Abstract
This paper presents the characteristics and electromechanical performance of hydrophobic ionic liquid namely; 1-butyl-3-methylimidazolium hexafluorophosphate (BMIPF6) loaded cellulose. Different amount of BMIPF6 is loaded in to cellulose via solution blending during its dissolution and regeneration in trifluoroacetic acid. Influence of BMIPF6 loading on characteristics, mechanical and electromechanical properties are assessed by scanning electron microscopy, X-ray diffractograms, thermogravimetric analysis, tensile test and bending displacement tests. Experimental results show that thermal degradation temperature of the cellulose tends to decrease with increasing the BMIPF6 loading, which may be due to weakening of the intra- and intermolecular hydrogen bonds of cellulose upon addition of BMIPF6. X-ray diffraction analysis showed that the raise of the BMIPF6 content resulted in enormous reduction of peak intensities at 2θ = 12° and 20.85°. This might be due to irregular structures caused by the introduction of BMIPF6 molecules in to cellulose, results in lower crystallinity as well as the mechanical properties. BMIPF6 loaded cellulose actuator shows a maximum bending displacement output of 4 mm with comparatively better durability for prolonged time under relatively low humid condition.
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Cho, K. J., Koh, J. S., Kim, S., Chu, W. S., Hong, Y. and Ahn, S. H., “Review of Manufacturing Process for Soft Biomimetic Robots,” Int. J. Precis. Eng. Manuf., Vol. 10, No. 3, pp. 171–181, 2009.
Kim, Y., Kim, P., Lee, J. and Seok, J., “Characterization and Parameter Optimization of a Microcellular Polypropylene Electret under an External Inertial Load,” Int. J. Precis. Eng. Manuf., Vol. 10, No. 5, pp. 97–106, 2009.
Otero, T. F., Rodriguez, J., Angulo, E. and Santamaria, C., “Electrochemomechanical properties from a bilayer: polypyrrole/non-conducting and flexible material — artificial muscle,” J. Electroanal. Chem., Vol. 341, pp. 369–375, 1992.
Lughmani, W. A., Jho, J. Y., Lee, J. Y. and Rhee, K., “Modeling of Bending Behavior of IPMC Beams Using Concentrated Ion Boundary Layer,” Int. J. Precis. Eng. Manuf., Vol. 10, No. 5, pp. 131–139, 2009.
Wang, T. T., Herbert, J. M. and Glass, A. M., “The Applications of ferroelectric polymers,” Chapman and Hall, London, 1988.
Broadhurst, M. G., Davis, G. T., McKinney, J. E. and Collins, R. E., “Piezoelectricity and pyroelectricity in polyvinylidene fluoride—A model,” J. Appl. Phy. C., Vol. 49, pp. 4992–4997, 1978.
Kepler, R. G. and Anderson, R. A., “Piezoelectricity and pyroelectricity in polyvinylidene fluoride,” J. Appl. Phy., Vol. 49, pp. 4490–4994, 1978.
Kim, J., Yun, S. and Ounaeis, Z., “Discovery of cellulose as smart material,” Macromolecules, Vol. 39, No. 12, pp. 4202–4206, 2006.
Yun, S., Kim, J. and Lee, K.-S., “Evaluation of Cellulose Electro-Active Paper Made by Tape Casting and Zone Stretching Methods,” Int. J. Precis. Eng. Manuf., Vol. 11, No. 6, pp. 987–990, 2010.
Huddleston, J. G. and Rogers, R. D., “Room temperature ionic liquids as novel media for clean liquid-liquid extraction,” Chem. Commun., No. 16, pp. 1765–1766, 1998.
Dickinson, E. V., Williams, M. E., Hendrickson, S. M., Masui, H. and Murray, R. W., “Hybrid Redox Polyether Melts Based on Polyether-Tailed Counterions,” J. Am. Chem. Soc., Vol. 121, No. 4, pp. 613–616, 1999.
Nakashima, T. and Kimuzuka, N., “Vesicles in Salt: Formation of Bilayer Membranes from Dialkyldimethylammonium Bromides in Ether-containing Ionic Liquids,” Chem. Lett., No. 10, pp. 1018–1019, 2002.
Wen, L., Fadeev, A. G., Baohua, Q., Smela, E., Mattes, B. R., Ding, J., Spinks, G. M., Jakub, M., Zhou, D., Gordon, G. W., Douglas, R. M., Stewart, A. F. and Maria, F., “Use of ionic liquids for π-conjugated polymer electrochemical devices,” Science, Vol. 297, No. 5583, pp. 983–987, 2002.
