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Título

Electrical conductivity and transparency of polymer hybrid nanocomposites based on poly(trimethylene terephthalate) containing single walled carbon nanotubes and expanded graphite

AutorPaszkiewicz, S.; Szymczyk, A.; Sui, X .M.; Wagner, H. D.; Linares, Amelia ; Cirera, A.; Varea, A.; Ezquerra, Tiberio A. ; Rosłaniec, Z.
Palabras claveOptical properties
Nanotubes
Graphene and fullerenes
Films
Composites
Dielectric properties
Fecha de publicación14-sep-2017
EditorJohn Wiley & Sons
CitaciónJournal of Applied Polymer Science 134: 1 (2017)
ResumenSingle-walled carbon nanotubes (SWCNT)/expanded graphite (EG)/poly(trimethylene terephthalate) (PTT) hybrid nanocomposites were prepared via in situ polymerization. Raman spectroscopy and scanning electron microscopy (SEM) were employed to determine both, purity and morphology of the nanofillers and the dispersion of nanotubes and nanosheets. The electrical and optical properties of thin polymer films based on both “single” nanocomposites and hybrid nanocomposites were studied. For PTT/SWCNT nanocomposites, results confirmed that films optical transmittance decreases as the concentration of SWCNT increases, attaining almost no optical transmittance for 0.3 wt % of nanofiller. Conversely, the electrical conductivity of nanocomposites was found to increase by increasing the nanofiller amount and the σ values indicate that percolation occurs at a very low SWCNT content (around 0.05 wt %). In the case of PTT/SWCNT + EG nanocomposites, when the content of SWCNT is 0.05%, the hybrid system presents lower conductivity than that corresponding to the “single” nanocomposite. The incorporation of additional EG to the PTT/SWCNT nanocomposite has a small effect on the electrical conductivity but inhibits the transparency of the system. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44370.
Descripción9 pags., 10 figs.
Versión del editorhttp://doi.org/10.1002/app.44370
URIhttp://hdl.handle.net/10261/160770
Identificadoresdoi: 10.1002/app.44370
issn: 1097-4628
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