Journal
JOURNAL OF NATURAL FIBERS
Volume 18, Issue 12, Pages 2338-2350Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15440478.2020.1726244
Keywords
Cellulose; ionic liquids; wet spinning; upcycling; waste materials; textile
Categories
Funding
- Australian Research Council (ARC) Research Hub for Future Fibres [IH140100018]
- Australian Government
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Regenerated cellulosic fibers were successfully spun from various waste cellulose sources using a wet spinning process with an IL/DMSO mixture as the solvent. The properties of the spun fibers are determined by the starting materials and the pretreatment of the waste feed streams. Factors such as mechanical properties, crystallite structure, thermal stability, and fiber morphology are significantly impacted by the properties of the raw materials and their pretreatment.
Regenerated cellulosic fibers were successfully spun from various waste cellulose sources (cotton linter, bagasse, and cardboard) suitable for use as a textile fibers using a wet spinning process with an ionic liquid/dimethyl sulfoxide (IL/DMSO) mixture as the solvent. The solubility of the waste cellulose sources in IL/DMSO varies according to the source of the raw material. Regenerated fibers can be spun from all the waste feedstock, the spinnability and fiber tensile strength is governed by the DP and chemical composition of the cellulose. The structural properties of the spun fibers are determined by x-ray diffraction, thermalgravimetric analysis, and scanning electron microscope. The results reveal that the properties of the starting materials and thus how the waste feed streams are pretreated have a significant impact on the mechanical properties, crystallite structure, thermal stability, and the morphology of the fibers.
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