Thermal and Electrical Conductivities of Carbon Fibers and Carbon Nanotubes Incorporated Polyurethanes Composites

Abstract:

Single filler polyurethane composites with carbon fibers (CFs) and multi-walled carbon nanotubes (MWNTs) were prepared by melt mixing methods and its thermal as well as electrical resistivity characteristics were investigated. The influences of fillers and mixing methods on thermal and electrical conductivity of CF/- and MWNT/polyurethane composites were investigated and the result shows that the addition of carbon fillers improved the thermal conductivity of the polyurethane composites. Higher filler concentration results in better thermal conductivity because better formation of thermally conductive networks along polymer matrix to ensure the thermal was conducted through the matrix and the network along the polymer composites. The presence of carbon additives improves the electrical resistivity of the materials as well. The present study revealed the potential of carbon as agent for better thermal and electrical conductivities and their properties depend strongly on the dispersion and distribution of the fillers in the polymer matrix.

• Periodical: Key Engineering Materials (Volume 442)
• Pages: 349-355
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.442.349
• Online since: June 2010
• Authors: Shahrul A. Abdullah, Lars Frormann, Anjum Saleem
• Keywords: Carbon Fiber (CF), Carbon Filler, Carbon Nanotube (CN), Composite, Polyurethane (PU)

References

[1] Buffa, F.; Abraham, G. A.; Grady, B. P.; Resasco, D. J Polym Sci: Part B: Polym Physics 2007, 45, 490.

[2] Kim, B. K.; Lee, S. Y.; Xu, M. Polymer 1996, 37, 5781.

[3] Gall, K.; Dunn, M. L.; Liu, Y.; Finch, D.; Lake, M.; Munshi, N. A. Acta Materialia 2002, 50, 5115.

[4] Liu, Y.; Gall, K.; Dunn, M. L.; McCluskey, P. Mechanics of Materials 2004, 36, 929.

[5] Li, F.; Qi, L.; Yang, J.; Xu, M.; Luo, X.; Ma, D. J Appl Polym Sci 2000, 75, 68.

[6] Koerner, H.; Price, G.; Pearce, N. A.; Alexander, M.; Vaia, R. A. Nat Mater 2004, 3, 115.

[7] Gall, K.; Dunn, M. L.; Liu, Y. Applied Physics Letters 2004, 85, 290.

[8] Koerner, H.; Liu, W.; Alexander, M.; Mirau, P.; Dowty, H.; Vaia, R. A. Polymer 2005, 46, 4405.

DOI: 10.1016/j.polymer.2005.02.025

[9] Kuan, H.; Ma, C. M.; Chang, W.; Yuen, S. M.; Wu, H.; Lee, T. Composites Science and Technology 2005, 65, 1703.

[10] Böttcher, C. Theory of Electric Polarisation; Elsevier: Amsterdam, The Netherlands, (1952).

[11] deLoor, G. PhD Thesis, University of Leiden, NL: Leiden, (1956).

[12] van Beek, L. Prog Dielect 1967, 7, 69.

[13] Agari, Y.; Uno, A. J Appl Polym Sci 1986, 32, 5705.

[14] Nan, C.; Liu, G.; Lin, Y.; Li, M. Applied Physics Letters 2004, 85, 3549.

[15] Huxtable, S.T.; Cahill, D. G.; Shenogin, S.; Xue, L.; Ozisik, R.; Barone, P.; Usrey, M.; Strano, M. S.; Siddons, G.; Shim, M.; Keblinski, P. Nat Mater 2003, 2, 731.

DOI: 10.1038/nmat996

[16] Nielsen, L.E. Ind Eng Chem Fundam 1974, 13, 17.

[17] McCullough, R. L. Compos Sci Tecnol 1985, 22, 3.

[18] Ondracek, G. Rev Powder Metall Phys Ceram 1987, 3, 1205.

[19] Weber, M.; Kamal, M. R. Polym Comp 1997, 18, 711.

[20] Taipalus, R., Friedrich, K. Int Conf on Composite Materials ICCM-12, 1999, Paris, France, 359.

[21] Kashiwagi, T.; Grulke, E.; Hilding, J.; Groth, K.; Harris, R.; Butler, K.; Shields, J.; Kharchenko, S.; Douglas, J. Polymer 2004, 45, 4227.

DOI: 10.1016/j.polymer.2004.03.088

[22] Nan, C.; Liu, G.; Lin, Y.; Li, M. Applied Physics Letters 2004, 85, 3549.

[23] Song, Y. S.; Youn, J. R. Carbon 2005, 43, 1378.

[24] Pötschke, P.; Bhattachryya, A. R.; Janke, A.; Pegel, S.; Leonhardt, A., Täschner, C.; Ritschel, M.; Roth, S.; Hornbostel, B.; Cech, J. Fullerenes, Nanotubes, and Carbon nanostructures 2005, 13, 211.

DOI: 10.1081/fst-200039267