Equivalent Thermal Conductivity of Epoxy Composites Filled with Aluminium and Red Mud Particles

TL;DRAbstract

The present research deals with the effect of volume fraction of filler particles on the effective thermal conductivity (keff) for polymer composites. This work sees an opportunity of enrichment of heat conduction ability of a typical particulate filled polymer composite. A mathematical correlation for the of polymer composites filled with elliptical shape particles is developed using the law of minimal thermal resistance and equal law of the specific equivalent thermal conductivity. To validate this mathematical model, two sets of epoxy based composites, with filler content ranging from 0 to 25 vol % have been prepared by simple hand lay-up technique. For first set, micro-sized aluminium particles are chosen as filler whereas for second set red mud is taken as a filler material whereas matrix material remains epoxy. Thermal conductivities of these composite samples are measured as per ASTM standard E-1530 by using the Unitherm™ Model 2022 tester. Experimentally measured values are the

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