Synergistic effect of hybrid graphene nanoplatelet and multi-walled carbon nanotube fillers on the thermal conductivity of polymer composites and theoretical modeling of the synergistic effect

Category: Transient Plane Source

Author(s): Hoi Kil Choi, Hyun Su Kim, Jaesang Yu, Seong Yun Kim

Keywords: Graphene nanoplatelet, multi-walled carbon nanotubes, Polymer-matrix composites, Thermal Conductivity, Transient plane source (TPS) method

Abstract: In this study, graphene nanoplatelets (GNP) and multi-walled carbon nanotube fillers (MWCNT) were simultaneously added to a polycarbonate matrix, in an attempt to improve thermal conductivity. Thermal conductivities of the composites were measured at room temperature. Results show that MWCNTs can improve thermal conductivity by filling gaps between GNPs. Additionally, a small amount of well dispersed MWCNTs increased thermal conductivity by 23% compared to composites containing only GNPs.

Reference: Composites: Part A (2016), 88: 79-85

DOI: 10.1016/j.compositesa.2016.05.022

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