Transparent, Conductive, and Printable Composites Consisting of TEMPO-Oxidized Nanocellulose and Carbon Nanotube

Ultrastrong, transparent, conductive and printable nanocomposites were successfully prepared by mixing single-walled carbon nanotubes (CNTs) with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibrils (TOCNs) with abundant sodium carboxyl groups on the crystalline nanocellulose...

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Bibliographic Details
Published in:Biomacromolecules 2013-04, Vol.14 (4), p.1160-1165
Main Authors: Koga, Hirotaka, Saito, Tsuguyuki, Kitaoka, Takuya, Nogi, Masaya, Suganuma, Katsuaki, Isogai, Akira
Format: Article
Language:English
Subjects:
Applied sciences
Cellulose - chemistry
Composites
Cyclic N-Oxides - chemistry
Electric Conductivity
Exact sciences and technology
Forms of application and semi-finished materials
Nanocomposites - chemistry
Nanotubes, Carbon - chemistry
Polymer industry, paints, wood
Resins, Synthetic - chemistry
Technology of polymers
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Summary:Ultrastrong, transparent, conductive and printable nanocomposites were successfully prepared by mixing single-walled carbon nanotubes (CNTs) with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibrils (TOCNs) with abundant sodium carboxyl groups on the crystalline nanocellulose surfaces. The surface-anionic cellulose nanofibrils had reinforcing and nanodispersing effects on the CNTs both in water used as the dispersed medium and in the dried composite film, providing highly conductive and printable nanocomposites with a small amount of CNTs. TOCNs are therefore expected as an effective flexible matrix that can be used as an alternative to conventional polymers for various electrical materials, when nanocomposited with CNTs and also graphene. Our findings provide a promising route to realize green and flexible electronics.
ISSN:1525-7797
1526-4602
DOI:10.1021/bm400075f