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ISSN 2063-5346
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DYNAMIC MECHANICAL ANALYSIS OF GRAPHENE PARTICLE REINFORCED EPOXY COMPOSITES FOR NANO HYBRID STRUCTURES

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T Malyadri, Dr J Suresh Kumar
» doi: 10.48047/ecb/2023.12.4.232

Abstract

Inthisexperimentationfabricatingbasaltglassfiberreinforcedbygrapheneusinghandlayuptechniqueandhydraulic press. The materials which are used in the fabrication are basalt fabric,glass fiber,epoxy,hardener and graphene particles. The resin mixture is the combination of epoxy resin,hardener and graphene. The mixture formed by the combination of resin and hardener in the ratio 10:1. The graphene is mixed based on the weight percentage (0.2,0.4,0.6,0.8) required as mentioned above with respect to resin.The dynamic mechanical properties of graphene particle reinforced epoxy composites were investigated. Dynamic mechanical analysis(DMA) on the samples of 0.2, 0.4, 0.6, 0.8 are conducted to determine the dynamic properties like storage modulus, loss modulus, tan delta, stiffness, maximum stress that can be with stand by the samples and determine the cole-colepoint.Thegraphslikestoragemodulusvstemperature,lossmodulusvstemperature,stiffnessvstemperature,tandelta vs temperature, stress vs temperature and cole-cole plot are plotted.The glass transition temperature of the nano composites can be calculated using dynamic mechanical analysis (DMA). At a temperature of 1000C, the storage modulus and loss tangent were evaluated at frequencies ranging from 9.2 Hz to 331 Hz. Models from the literature are used to discuss and illustrate how grapheneparticlesaffectthetemperatureandfrequencybehaviorofdynamicmechanicalcharacteristics.Additionally,theglass transitiontemperaturewasdeterminedasafunctionofthegrapheneparticlesandwasconnectedtothefindingsfortheapparent activation energies ofrelaxation.

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