Synergetic effects of graphene platelets and carbon nanotubes on the mechanical and thermal properties of epoxy composites

Enhanced mechanical, thermal and flame retardant properties by combining graphene nanosheets and metal hydroxide nanorods for Acrylonitrile–Butadiene–Styrene copolymer composite

“…The enhancement in the TS is more significant than the values reported by the previous literatures [29,30]. According to Tang's work, the incorporation of carbon nanotubes slightly improves the TS of linear low density polyethylene/Ni2O3 compared with those of binary composites [29].An increase in mechanical strength was reported for epoxy/graphene nanoplate/carbon nanotube composites, where only 14.5% increase in the TS was obtained compared to epoxy/graphene nanoplate composites [30]. Compared to the ABSG2Co4, ABSG2Ni4 and ABSG2Fe4 show slightly reduced TS of 39.29 and 40.46 MPa, respectively, due to the decreased aspect ratio of Ni(OH)2 and FeOOH nanorods.…”

“…Such enhancement is attributed to the 3-D network structure formed by homogeneous dispersion of GNS and Co(OH)2, which facilitates the successful load transfer from the matrix to the nanofillers. The enhancement in the TS is more significant than the values reported by the previous literatures [29,30]. According to Tang's work, the incorporation of carbon nanotubes slightly improves the TS of linear low density polyethylene/Ni2O3 compared with those of binary composites [29].An increase in mechanical strength was reported for epoxy/graphene nanoplate/carbon nanotube composites, where only 14.5% increase in the TS was obtained compared to epoxy/graphene nanoplate composites [30].…”

Improving the thermal conductivity of epoxy resin by the addition of a mixture of graphite nanoplatelets and silicon carbide microparticles

“…The synergetic effect of GNPs and other nanofillers in improving the thermal conductivity of epoxy was also observed in the case of low total nanofiller loadings, i.e. 18 wt% total loading of GNPs and CB nanoparticles [14], 1wt% total loading of GNPs and MWCNTs [13], 2 wt% total loading of GNPs and MWCNTs [25] and ! 40 wt% total loading of GNPs and SWCNTs [4].…”

“…The addition of 0-D CB nanoparticles helped to increase the thermal conductivity of GNP/epoxy composites by improving the dispersion of GNPs, preventing the settling of GNPs and bridging the gaps among 2-D GNPs [14]. Long and tortuous 1-D CNTs were used to bridge adjacent 2-D GNPs as well as inhibit the aggregation of GNPs, resulting in a high contact area between GNP/CNT structures and epoxy matrix and thus a more efficient percolating nanofiller network with significantly reduced thermal interface resistances, consequently the thermal conductivity of epoxy filled with a mixture of GNPs and CNTs surpassed that of epoxy filled with pure GNPs or CNTs [4,13,25]. However, a further increase of thermal conductivity of epoxy by increasing the total nanofiller loading is hard to realize due to the increased filler aggregation and interfacial thermal resistance as well as dramatically increased viscosity.…”

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

“…Additionally, it was proposed that this type of bonding at the interface cannot effectively transfer the thermal vibration from the filler to the matrix [251]. Contrary to these studies, some other authors showed thermal conductivity improvements with employing the noncovalent functionalization [171,275,276]. For example, Teng et al functionalized graphene nanosheets (GNSs) through π-π stacking with functionalized pyrene molecules containing functional segmented polymer chains poly(glycidyl methacrylate) (PGMA), Py-PGMA.…”