期刊
CARBOHYDRATE POLYMERS
卷 207, 期 -, 页码 11-16出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2018.11.052
关键词
CP-MAS NMR; Cotton; MMCFs; PET; textile recycling; Cellulose crystallinity
资金
- European Union [646226]
The valorization of cellulose rich textile waste is promoted by the development of a novel solid-state NMR method for the quantification of cellulose and polyester in textile blends. We applied C-13 CP-MAS NMR as a tool for the quantification and structural characterization of cellulose in cotton polyester blends. Gaussian functions were used to integrate the spectra obtained from a set of calibration standards in order to calculate a sigmoidal calibration curve. Acid hydrolysis was chosen as a reference method. The results demonstrated that solid-state NMR enables a reliable determination of cellulose and polyester in both preconsumer and postconsumer waste textiles and suggests a possible extension of the concept to blends of man-made cellulose fibers (MMCFs) and polyester.
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