Carbon Nanotube/Mica Composite Powder Prepared by Substrate-induced Method

doi:10.3724/SP.J.1077.2007.01131

Abstract

Abstract: Carbon nanotube (CNT)/Mica conductice composite powder was prepared by a substrate-induced method. The mica was modified by poly (vinyl alcohol) (PVA) or polyacrylamide (PAM), and mixed with CNT suspension, then CNT adsorbed on mica surface. The resistivity (ρ) of composite powder was measured. XPS, SEM were used to characterize the obtained CNT/Mica. The results show that the resistivity is 2.0×10⁴ Ω·cm when the unmodified mica is used to prepare 1.0wt% CNT/Mica, while the resistivity can reach 86.6Ω·cm when modified mica is used. Modified mica can improve CNT adsorption and dispersion, and decrease the resistivity of CNT/Mica remarkably.

Key words: carbon nanotube, composite powder, dispersion, PVA

CLC Number:

O613

PENG Ke,ZHANG Qing-Tang,CHEN Guo-Qiang,ZHOU Gu-Min,LIN Hao-Qiang,QU Mei-Zhen1. Carbon Nanotube/Mica Composite Powder Prepared by Substrate-induced Method
[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2007.01131.

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Carbon Nanotube/Mica Composite Powder Prepared by Substrate-induced Method

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