Effect of graphene nano-platelets on mechanical and impact characteristics of carbon/Kevlar reinforced epoxy hybrid nanocomposites

Abstract

The influence of various graphene nano-platelets (GNPs) content on the tensile, flexural and Charpy impact characteristics of carbon, Kevlar and hybrid carbon/Kevlar fibers reinforced epoxy matrix composites was investigated. Both of composite configurations as carbon and Kevlar at outer and core skins were experimentally tested. The SEM images for flexural specimens were taken to observe the adhesion mechanism of GnPs particles with fiber/epoxy system. It is found that hybridization with Kevlar layers is contributed a positive effect on the hybrid carbon/Kevlar laminate structures in terms of tensile, flexural and impact behaviour. The incorporation of GnPs particles in hybrid and non-hybrid composite samples results in significant improvements in tensile, flexural and impact properties, and the greatest improvement occurs within the GnPs particle content of 0.1 and 0.25 wt%, indicating that the interfacial bonding between the matrix and the fibers is better due to the large surface area of the GnPs and the good entanglement between the GnPs layers and the matrix chains. The samples of impact test are experimented for edgewise and flatwise directions.

The effect of fiber orientation and stacking sequence on carbon/Kevlar/epoxy intraply hybrid composites under dynamic loading conditions

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Influence of MXene, graphene nanoplatelet and multi-walled carbon nanotube on mechanical properties, swelling and flammability behaviour of hybrid sisal/glass fibre reinforced epoxy laminate composites

“…Synthetic fibres, on the other hand, exhibit superior mechanical, thermal and electrical properties but they lag in their ability to get recycled and degraded [6]. Therefore, researchers are trying to use a combination of both the types of fibers as reinforcement in appropriate ratio which results in composites that exhibits much improved mechanical properties at low cost and causes minimal damage to the environment.…”

Enhanced interfacial and mechanical properties of glass fabric/epoxy composites via grafting silanized carbon nanotubes onto the fibers

“…23 Alsaadi et al found that the tensile strength of carbon-based, Kevlar, and hybridized carbon/Kevlar reinforced epoxy composites increased by 4.6%, 6.1%, and 8.2%, respectively, when 0.25 wt% graphene nanosheets (GNPs) were added. 24 Carbon nanotubes (CNTs) are ideal reinforcing fillers for GFRP owing to its splendid mechanical, thermal and conductive properties, as well as their large specific surface area, high aspect ratio and high cost performance. Especially, multi-walled carbon nanotubes (MWCNTs) are more suitable for engineering structural applications.…”