Effect of CNT Arrays on Electrical and Thermal Conductivity of Epoxy Resins

Abstract:

With the development of electronic technology, thermal interface materials (TIMs) of excellent thermal conductivity have been desired for circuit integration. In this study, carbon nanotube arrays (CNTAs) were utilized to prepare high thermal conductive composites by infiltration into epoxy resin. The composite was cured in a drying oven at 60 °C for 4 h. The thermal conductivity of the composite along axial direction reaches 2.24 W/mK at 120 ^oC, which is about 10 times of that of pure epoxy resin. The results indicated that the great promise of epoxy/CNTA composites as thermal interface materials. However, the electrical conductivity still remains at a low level, although it is increased by orders of magnitudes, the insulativity is beneficial for the application of this composite in electrical industry.

• Periodical: Advanced Materials Research (Volume 1043)
• Pages: 27-30
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1043.27
• Online since: October 2014
• Authors: Liang Ke Wu, Ji Ying*
• Keywords: CNT Array, Electrical Conductivity, Epoxy Resin, Thermal Conductivity

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