Preparation and Properties of Carbon Nanofiber/Polyimide Composite Films


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Carbon nanofiber/polyimide (CNF/PI) composite films were prepared by dispersing CNFs in polyamic acid, the precursor of polyimide, followed by imidization. Because the as-synthesized CNFs were difficult to disperse, they were treated with ball-milling in water and surfactant solution for 12 or 24 hours. MgO microparticles were also added to enhance the ball-milling effect. As-prepared composite films were approximately 0.05 mm in thickness. The volume fractions of CNFs in composites were 0.1%, 0.2%, 0.5%, 1%, 2%, and 5%, respectively. The effect of treatment of CNFs on the tensile strength and electric resistivity of CNF/PI films were investigated.



Materials Science Forum (Volumes 486-487)

Edited by:

Hyung Sun Kim, Sang-Yeop Park, Bo Young Hur and Soo Wohn Lee




A. Yamamoto et al., "Preparation and Properties of Carbon Nanofiber/Polyimide Composite Films", Materials Science Forum, Vols. 486-487, pp. 493-496, 2005

Online since:

June 2005




[1] Dai HJ, Carbon nanotubes: opportunities and challenges, Surface Science, Vol500, (2002), p.218.

[2] Baughman RH, Zakhidov AA, de Heer WA, Carbon nanotubes-the route toward applications, Science, Vol 297 (2002), p.787.

[3] G. B. Zheng, K. Kouda, H. Sano, Y. Yasuo et al. A model for the structure and growth of carbon nanofibers synthesized by the CVD method using nickel as a catalyst, Carbon, Vol 42 (2004), p.635.


[4] C. Park, Z. Ounaies, K.A. Watson, et al, Dispersion of SWNTs by in situ polymerization under sonication, Chem. Phys. Letts. Vol 364 (2002), p.303.

[5] Z. Fan, K. T. Hsiao, S. G. Advani, Experimental investigation of dispersion during flow of MWNT/polymer suspension in fibrous porous media, Carbon, Vol 42 (2004), p.871.


[6] T. Saito, K. Matsushige, K. Tanaka, Chemical treatment and modification of multi-walled carbon nanotubes, Physica B Vol 323, (2002), p.280.


[7] F. Liu, X. Zhang, J. Cheng, et al, Preparation of short CNTs by mechanical ball milling and their hydrogen adsorption behavior, Carbon, Vol 41 (2003), p.2527.