Effect of Nanographite on Electrical Mechanical and Wear Characteristics of Graphite Epoxy Composites

Abstract

Effect of weight fraction (WF) of nanographite (NG, 400 nm) on electrical, mechanical and wear and characteristics of graphite epoxy composites (GECs) were investigated. For this purpose, a series of GECs was prepared through dispersion of various WF of NG into epoxy resin, followed by curing with polyamine. Dispersion of NG into epoxy matrix and onward formation of GECs and was revealed through UV, Fourier transformed spectra and atomic force microscopy (AFM). Photoelastic analysis in combination with AFM reveals the presence of uniformly dispersed domain of NG into stress free GECs with fringe order ranging 0.23 - 0.61 under compression of 8 - 20 kgf. GECs have rendered a rising trend in DC conductance ranging 98.32 - 0.54 μS/cm with electrical percolation threshold at 175 WF of NG. GECs have shown enhanced compressive, impact, tensile, strength, Rockwell hardness and wear resistance at 200 WF of NG. In general, GECs has shown a marginal modification in their compressive strength by 5.30 % over cured epoxy. However, their impact and tensile strengths were largely improved to 31.78% and 43.98% over cured epoxy. The present manuscript provides a novel method of modification in electrical, mechanical and wear behaviour epoxy through introducing NG as a novel alternative to traditionally used graphite as filler for development of GECs.

Molecular dynamic studies into the comparative optimization of thermo-mechanical characters of nano-composites of Ag and Cu reinforced by Graphene

“…These ongoing developments have seen a substantial rise of Gr-based composites usage in wide range of scientific applications such as, preparation of flexible wearable protective gears [ 29 , 30 ], production of automotive [ 31 , 32 ], health surveillance [ 33 , 34 ], intelligent systems development [ 35 , 36 ] and military applications [ 37 , 38 ].…”

Effect of Organo Montmorillonite Nanoclay on Mechanical Properties Thermal Stability and Ablative Rate of Carbon fiber Polybenzoxazine Resin Composites

“…Many studies on nanofillers such as nanosilica, nanographite, carbon nanotube, organo-nanoclay, polyhedral oligomer silsesquioxane (POSS), and nanozirconium have been published in the literature to improve the thermomechanical efficiency of high temperature polymer composites [6][7][8][9][10][11] . Organic treated montmorillonite nanoclay is the most commonly used filler since it is readily available and miscible with resin systems.…”