A route for polymer nanocomposites with engineered electrical conductivity and percolation threshold

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Abstract

Polymer nanocomposites with engineered electrical properties can be made by tuning the fabrication method, processing conditions and filler's geometric and physical properties. This work focuses on investigating the effect of filler's geometry (aspect ratio and shape), intrinsic electrical conductivity, alignment and dispersion within the polymer, and polymer crystallinity, on the percolation threshold and electrical conductivity of polypropylene based nanocomposites. The conductive reinforcements used are exfoliated graphite nanoplatelets, carbon black, vapor grown carbon fibers and polyacrylonitrile carbon fibers. The composites are made using melt mixing followed by injection molding. A coating method is also employed to improve the nanofiller's dispersion within the polymer and compression molding is used to alter the nanofiller's alignment. © 2010 by the authors.

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Kalaitzidou, K., Fukushima, H., & Drzal, L. T. (2010). A route for polymer nanocomposites with engineered electrical conductivity and percolation threshold. Materials, 3(2), 1089–1103. https://doi.org/10.3390/ma3021089

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