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. 2016 Nov 23;8(46):31500-31504.
doi: 10.1021/acsami.6b11578. Epub 2016 Nov 11.

Strong and Stiff: High-Performance Cellulose Nanocrystal/Poly(vinyl alcohol) Composite Fibers

Won Jun Lee, Adam J Clancy, Eero Kontturi  1   2 , Alexander Bismarck  2 , Milo S P Shaffer
Affiliations
Free article

Strong and Stiff: High-Performance Cellulose Nanocrystal/Poly(vinyl alcohol) Composite Fibers

Won Jun Lee et al. ACS Appl Mater Interfaces. .
Free article

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.

Keywords: cellulose nanocrystal; composite; fiber; nanocellulose; poly vinyl alcohol.

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