Upcycling of cotton polyester blended textile waste to new man-made cellulose fibers

Simone Haslinger, Michael Hummel, Adina Anghelescu-Hakala, Marjo Määttänen, Herbert Sixta

Research output: Contribution to journalArticleScientificpeer-review

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 languageEnglish
Pages (from-to)88-96
Number of pages9
JournalWaste Management
Volume97
DOIs
Publication statusPublished - Sep 2019
MoE publication typeA1 Journal article-refereed

Fingerprint

cellulose
cotton
dissolution
fibre
textile
ionic liquid
distribution
pulp
economy
method
removal

Keywords

  • Cellulose PET separation
  • Dry-jet wet spinning
  • Ioncell
  • Ionic liquid
  • Polyethylene terephthalate
  • Textile recycling

Cite this

@article{de62ce4bcc3b4532adeb6b29a6bbfd7b,
title = "Upcycling of cotton polyester blended textile waste to new man-made cellulose fibers",
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.",
keywords = "Cellulose PET separation, Dry-jet wet spinning, Ioncell, Ionic liquid, Polyethylene terephthalate, Textile recycling",
author = "Simone Haslinger and Michael Hummel and Adina Anghelescu-Hakala and Marjo M{\"a}{\"a}tt{\"a}nen and Herbert Sixta",
year = "2019",
month = "9",
doi = "10.1016/j.wasman.2019.07.040",
language = "English",
volume = "97",
pages = "88--96",
journal = "Waste Management",
issn = "0956-053X",
publisher = "Elsevier",

}

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 journalArticleScientificpeer-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 -