In the present work, carbon foam (CF) coupled multi-wall carbon nanotubes (MWCNTs) and CF/MWCNTs coupled nanodiamond (NDs) hybrid composites were prepared by the direct treatment of MWCNTs and NDs with pretreatment pitches through foaming, graphitization, and carbonization process. Both series of CF composites were compared and explored by Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy and energy dispersive X-ray spectroscopy techniques. It was investigated that the structural morphology, pore size and pore uniformity upgraded with the increment of MWCNTs content, however, the effect of ND particles in this aspect was more influential. Furthermore, the effect of additive loading of MWCNTs and NDs on the mechanical, electrical and thermal properties of CF composites were checked. The results revealed that maximum compressive strength 15.8 MPa and electrical conductivity 30.2×103 S/m of CFs were obtained at 4 wt.% MWCNTs and ND loadings respectively. While the maximum thermal conductivity value of 32.2 Wm-1k-1 was revealed by CFs having 2 wt.% MWCNTs and NDs loadings.

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9
This is a list of supplementary files associated with this preprint. Click to download.
Loading...
Posted 12 Mar, 2021
Posted 12 Mar, 2021
In the present work, carbon foam (CF) coupled multi-wall carbon nanotubes (MWCNTs) and CF/MWCNTs coupled nanodiamond (NDs) hybrid composites were prepared by the direct treatment of MWCNTs and NDs with pretreatment pitches through foaming, graphitization, and carbonization process. Both series of CF composites were compared and explored by Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy and energy dispersive X-ray spectroscopy techniques. It was investigated that the structural morphology, pore size and pore uniformity upgraded with the increment of MWCNTs content, however, the effect of ND particles in this aspect was more influential. Furthermore, the effect of additive loading of MWCNTs and NDs on the mechanical, electrical and thermal properties of CF composites were checked. The results revealed that maximum compressive strength 15.8 MPa and electrical conductivity 30.2×103 S/m of CFs were obtained at 4 wt.% MWCNTs and ND loadings respectively. While the maximum thermal conductivity value of 32.2 Wm-1k-1 was revealed by CFs having 2 wt.% MWCNTs and NDs loadings.

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9
This is a list of supplementary files associated with this preprint. Click to download.
Loading...