Abstract

Single-wall carbon nanotubes (SWNTs) were used to augment the thermal transport properties of industrial epoxy. Samples loaded with 1 wt % unpurified SWNT material showed a 70% increase in thermal conductivity at 40 K, rising to 125% at room temperature; the enhancement due to 1 wt % loading of vapor grown carbon fibers was three times smaller. Electrical conductivity data showed a percolation threshold between 0.1 and 0.2 wt % SWNT loading. The Vickers hardness rose monotonically with SWNT loading up to a factor of 3.5 at 2 wt %. These results suggest that the thermal and mechanical properties of SWNT-epoxy composites are improved, without the need to chemically functionalize the nanotubes.

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Year
2002
Type
article
Volume
80
Issue
15
Pages
2767-2769
Citations
1528
Access
Closed

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M. J. Biercuk, M. C. Llaguno, M. Radosavljevic et al. (2002). Carbon nanotube composites for thermal management. Applied Physics Letters , 80 (15) , 2767-2769. https://doi.org/10.1063/1.1469696

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DOI
10.1063/1.1469696