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Characterisation and electrical conductivity of polytetrafluoroethylene/graphite nanoplatelets composite films

Graphite nanoplatelets (GNPs), with a thickness of 3–10 graphene layers and lateral linear dimensions varying from 2 to 10 μm, were used to enhance the conductivity of polytetrafluoroethylene (PTFE) films. Ten composite films with the (GNPs) content of 0, 2, 3, 4, 5, 6, 8, 10, 15 and 20 wt% were obt...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2019-07, Vol.125 (7), p.1-8, Article 460
Main Authors: Shulga, Y. M., Melezhik, A. V., Kabachkov, E. N., Milovich, F. O., Lyskov, N. V., Irzhak, A. V., Dremova, N. N., Gutsev, G. L., Michtchenko, A., Tkachev, A. G., Kumar, Yogesh
Format: Article
Language:English
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Summary:Graphite nanoplatelets (GNPs), with a thickness of 3–10 graphene layers and lateral linear dimensions varying from 2 to 10 μm, were used to enhance the conductivity of polytetrafluoroethylene (PTFE) films. Ten composite films with the (GNPs) content of 0, 2, 3, 4, 5, 6, 8, 10, 15 and 20 wt% were obtained. These films were characterised using X-ray diffraction, infrared and Raman spectroscopy, scanning electron microscopy and X-ray photoelectron spectroscopy (XPS). The conductivity the conductivity of the composite film increases with an increase in GNP content from 0.00095 S cm −1 at 2% wt% of GNPs to 20.4 S cm −1 at 20% wt% of GNPs. Further, a chemical bond is formed between the graphite nanoplates and polymer chains according to the XPS spectra.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-019-2747-x