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http://dx.doi.org/10.7317/pk.2013.37.4.449

Influence of Electroless Ni-plated MWCNTs on Thermal Conductivity and Fracture Toughness of MWCNTs/Al2O3/Epoxy Composites  

Choi, Jeong-Ran (Department of Chemistry, Inha University)
Lee, Young-Sil (Cheil Industries Inc.)
Park, Soo-Jin (Department of Chemistry, Inha University)
Publication Information
Polymer(Korea) / v.37, no.4, 2013 , pp. 449-454 More about this Journal
Abstract
In this work, the effect of electroless Ni-plating of multi-walled carbon nanotubes (MWCNTs) on thermal conductivity and fracture toughness properties of MWCNTs/$Al_2O_3$/epoxy composites was investigated. The surface properties of the Ni-plated MWCNTs were determined by scanning electron microscopy (SEM), X-ray photoelectron spectrometry (XPS), and X-ray diffraction (XRD) analyses. Thermal conductivity was tested using a thermal conductivity measuring system. The fracture toughness of the composites was carried out through the critical stress intensity factor ($K_{IC}$) measurement. As a result, the electroless Ni-plated MWCNTs led to a significant change of surface characteristics of the MWCNTs. Thermal conductivity and fracture toughness of the MWCNTs/$Al_2O_3$/epoxy composites were greater than those of non-treated ones. These results were probably due to the improvement of intermolecular interaction between the Ni-MWCNTs and the matrix resins.
Keywords
multi-walled carbon nanotubes(MWCNTs); alumina; epoxy resins; thermal conductivity;
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