| Literature DB >> 31447031 |
Simone Haslinger1, Michael Hummel2, Adina Anghelescu-Hakala3, Marjo Määttänen4, Herbert Sixta5.
Abstract
The creation of a circular economy for cellulose based textile waste is supported by the development of an upcycling method for cotton polyester blended waste garments. We present a separation procedure for cotton and polyester using [DBNH] [OAc], a superbase based ionic liquid, which allows the selective dissolution of the cellulose component. After the removal of PET, the resulting solution could be employed to dry-jet wet spin textile grade cellulose fibers down to the microfiber range (0.75-2.95 dtex) with breaking tenacities (27-48 cN/tex) and elongations (7-9%) comparable to commercial Lyocell fibers made from high-purity dissolving pulp. The treatment time in [DBNH] [OAc] was found to reduce the tensile properties (<52%) and the molar mass distribution (<51%) of PET under certain processing conditions.Entities:
Keywords: Cellulose PET separation; Dry-jet wet spinning; Ioncell; Ionic liquid; Polyethylene terephthalate; Textile recycling
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Year: 2019 PMID： 31447031 DOI： 10.1016/j.wasman.2019.07.040
Source DB: PubMed Journal: Waste Manag ISSN： 0956-053X Impact factor: 7.145