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Proceedings Paper

Alignment of multiwalled carbon nanotubes in cellulose EAPap by electric fields
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Paper Abstract

Cellulose Electro-Active Paper (EAPap) has potential as a smart material due to its advantages of biodegradability, lightweight, air actuation, large displacement output, low actuation voltage and low power consumption. However, improvement of its small output force and low actuating frequency band still remain as drawbacks. In this study, asymmetrical arrangement of Multi-Walled Carbon Nanotubes (MWNTs) in cellulose matrix was investigated to resolve drawbacks. Corona discharging technique was used by means of DC electrophoresis of MWNTs in cellulose matrix. To make MWNTs mixed cellulose EAPap, cellulose fibers were well dissolved in 8%(w/w) LiCl/DMAc (N,N-dimethyl acetamide) by swelling procedure followed by solvent exchange technique. MWNTs were well dispersed in the cellulose solution by sonication for 2 hours, and the suspension was spin-coated on an ITO (Indium tin oxide) coated glass, and high DC electric field was given to the spincoated suspension for 3 hours at 40°C. The structure of MWNT/Cellulose film was characterized by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). It was seen that most of MWNTs were moved and biased toward cathode, and film having double layer-like structure was made.

Paper Details

Date Published: 20 April 2007
PDF: 5 pages
Proc. SPIE 6526, Behavior and Mechanics of Multifunctional and Composite Materials 2007, 652622 (20 April 2007); doi: 10.1117/12.715571
Show Author Affiliations
Sungryul Yun, Inha Univ. (South Korea)
Jung Hwan Kim, Inha Univ. (South Korea)
Sumanth Banda, Texas A&M Univ. (United States)
Zoubeida Ounaies, Texas A&M Univ. (United States)
Jaehwan Kim, Inha Univ. (South Korea)

Published in SPIE Proceedings Vol. 6526:
Behavior and Mechanics of Multifunctional and Composite Materials 2007
Marcelo J. Dapino, Editor(s)

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