefore the majority of textile waste is downcycled to low-value products, incinerated or landfilled. In this study, a continuous depolymerization of post-consumer polyester textiles was conducted by alkaline hydrolysis. The degree of depolymerization was assessed and found to be 94 %. After recovering and analyzing the terephthalic acid and ethylene glycol the monomers were successfully polymerized to regain a food grade quality recycled polyethylene terephthalate. The presented recycling approach allows a closed-loop recycling of textiles.
PDF https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/cite.202200197

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