A comparative study between detonation nanodiamonds (DNDs) and carbon nanotubes (CNTs) as low concentration additives to epoxy composites is presented. The dispersibility of the different nanocarbons in resin solutions leading to uniform composite formation is also discussed. Significant increase in glass transition temperature was observed, which were 37 °C and 17 °C for DNDs and CNTs, respectively. Unlike the pure epoxy, the fractured surface of both composites showed resistance to crack propagation. Tensile properties of DNDs and CNTs composites showed enhancement of 6.4% and 2.9%, respectively. The nanocomposites also showed an increase in microhardness by 41% for DNDs and 12% for CNTs, and a decrease in electrical resistivity by 2 orders of magnitude, with the CNTs showing lower resistivity. In general, the DNDs were found to be quite effective and at the reported concentrations between 0.1% and 0.5% and showed superior enhancement compared to the CNTs.
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February 2013
Research-Article
Detonation Nanodiamonds and Carbon Nanotubes as Reinforcements in Epoxy Composites—A Comparative Study
Sagar Roy,
Sagar Roy
Department of Chemistry and Environmental Science,
New Jersey Institute of Technology
,Newark, NJ 07102
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Kabir Mitra,
Kabir Mitra
Department of Mechanical Engineering,
New Jersey Institute of Technology
,Newark, NJ 07102
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Somenath Mitra
Somenath Mitra
1
e-mail: mitra@njit.edu
Department of Chemistry and Environmental Science,
Department of Chemistry and Environmental Science,
New Jersey Institute of Technology
,Newark, NJ 07102
1Corresponding author.
Search for other works by this author on:
Sagar Roy
Department of Chemistry and Environmental Science,
New Jersey Institute of Technology
,Newark, NJ 07102
Kabir Mitra
Department of Mechanical Engineering,
New Jersey Institute of Technology
,Newark, NJ 07102
Somenath Mitra
e-mail: mitra@njit.edu
Department of Chemistry and Environmental Science,
Department of Chemistry and Environmental Science,
New Jersey Institute of Technology
,Newark, NJ 07102
1Corresponding author.
Manuscript received April 8, 2013; final manuscript received May 17, 2013; published online July 11, 2013. Assoc. Editor: Abraham Wang.
J. Nanotechnol. Eng. Med. Feb 2013, 4(1): 011008 (7 pages)
Published Online: July 11, 2013
Article history
Received:
April 8, 2013
Revision Received:
May 17, 2013
Citation
Roy, S., Mitra, K., Desai, C., Petrova, R., and Mitra, S. (July 11, 2013). "Detonation Nanodiamonds and Carbon Nanotubes as Reinforcements in Epoxy Composites—A Comparative Study." ASME. J. Nanotechnol. Eng. Med. February 2013; 4(1): 011008. https://doi.org/10.1115/1.4024663
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