Journal
CHEMSUSCHEM
Volume 9, Issue 22, Pages 3250-3258Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201600680
Keywords
cellulose; ionic liquids; fibers; renewable resources; waste prevention
Funding
- Finnish Funding Agency for Innovation (TEKES)
- Horizon project Trash2Cash [646226]
Ask authors/readers for more resources
A new chemical recycling method for waste cotton is presented that allows the production of virgin textile fibers of substantially higher quality than that from the mechanical recycling methods that are used currently. Cotton postconsumer textile wastes were solubilized fully in the cellulose-dissolving ionic liquid 1,5-diazabicyclo[4.3.0] non-5-enium acetate ([DBNH]OAc) to be processed into continuous filaments. As a result of the heterogeneous raw material that had a different molar mass distribution and degree of polymerization, pre-treatment to adjust the cellulose degree of polymerization by acid hydrolysis, enzyme hydrolysis, or blending the waste cotton with birch prehydrolyzed kraft pulp was necessary to ensure spinnability. The physical properties of the spun fibers and the effect of the processing parameters on the ultrastructural changes of the fibers were measured. Fibers with a tenacity (tensile strength) of up to 58 cN tex(-1) (870 MPa) were prepared, which exceeds that of native cotton and commercial man-made cellulosic fibers.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available