Carbon Nanofiber Hybrid Actuators: Part I - Liquid Electrolyte-based
| Autor: | Yun Yeo-Heung, Donglu Shi, Vesselin Shanov, Suhasini Narasimhadevara, Subrahmin Srivinas, Atul Miskin, Vishal Shinde, Douglas Hurd, Phil Kang, F. J. Boerio, Mark J. Schulz, Sachin Jain, Peng He |
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| Rok vydání: | 2006 |
| Předmět: |
Materials science
Carbon nanofiber Mechanical Engineering Buckypaper 02 engineering and technology Carbon nanotube Electrolyte 021001 nanoscience & nanotechnology Smart material law.invention Dielectric spectroscopy Electrochemical cell 020303 mechanical engineering & transports 0203 mechanical engineering law General Materials Science Composite material 0210 nano-technology Actuator |
| Zdroj: | Journal of Intelligent Material Systems and Structures. 17:107-116 |
| ISSN: | 1530-8138 1045-389X |
| DOI: | 10.1177/1045389x06055174 |
| Popis: | The objective of this study (Part II) paper is to develop a dry actuator for wider application than the wet actuator. To form a dry actuator, a carbon nanofiber (CNF) actuator is based on a solid polymer electrolyte (SPE). The SPE film is prepared from polymethyl methacrylate (PMMA), an ion-exchange material, a plasticizer, and a solvent by the solution casting method. Ion conductivity studies were carried out to characterize the electrochemical properties of the SPE. Electrochemical impedance spectroscopy was performed to understand the electrochemical cell of the dry actuator. The actuator was tested in a dry environment at various voltages and frequencies and the tip displacement was measured using a laser displacement sensor. Compared to previous single wall carbon nanotube buckypaper actuators, the dry-based CNF actuator requires a little higher voltage to actuate, but it is two orders of magnitude lower in cost. Compared to the liquid-based actuator, the solid electrolyte-based actuator is slower and the displacements are smaller. These results have verified the principle of the CNF dry actuator. Further development of this new smart material could lead to practical smart structures applications in which the CNF hybrid material could be used as a muscle layer on structures, or as the structural material itself. |
| Databáze: | OpenAIRE |
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