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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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Published in: | Applied physics. A, Materials science & processing Materials science & processing, 2019-07, Vol.125 (7), p.1-8, Article 460 |
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Main Authors: | , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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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. |
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ISSN: | 0947-8396 1432-0630 |
DOI: | 10.1007/s00339-019-2747-x |