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- W4308172912 abstract "Multilayered graphene nanoplatelets (MLGs) have been prepared by using the electrochemical technique, starting from thermally-expanded-graphite flakes. Structural properties of MLGs have been tested by SEM, X-ray diffraction, and nitrogen absorption technique. Electrical conductivity <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$(sigma=varepsilon_{0} varepsilon_{2} omega)$</tex> of MLG nanocomposites based on a DGEBA-epoxy resin have been determined by measuring complex dielectric permittivity <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$(varepsilon/varepsilon_{0}=varepsilon_{1}+j varepsilon_{2})$</tex> within the frequency <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$(omega/2pi)$</tex> range of 4–100 Hz, temperature <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$(T)$</tex> range of 90–350 <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$mathrm{K}$</tex> for mass loadings <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$(varphi_{m})$</tex> varied from 0 to 5%. The later correspond to volume loadings <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$(varphi_{v})$</tex> of 0-2.7 %. The dependences of <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$sigma$</tex> versus <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$omega, T$</tex> , and <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$varphi_{v}$</tex> and possible mechanisms of composite's conductivity have been discussed and a phenomenological model to describe charge transport on graphene-epoxy interfaces has been proposed." @default.
- W4308172912 created "2022-11-08" @default.
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- W4308172912 date "2022-10-10" @default.
- W4308172912 modified "2023-09-27" @default.
- W4308172912 title "Studying Loading-Temperature Effects in Electric Conductivity of Graphene-Epoxy Nanocomposites" @default.
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- W4308172912 doi "https://doi.org/10.1109/elnano54667.2022.9927046" @default.
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