Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/11108
Title: Enhancing the Heat Transfer Efficiency in Graphene-Epoxy Nanocomposites Using a Magnesium Oxide-Graphene Hybrid Structure
Authors: Du, FP
Yang, W
Zhang, F
Tang, CY 
Liu, SP
Yin, L
Law, WC 
Keywords: Composites
Epoxy
Graphene
Magnesium oxide
Thermal conductivity
Issue Date: 2015
Publisher: American Chemical Society
Source: ACS applied materials and interfaces, 2015, v. 7, no. 26, p. 14397-14403 How to cite?
Journal: ACS applied materials and interfaces 
Abstract: Composite materials, such as organic matrices doped with inorganic fillers, can generate new properties that exhibit multiple functionalities. In this paper, an epoxy-based nanocomposite that has a high thermal conductivity and a low electrical conductivity, which are required for the use of a material as electronic packaging and insulation, was prepared. The performance of the epoxy was improved by incorporating a magnesium oxide-coated graphene (MgO@GR) nanomaterial into the epoxy matrix. We found that the addition of a MgO coating not only improved the dispersion of the graphene in the matrix and the interfacial bonding between the graphene and epoxy but also enhanced the thermal conductivity of the epoxy while preserving the electrical insulation. By adding 7 wt % MgO@GR, the thermal conductivity of the epoxy nanocomposites was enhanced by 76% compared with that of the neat epoxy, and the electrical resistivity was maintained at 8.66 × 1014 Ωm.
URI: http://hdl.handle.net/10397/11108
ISSN: 1944-8244
EISSN: 1944-8252
DOI: 10.1021/acsami.5b03196
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