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Strong and stiff: High-performance cellulose nanocrystal/poly(vinyl alcohol) composite fibers
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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5
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ACS Applied Materials and Interfaces, Volume 8, issue 46, pp. 31500-31504
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.
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Lee, W J, Clancy, A J, Kontturi, E, Bismarck, A & Shaffer, M S P 2016, 'Strong and stiff : High-performance cellulose nanocrystal/poly(vinyl alcohol) composite fibers', ACS Applied Materials and Interfaces, vol. 8, no. 46, pp. 31500-31504. https://doi.org/10.1021/acsami.6b11578