Regenerated Cellulose Fibers Wetspun from Different Waste Cellulose Types

ABSTRACT

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.

摘要

利用离子液体/二甲基亚砜（IL/DMSO）混合物作为溶剂，通过湿法纺丝工艺从各种废纤维素源（棉绒、甘蔗渣和纸板）上成功地纺制再生纤维素纤维. 废纤维素源在IL/DMSO中的溶解度随原料来源的不同而不同. 再生纤维可以从所有的废原料纺制而成，纤维的可纺性和拉伸强度取决于纤维的DP和化学成分. 采用x射线衍射、热重分析和扫描电镜等手段对纺丝纤维的结构性能进行了研究. 结果表明，原料的性质以及废物流的预处理方式对纤维的力学性能、微晶结构、热稳定性和形态有着重要的影响.

KEYWORDS:

• Cellulose
• ionic liquids
• wet spinning
• upcycling
• waste materials
• textile

关键词:

• 纤维素
• 离子液体
• 湿纺
• 上循环
• 废料
• 纺织品

Acknowledgments

This work was performed in part at the Deakin node of the Australian National Fabrication Facility, a company established under the National Collaborative Research Infrastructure Strategy to provide nano and micro-fabrication facilities for Australia’s researchers.

Supplementary material

Supplemental data for this article can be accessed on the publisher’s website.

Additional information

Funding

This research was supported by the Australian Research Council (ARC) Research Hub for Future Fibres (IH140100018) and funded by the Australian Government.