The Structure and Electrical Conductivity of the CNTs/PMMA Nanocomposites Foams

Abstract:

Carbon nanofillers/polymer nanocomposites foam with electrical conductivity was a novel functional material. In this study, the CNTs/PMMA nanocomposites were prepared by the combination of ultrasonic dispersion and anti-solvent precipitation method. Then supercritical foaming method was untilized applied to prepare the foams. The morphology and the electrical conductivity of the foams were investigated. The conductivity of the nanocomposites showed a conductor behavior which was increased t from 1×10^-6 S/cm to 1×10^-5S/cm with the CNTs content range from 1 wt.% to 2.5 wt.%. After foaming, the cell size of the foams was below 10 μm while the cell density increased 2~3 orders of magnitude compared with PMMA foams. The produced CNTs/PMMA nanocomposites foams exhibited a wide range electricity conductivity of the nanofiller contents. Key words: structure, electrical conductivity, CNTs, nanocomposites foams

• Periodical: Key Engineering Materials (Volumes 602-603)
• Pages: 1048-1051
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.602-603.1048
• Online since: March 2014
• Authors: Qiang Shen, Huan Yuan, Yuan Lu Xiong, Guo Qiang Luo*, Lian Meng Zhang
• Keywords: Cnts, Electrical Conductivity, Nanocomposites Foams, Structure

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