Yao-Yi Cheng^*, Hung-Han Ko, Shang-Chih Chou, Pi-Sheng Ku

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Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taiwan.
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Abstract: 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.

Keywords: Polyimide; Carbon Nanotube; Plasma Treatment; Contact Angle

Cite this paper: 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.

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