Effect of 4-Aminobutyltriethoxysilane Modified Al2O3 Nanoparticles on the Dielectric Properties of Epoxy Nanocomposites for High Voltage Applications

The diglycidyl ether of bisphenol-A (DGEBA) epoxy resin (GY260) is commonly used in this work. Silane (4-Aminobutyltriethoxysilane (ABTES)) acted as a coupling agent and attached easily with nanoparticles surface. Triethylenetetramine (TEPA), also denoted as Tetrene, was used as a curing agent. The ABTES-Al2O3 loaded epoxy nanocomposites were synthesized followed by their dielectric permittivity and tan delta value in a frequency range of 50 to 5 × 106 Hz were studied. At 30 °C, 60 °C and 120 °C temperatures, epoxy resin nanocomposites show excellent results. The dielectric constant, dielectric loss and AC conductivity variation make ABTES-Al2O3 loaded epoxy nanocomposites suitable for high-performance electrical and thermal applications. The dielectric investigations of ABTES-Al2O3 displayed extraordinary varieties with expanding recurrence and as for their stage. There is extensive enthusiasm for utilizing these new materials in capacitor applications.