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Carbon nanotube sheets for the use as artificial muscles

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Roth,  S.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Detlaff-Weglikowska,  U.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Vohrer, U., Kolaric, I., Haque, M. H., Roth, S., & Detlaff-Weglikowska, U. (2004). Carbon nanotube sheets for the use as artificial muscles. Carbon, 42(5-6), 1159-1164.


Cite as: https://hdl.handle.net/21.11116/0000-000E-FF99-7
Abstract
Low voltage artificial muscles are of great importance for an enormous
variety of industrial applications. In 1999 a new material, carbon
nanotube sheets also called bucky paper, was described with suitable
electromechanical properties. We developed an experimental set-up which
allows, for the first time, the analysis of actuation forces vertical
to the sheet plane. Single walled carbon nanotubes (SWNT) from arc
discharge or HiPco process as well as multi walled carbon nanotubes
(MWNT) were used as received or after further purification steps to
produce carbon nanotube sheets by the filtration technique. The fastest
actuation time of three seconds could be, up to now, obtained with the
HiPco-material, which is free of amorphous carbon particles. Several
parameters influence the electromechanical properties like the sheet
thickness, the used electrolyte, the applied voltage and so on. But
also the nanotube material itself and the procedure for the bucky paper
production must be considered intensively to avoid large differences
between different batches and to produce indiscriminate and
reproducible carbon nanotube sheets. We characterized the material,
among others, by TGA, SEM/EDX, and BET analysis. (C) 2004 Elsevier Ltd.
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