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Strong and stiff: High-performance cellulose nanocrystal/poly(vinyl alcohol) composite fibers

Lee, WJ; Clancy, AJ; Kontturi, E; Bismarck, A; Shaffer, MSP; (2016) Strong and stiff: High-performance cellulose nanocrystal/poly(vinyl alcohol) composite fibers. ACS Applied Materials and Interfaces , 8 (46) pp. 31500-31504. 10.1021/acsami.6b11578. Green open access

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Abstract

The mechanical properties of rodlike cellulose nanocrystals (CNCs) suggest great potential as bioderived reinforcement in (nano)composites. Poly(vinyl alcohol) (PVOH) is a useful industrial material and very compatible with CNC chemistry. High performance CNC/PVOH composite fibers were produced coaxial coagulation spinning, followed by hot-drawing. We showed that CNCs increase the alignment and crystallinity of PVOH, as well as providing direct reinforcement, leading to enhanced fiber strength and stiffness. At 40 wt % CNC loading, the strength and stiffness reached 880 MPa and 29.9 GPa, exceeding the properties of most other nanocellulose based composite fibers previously reported.

Type: Article
Title: Strong and stiff: High-performance cellulose nanocrystal/poly(vinyl alcohol) composite fibers
Open access status: An open access version is available from UCL Discovery
DOI: 10.1021/acsami.6b11578
Publisher version: http://doi.org/10.1021/acsami.6b11578
Language: English
Additional information: © 2016 American Chemical Society. This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Nanocellulose, cellulose nanocrystal, poly vinyl alcohol, composite, fiber
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/10025232
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