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Dry-Spinning Approach to Continuous Graphene Fibers with High Toughness


Graphene fiber (GF) has emerged as a new carbonaceous fiber species since the finding of graphene-based liquid crystals. The growing performances of GFs in mechanics and functionalities have promised their extensive applications in structural materials and functional textiles. To date, many spinning strategies utilizing coagulation baths have been applied in GF which necessitates the complicated washing processes. Dry spinning is a more convenient and green method for fibers in chemical fiber industry, should be a good option for GFs, however, has never been realized in the system of GF. Here, we first realize the dry spinning technique to fabricate continuous GFs and the dry-spun GFs perform high toughness and flexibility. We achieved the dry spinnability by choosing dispersive solvents with low surface tension and high volatility of graphene oxide (GO) liquid crystals. The dry-spun neat GFs possessed high toughness up to 19.12 MJ m-3, outperforming the wet-spun neat GFs. Our dry spinning methodology facilitates the green fabrication of fibers of graphene and graphene-beyond 2D nanomaterials, and it may also be extended to other printing technologies for graphene complex architectures.

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Publication details

The article was received on 02 Jun 2017, accepted on 30 Jul 2017 and first published on 01 Aug 2017

Article type: Communication
DOI: 10.1039/C7NR03895J
Citation: Nanoscale, 2017, Accepted Manuscript
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    Dry-Spinning Approach to Continuous Graphene Fibers with High Toughness

    Q. Tian, Z. Xu, Y. Liu, B. Fang, L. Peng, J. Xi, Z. Li and C. Gao, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR03895J

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