{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["006:55"], "contactPoint": {"fn": "Charlotte Wentz", "hasEmail": "mailto:charlotte.wentz@nist.gov"}, "description": "The increasing amounts of discarded textiles represent a potentially valuable resource that could be reclaimed. This work underscores the significance of advancing chemical recycling techniques for multi-component fabrics under mild reaction conditions. We present a method for nondestructive recovery of cotton (C), elastane, and nylon from polyester (polyethylene terephthalate (P)) textile blends through alkaline hydrolysis, supported with a phase-transfer catalyst. Consistent reaction conditions were maintained while evaluating various pre-consumer blends to assess their impact on the depolymerization of P component into terephthalic acid (TPA). The average TPA yield (by mass) exceeded 93.9 \u00b1 2.79 % for pre-consumer materials and 89.5 \u00b1 3.14 % for post-consumer materials. This work also explored the reuse potential of cotton recovered from the P:C textiles and examined any alterations in tensile strength post-hydrolysis. The average C recovery (by mass) exceeded 95.9 \u00b1 0.784 %. Extensive material characterization for all components of the system was conducted. This research paves the way for a deeper understanding of the potential contamination by small molecules, and the quality of unreacted fibers within this mild alkaline chemical process.", "distribution": [{"description": "ReadMe File associated with dataset", "downloadURL": "https://data.nist.gov/od/ds/mds2-3727/README.txt", "format": "ReadMe File associated with dataset", "mediaType": "text/plain", "title": "ReadMe File"}, {"description": "This .zip file contains the .txt files to data for supporting information figures for the manuscript.", "downloadURL": "https://data.nist.gov/od/ds/mds2-3727/Supporting%20Information%20Figures.zip", "format": "This .zip file contains the .txt files to data for supporting information figures for the manuscript.", "mediaType": "application/x-zip-compressed", "title": "Supporting Information Figures"}, {"description": "This zip file contains the .txt files to data for main figures in the manuscript", "downloadURL": "https://data.nist.gov/od/ds/mds2-3727/Main%20Text%20Figures.zip", "format": "This zip file contains the .txt files to data for main figures in the manuscript", "mediaType": "application/x-zip-compressed", "title": "Main Figures"}], "identifier": "ark:/88434/mds2-3727", "issued": "2025-03-04", "keyword": ["Chemical recycling", "blended textiles", "contaminants", "cotton", "depolymerization", "elastomeric fibers", "garments", "polyethylene terephthalate", "textiles"], "landingPage": "https://data.nist.gov/od/id/mds2-3727", "language": ["en"], "license": "https://www.nist.gov/open/license", "modified": "2025-02-13 00:00:00", "programCode": ["006:045"], "publisher": {"@type": "org:Organization", "name": "National Institute of Standards and Technology"}, "theme": ["Chemistry", "Chemistry:Chemical engineering and processing", "Materials:Materials characterization", "Materials:Polymers"], "title": "Evaluating Contaminant Effects and Blend Ratios on the Alkaline Hydrolysis of PET Textile Streams"}