Investigation of Electrical and Thermal Properties of Reduced Graphene Oxide–Multiwalled Carbon Nanotubes/PMMA Hybrid Nanocomposite

摘要

Electrical and thermal properties of the hybrid composites, prepared using reduced graphene oxide (rGO), multi-walled carbon nanotubes (MWCNTs), and Poly (methyl methacrylate) (PMMA) have been investigated. In this hybrid composite, the effect of rGO wt.% in MWCNTs/PMMA composite has been investigated. The investigation demonstrates that the rGO–MWCNTs/ PMMA hybrid composite achieved considerable improvements in electrical properties compared to the MWCNTs/PMMA and rGO/PMMA composites. The hybrid nanocomposite exhibits a percolation threshold of around 0.743 wt.% which is less than that of MWCNTs/PMMA (pc = 0:838wt:%) and rGO/PMMA (p_c = 1wt:%) composites and has a maximum conductivity of 1.546×10~(-1)S cm~(-1) with a filler content of 6 wt.% rGO. The experimentally observed improved electrical and thermal properties as a result of increased rGO wt.% in MWCNTs/PMMA are attributed to a synergistic effect of MWCNTs and rGO. The experimentally observed physical properties of the rGO–MWNTs/PMMA nanocomposite suggest it as potential material for future applications.