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.
| Original language | English |
|---|---|
| Pages (from-to) | 88-96 |
| Number of pages | 9 |
| Journal | Waste Management |
| Volume | 97 |
| DOIs | |
| Publication status | Published - Sep 2019 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- Cellulose PET separation
- Dry-jet wet spinning
- Ioncell
- Ionic liquid
- Polyethylene terephthalate
- Textile recycling
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Upcycling of cotton polyester blended textile waste to new man-made cellulose fibers. / Haslinger, Simone; Hummel, Michael; Anghelescu-Hakala, Adina; Määttänen, Marjo; Sixta, Herbert.
In: Waste Management, Vol. 97, 09.2019, p. 88-96.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Upcycling of cotton polyester blended textile waste to new man-made cellulose fibers
AU - Haslinger, Simone
AU - Hummel, Michael
AU - Anghelescu-Hakala, Adina
AU - Määttänen, Marjo
AU - Sixta, Herbert
PY - 2019/9
Y1 - 2019/9
N2 - 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.
AB - 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.
KW - Cellulose PET separation
KW - Dry-jet wet spinning
KW - Ioncell
KW - Ionic liquid
KW - Polyethylene terephthalate
KW - Textile recycling
UR - http://www.scopus.com/inward/record.url?scp=85070100676&partnerID=8YFLogxK
U2 - 10.1016/j.wasman.2019.07.040
DO - 10.1016/j.wasman.2019.07.040
M3 - Article
VL - 97
SP - 88
EP - 96
JO - Waste Management
JF - Waste Management
SN - 0956-053X
ER -