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Indian Journal of Advances in Chemical Science Volume: 8,
Issue :1 , January 2020 |
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ISSN No.: 2320-0898 (Print);
2320-0928 (Electronic)
DOI: 10.22607/IJACS.2020.80003 |
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Research Article
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Water Aging Effects on
Graphene Nanoplatelets and Multi-walled Carbon Nanotube Reinforced
Epoxy Glass Fiber Nanocomposites |
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B. M. Madhu*, T. V. Rashmi
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ABSTRACT |
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Nanocomposites reinforced with hybrid
fillers of multi-walled carbon nanotubes (MWCNTs) and graphene
nanoplatelets (GNPs) were developed, aimed at improving electrical
and morphological properties of the hybrid nanocomposites while
reducing the cost of the final product. GNPs and MWCNTs nanofillers
have shown improved electrical and morphological properties with
most polymers. In this work, the effect of short-term water aging
for 1440 h on MCWNTs and GNPs reinforced epoxy glass fiber
nanocomposites was studied. Epoxy nanocomposites were prepared with
varying combinations of MCWNTs and GNPs (2:1, 2:2, and 2:3wt. %) as
conducting fillers and their electrical conductivity was evaluated
after short-term water aging. It was shown that the addition of
MCWNTs and GNPs enhanced the electrical conductivity of composites:
A low percolation threshold was achieved with 2 wt. % MCWNTs and 3
wt. % GNPs. The addition of MCWNTs enhanced the electrical
conductivity and dielectric constant, confirming the synergistic
effect of CNTs as multifunctional filler. Microstructural
investigations and morphology of nanocomposites were investigated
using Fourier transform-infrared spectroscopy and X-ray diffraction.
The novelty of this work arises from the combination of two
conducting fillers with different geometry and aspect ratios as well
as different dispersion characteristics. The results obtained from
the electrical measurements after water aging on hybrid
nanocomposites indicates slight increases in electrical
conductivity. |
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Key words: Graphene
nanoplatelets, Multi-walled carbon nanotubes, Pultruded epoxy glass
fiber nanocomposites, Electrical conductivity, Fourier-transform
infrared spectroscopy. |
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[Download Full Article
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