Conductivities of Graphite Fiber Composites with Single-Walled Carbon Nanotube Layers
- Conductivities of Graphite Fiber Composites with Single-Walled Carbon Nanotube Layers
- 유장현; 김한상
- Carbon fiber composites; Carbon nanotubes; Electrical conductivity; Thermal conductivity
- Issue Date
- International Journal of Precision Engineering and Manufacturing
- VOL 12, NO 4, 745-748
- The present study investigates the potential of air-spraying method in enhancement of electrical and thermal conductivities.
Single-walled carbon nanotubes (SWCNTs) functionalized with carboxylic acid groups were air-sprayed on the surface of
carbon fiber prepreg. The prepregs were stacked up and processed to carbon fiber laminates with SWCNTs layered between
plies. From scanning electron microscopy, it was discovered that SWCNTs formed thin bands between carbon fiber layers
and did not transport deep into the thickness direction due to low resin flow during cure. As it was hypothesized prior to
experiments, the electrical conductivity was significantly enhanced by using a higher concentration of SWCNTs, while no
amelioration for thermal conductivity was observed.
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