The supplementary materials for the article "Chemical recycling of mixed textile waste" by Erha Andini et al. provide detailed characterization and process development data for the recycling of mixed textile waste. The materials include figures and tables that cover: 1. **Feedstock Characterization**: - **Figure S1**: Characterization of 100% polyester, 100% cotton, and 50/50 PolyCotton T-shirts using TGA, FTIR, DSC, XRD, and SEM. - **Figure S2**: TGA and DTG profiles of pure textiles. - **Figure S3**: SEM micrographs of pure textiles. - **Table S1**: Moisture content of pure textiles. - **Figure S4**: Effect of glycolysis on polyester and cotton using ZnO. - **Figure S5**: SEM micrographs of 50/50 PolyCotton T-shirt residues after MW-assisted glycolysis. - **Table S2**: XRF of textile samples. 2. **Process Development and Techno-Economic Analysis**: - **Figure S7**: Polyester glycolysis in the presence of cotton, nylon, and spandex. - **Figure S8**: Effect of glycolysis on nylon and spandex. - **Figure S9**: Catalyst effect on nylon and spandex. - **Figure S10**: FTIR of 90% nylon/10% spandex remaining solids upon glycolysis. - **Figure S11**: Proposed process for recycling real mixed textile waste. - **Figure S12**: Characterization of recovered BHET after 1st crystallization. - **Figure S13**: BHET purification. - **Figure S14**: Detection of spandex monomers in product solution by LCMS. - **Figure S15**: Characterization of recovered cotton. - **Figure S16**: Characterization of recovered nylon. - **Figure S17**: Spandex monomers recovery by vacuum distillation. - **Figure S18**: Process flowsheet of mixed textile waste recycling. - **Table S3**: Flow rates for process streams. - **Table S4**: Overall cost distribution for two cases. These supplementary materials provide comprehensive insights into the chemical recycling process, including the characterization of feedstocks, the effectiveness of the recycling process, and the techno-economic analysis of the recycling technology.The supplementary materials for the article "Chemical recycling of mixed textile waste" by Erha Andini et al. provide detailed characterization and process development data for the recycling of mixed textile waste. The materials include figures and tables that cover: 1. **Feedstock Characterization**: - **Figure S1**: Characterization of 100% polyester, 100% cotton, and 50/50 PolyCotton T-shirts using TGA, FTIR, DSC, XRD, and SEM. - **Figure S2**: TGA and DTG profiles of pure textiles. - **Figure S3**: SEM micrographs of pure textiles. - **Table S1**: Moisture content of pure textiles. - **Figure S4**: Effect of glycolysis on polyester and cotton using ZnO. - **Figure S5**: SEM micrographs of 50/50 PolyCotton T-shirt residues after MW-assisted glycolysis. - **Table S2**: XRF of textile samples. 2. **Process Development and Techno-Economic Analysis**: - **Figure S7**: Polyester glycolysis in the presence of cotton, nylon, and spandex. - **Figure S8**: Effect of glycolysis on nylon and spandex. - **Figure S9**: Catalyst effect on nylon and spandex. - **Figure S10**: FTIR of 90% nylon/10% spandex remaining solids upon glycolysis. - **Figure S11**: Proposed process for recycling real mixed textile waste. - **Figure S12**: Characterization of recovered BHET after 1st crystallization. - **Figure S13**: BHET purification. - **Figure S14**: Detection of spandex monomers in product solution by LCMS. - **Figure S15**: Characterization of recovered cotton. - **Figure S16**: Characterization of recovered nylon. - **Figure S17**: Spandex monomers recovery by vacuum distillation. - **Figure S18**: Process flowsheet of mixed textile waste recycling. - **Table S3**: Flow rates for process streams. - **Table S4**: Overall cost distribution for two cases. These supplementary materials provide comprehensive insights into the chemical recycling process, including the characterization of feedstocks, the effectiveness of the recycling process, and the techno-economic analysis of the recycling technology.