TY - GEN
T1 - Ionic electroactive polymer actuators with aligned carbon nanotube/nafion nanocomposite electrodes
AU - Liu, Yang
AU - Liu, Sheng
AU - Cebeci, Hul̈ya
AU - De Villoria, Roberto Guzman
AU - Lin, Jun Hong
AU - Wardle, Brian L.
AU - Zhang, Q. M.
N1 - Funding Information:
This material is based upon work supported in part by the U.S. Army Research Office under Grant No. W911NF-07-1-0452 Ionic Liquids in Electro-Active Devices (ILEAD) MURI and by NSF under the Grant No. CMMI 0709333. At MIT the work was supported by Airbus S.A.S., Boeing, Embraer, Lockheed Martin, Saab AB, Spirit AeroSystems, Textron Inc., Composite Systems Technology, and TohoTenax Inc. through MIT’s Nano-Engineered Composite aerospace STructures (NECST) Consortium. Hülya Cebeci acknowledges support from Scientific and Technical Research Council of Turkey (TUBITAK) for a 2214-International Research Fellowship Programme.
PY - 2011
Y1 - 2011
N2 - Recent advances in fabricating controlled-morphology vertically aligned carbon nanotube (VA-CNTs) with ultrahigh volume fraction create unique opportunities for markedly improving the electromechanical performance of ionic polymer conductor network composite actuators (IPCNCs). Actuator experiments show that the continuous paths through inter-VA-CNT channels and low electrical conduction resistance due to the continuous CNTs in the composite electrodes of the IPCNC lead to fast ion transport and actuation speed (>10% strain/second). One critical issue in developing advanced actuator materials is how to suppress or eliminate unwanted strains generated under electric stimulation, which reduce the actuation efficiency and also the actuation strains. We observe that the VA-CNTs in the composite electrodes yields non-isotropic elastic modulus that suppresses the unwanted strain and markedly enhances the actuation strain (>8% strain under 4 volts). A transmission line model has been developed to understand the electrical properties of the actuator device.
AB - Recent advances in fabricating controlled-morphology vertically aligned carbon nanotube (VA-CNTs) with ultrahigh volume fraction create unique opportunities for markedly improving the electromechanical performance of ionic polymer conductor network composite actuators (IPCNCs). Actuator experiments show that the continuous paths through inter-VA-CNT channels and low electrical conduction resistance due to the continuous CNTs in the composite electrodes of the IPCNC lead to fast ion transport and actuation speed (>10% strain/second). One critical issue in developing advanced actuator materials is how to suppress or eliminate unwanted strains generated under electric stimulation, which reduce the actuation efficiency and also the actuation strains. We observe that the VA-CNTs in the composite electrodes yields non-isotropic elastic modulus that suppresses the unwanted strain and markedly enhances the actuation strain (>8% strain under 4 volts). A transmission line model has been developed to understand the electrical properties of the actuator device.
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U2 - 10.1557/opl.2011.605
DO - 10.1557/opl.2011.605
M3 - Conference contribution
AN - SCOPUS:84860138941
SN - 9781618395115
T3 - Materials Research Society Symposium Proceedings
SP - 44
EP - 49
BT - Hierarchical Materials and Composites - Combining Length Scales from Nano to Macro
T2 - 2010 MRS Fall Meeting
Y2 - 29 November 2010 through 3 December 2010
ER -