title: Strong and Stiff: High-Performance Cellulose Nanocrystal/Poly(vinyl alcohol) Composite Fibers.
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.
authors.forename: Won Jun
authors.initials: WJ
authors.lastname: Lee
authors.forename: Adam J
authors.initials: AJ
authors.lastname: Clancy
authors.affiliation: Department of Forest Products Technology, School of Chemical Technology, Aalto University , P.O. Box 16300, Aalto FI-00076, Finland.|Polymer and Composite Engineering (PaCE) Group, Institute of Materials Chemistry and Research, Faculty of Chemistry, University of Vienna , Währinger Strasse 42, A-1090 Vienna, Austria.
authors.forename: Eero
authors.initials: E
authors.lastname: Kontturi
authors.affiliation: Polymer and Composite Engineering (PaCE) Group, Institute of Materials Chemistry and Research, Faculty of Chemistry, University of Vienna , Währinger Strasse 42, A-1090 Vienna, Austria.
authors.forename: Alexander
authors.initials: A
authors.lastname: Bismarck
authors.forename: Milo S P
authors.initials: MS
authors.lastname: Shaffer
keywords: cellulose nanocrystal; composite; fiber; nanocellulose; poly vinyl alcohol