Sun, H., Linpo, Y., Xianbo, J., Xiaohong, H., Wang, D. and Chen, G. Z., “Unusual anodic behavior of chloride ion in 1-butyl-3methylimidazolium hexafluorophosphate,” Electrochem. Commun., Vol. 7, No. 7, pp. 685–691, 2005.
Wilkis, J. S. and Zaworotko, M. J., “Air and water stable 1-ethyl-3-methylimidazolium based ionic liquids,” J. Chem. Soc. Chem. Commun., Vol. 23, No. 43, pp. 965–966, 1992.
McEwen, A. B., Helen, L. N., LeCompte, K. and Goldman, J. L., “Electrochemical properties of imidazolium salt electrolytes for electrochemical capacitor applications,” J. Electrochem. Soc., Vol. 146, No. 5, pp. 1687–1695, 1999.
Scott, M. P., Rahman, M. and Brazel, C. S., “Application of ionic liquids as low-volatility plasticizers of PMMA,” Euro. Polym. J., Vol. 39, No. 10, pp. 1947–1953, 2003.
Nanbu, N., Sasaki, Y. and Kitamura, F., “In situ FT-IR spectroscopic observation of a room-temperature molten salt gold electrode interphase,” Electrochem. Commun., Vol. 5, No. 5, pp. 383–387, 2003.
Jiang, J., Gao, D., Li, Z. and Su, G., “Gel polymer electrolytes prepared by in situ polymerization of vinyl monomers in roomtemperature ionic liquids,” React. Funct. Polym., Vol. 66, No. 10, pp. 1141–1148, 2006.
Salmen, N. L. and Back, E. L., “The influence of water on the glass phase transition temperature of cellulose,” TAPPI, Vol. 60, No. 12, pp. 137–140, 1977.
Ludwik, S., Adam, R. and Jadwiga, T. G., “Glass transition temperature and thermal decomposition of cellulose powder,” Cellulose, Vol. 15, No. 3, pp. 445–451, 2008.
Holbrey, J. D., Reichert, W. M., Swatloski, R. P., Broker, G. A., Pinter, W. R., Seddon, K. R. and Rogers, R. D., “Efficient, halide free synthesis of new, low cost ionic liquids: 1,3-dialkylimidazolium salts containing methyl- and ethyl-sulfate anions,” Green Chem., Vol. 4, No. 5, pp. 407–413, 2002.
Marrinan, H. J. and Mann, J., “Infrared spectra of the crystalline modification of cellulose,” J. Polym. Sci., Vol. 21, pp. 301–311, 1956.
Jung, H. Z., Benerito, R. R., Berni, R. J. and Mitcham, D., “Effect of low temperatures on polymorphic structures of cotton cellulose,” J. Appl. Polym. Sci., Vol. 21, No. 7, pp. 1981–1988, 1977.
Akira, I., “Material Science of Cellulose,” Tokyo University Press, Tokyo, p. 8, 2001.
Rao, S. S., “Mechanical Vibrations: 2nd Ed.,” Addison-Wesley, p. 398, 1987.
Tahhan, M., Truong, V. T., Spinks, G. M. and Wallace, G. G., “Carbon nanotube and polyaniline composite actuators,” Smart Mater. Struct., Vol. 12, No. 4, pp. 626–632, 2003.
Yun, S. R. and Kim, J., “A bending electro-active paper actuator made by mixing multi-walled carbon nanotubes and cellulose,” Smart Mater. Struct., Vol. 16, No. 4, pp. 1471–1476, 2007.
Kim, J., Wang, N., Yi, C., Lee, S. K. and Yun, G. Y., “Electroactive-paper actuator made with cellulose/NaOH/urea and sodium alginate,” Cellulose, Vol. 14, No. 3, pp. 217–223, 2007.
Kim, J., Wang, N., Yi, C. and Yun, G. Y., “An electro-active paper actuator made with lithium chloride/cellulose films: effects of glycerol content and film thickness,” Smart Mater. Struct., Vol. 16, No. 5, pp. 1564–1569, 2007.
Kim, J., Wang, N. and Yi, C., “Effect of chitosan and ions on actuation behavior of cellulose-chitosan laminated films as electro-active paper,” Cellulose, Vol. 14, No. 5, pp. 439–445, 2007.
Cai, Z. and Kim, J., “Characteristics and performance of electroactive paper actuator made with cellulose/ polyurethane semi-interpenetrating polymer networks,” J. Appl. Polym. Sci., Vol. 109, No. 6, pp. 3689–3695, 2008.
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Mahadeva, S.K., Kim, J. & Jo, C. Effect of hydrophobic ionic liquid loading on characteristics and electromechanical performance of cellulose. Int. J. Precis. Eng. Manuf. 12, 47–52 (2011). https://doi.org/10.1007/s12541-011-0006-y
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DOI: https://doi.org/10.1007/s12541-011-0006-y