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

Won Jun Lee | Zendy; Adam J. Clancy | Zendy; Eero Kontturi | Zendy; Alexander Bismarck | Zendy; Milo S. P. Shaffer | Zendy

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

Author(s) -

Won Jun Lee,

Adam J. Clancy,

Eero Kontturi,

Alexander Bismarck,

Milo S. P. Shaffer

Publication year - 2016

Publication title -

acs applied materials and interfaces

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.535

H-Index - 228

eISSN - 1944-8252

pISSN - 1944-8244

DOI - 10.1021/acsami.6b11578

Subject(s) - vinyl alcohol , materials science , nanocellulose , composite material , crystallinity , composite number , cellulose , spinning , nanocrystal , fiber , stiffness , polymer , chemical engineering , nanotechnology , engineering

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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