Study on NH3 Plasma-Treated Polyimide/MWNT Composites on Electrical and Surface Properties


We studied the surface modification of polyimide/multi-walled carbon nanotube (MWNT) composites resulting from plasma treatment. After NH3 plasma treatment, the surface properties of polyimide containing MWNT (U-CNT) or acid modified MWNTs (M-CNTs) were investigated using X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), contact angle and electrical measurements. The surface of polyimide/MWNT composites became more hydrophilic after the NH3 plasma treatment, which improved the surface electrical conductivity of polyimide/MWNT composites. The XRD results indicate that the formation of a MWNT network structure in the polyimide matrix impeded the motion of polyimide molecules.

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Y. Cheng, H. Ko, S. Chou and P. Ku, "Study on NH3 Plasma-Treated Polyimide/MWNT Composites on Electrical and Surface Properties," Materials Sciences and Applications, Vol. 5 No. 1, 2014, pp. 54-58. doi: 10.4236/msa.2014.51008.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] S. Iijima, “Helical Microtubules of Graphitic Carbon,” Nature, Vol. 354, 1991, pp. 56-58.
[2] S. Shenogin, A. Bodapati, L. Xue, R. Ozisik and P. Keblinski, “Effect of Chemical Functionalization on Thermal Transport of Carbon Nanotube Composites,” Applied
Physics Letters, Vol. 85, No. 12, 2004, pp. 2229-2231.
[3] C.-H. Tseng, C.-C. Wang and C.-Y. Chen, “Functionalizing Carbon Nanotubes by Plasma Modification for the Preparation of Covalent-Integrated Epoxy Composites,” Chemistry of Materials, Vol. 19, No. 2, 2007, pp. 308-315.
[4] I.-H. Chen, C.-C. Wang and C.-Y. Chen, “Preparation of Carbon Nanotube (CNT) Composites by Polymer Functionalized CNT under Plasma Treatment,” Plasma Processes Polymers, Vol. 7, No. 1, 2010, pp. 59-63.
[5] K. Yang, M. Gu, Y. Guo, X. Pan and G. Mu, “Effect of Carbon Nanotube Functionalization on the Mechanical and Thermal Properties of Epoxy,” Carbon, Vol. 47, No. 7, 2009, pp. 1723-1737.
[6] S.-M. Yuen, C.-C. M. Ma, Y.-Y. Lin and H.-C. Kuan, “Preparation, Morphology and Properties of Acid and Amine Modified Multiwalled Carbon Nanotube/Polyimide Composite,” Composites Science and Technology, Vol. 67, No. 11-12, 2007, pp. 2564-2573.
[7] C. Velasco-Santos, A. L. Marìnez-Hernàndez, M. Lozada-Cassou, A. Alvarez-Castillo and V. M. Castano, “Chemical Functionalization of Carbon Nanotubes through an Organosilane,” Nanotechnology, Vol. 13, 2002, pp. 495-498.
[8] C. A. ávila-Orta, V. J. Cruz-Delgado, M. G. Neira-Velázquez, E. Hernández-Hernández, M. G. Méndez-Padilla and F. J. Medellín-Rodríguez, “Surface Modification of Carbon Nanotubes with Ethylene Glycol Plasma,” Carbon, Vol. 47, No. 8, 2009, pp. 1916-1921.
[9] T. Xu, J. Yang, J. Liu and Q. Fu, “Surface Modification of Multi-Walled Carbon Nanotubes by O2 Plasma,” Applied Surface Science, Vol. 253, No. 22, 2007, pp. 8945-951.
[10] M. J. Chuang, “Carbon Tetrafluoride Plasma Modification of Polyimide: A Method of In-Situ Formed Hydrophilic and Hydrophobic Surfaces,” Surface & Coatings Technology, Vol. 203, No. 23, 2009, pp. 3527-3532.
[11] S. J. Park, H. J. Sohn, S. K. Hong and G. S. Shin, “Influence of Atmospheric Fluorine Plasma Treatment on Thermal and Dielectric Properties of Polyimide Film,” Journal of Colloid and Interface Science, Vol. 332, No. 1, 2009, pp. 246-250.
[12] C. H. Wen, M. A. Chuang and G. H. Hsiue, “Asymmetric Surface Modification of Poly(ethylene terephthalate) Film by CF4 Plasma Immersion,” Applied Surface Science, Vol. 252, No. 10, 2006, pp. 3799-3805.
[13] C. Chen, B. Liang, D. Lu, A. Ogino, X. Wang and M. Nagatsu, “Amino group Introduction onto Multiwall Carbon Nanotubes by NH3/Ar Plasma Treatment,” Carbon, Vol. 48, No. 4, 2010, pp. 939-948.
[14] H. Bubert, S. Haiber, W. Brandlb, G. Margineanb, M. Heintzec and V. Brüser, “Characterization of the Uppermost Layer of Plasma-Treated Carbon Nanotubes,” Diamond and Related Materials, Vol. 12, No. 3-7, 2003, pp. 811-815.
[15] K. S. Ahn, J. S. Kim, C. O. Kim and J. P. Hong, “NonReactive rf Treatment of Multiwall Carbon Nanotube with Inert Argon Plasma for Enhanced Field Emission,” Carbon, Vol. 41, No. 13, 2003, 2481-2485.
[16] L. Valentini, J. Macan, I. Armentano, M. Francesco and J. M. Kenny, “Modification of Fluorinated Single-Walled Carbon Nanotubes with Aminosilane Molecules,” Carbon, Vol. 44, No. 11, 2006, pp. 2196-2201.
[17] C. Chen, A. Ogino, X. Wang and M. Nagatsu, “Plasma Treatment of Multiwall Carbon Nanotubes for Dispersion Improvement in Water,” Applied Physics Letters, Vol. 96, 2010, Article ID: 131504.
[18] W.-J. Chou, C.-C. Wang and C.-Y. Chen, “Characteristics of Polyimide-Based Nanocomposites Containing PlasmaModified Multi-Walled Carbon Nanotubes,” Composites Science and Technology, Vol. 68, No. 10-11, 2008, pp. 2208-2213.
[19] L. Valentini, D. Puglia, F. Carniato, E. Boccaleri, L. Marchese and J. M. Kenny, “Use of Plasma Fluorinated Single-Walled Carbon Nanotubes for the Preparation of Nanocomposites with Epoxy Matrix,” Composites Science and Technology, Vol. 68, No. 3-4, 2008, pp. 1008-1014.
[20] P. C. Ma, J. K. Kim and B. Z. Tang, “Functionalization of Carbon Nanotubes Using a Silane Coupling Agent,” Carbon, Vol. 44, No. 6, 2009, pp. 3232-3238

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