Abstract
Glass fiber strengthened epoxy (GE) composites are notably used in the field of high voltage insulation due to their stronger overall performance at extended temperatures. This paper discusses the benefits of nano and micro fillers in enhancing the dynamic mechanical properties of GE composites with the information derived from Dynamic Mechanical Analysis (DMA) and Differential Scanning Calorimetry (DSC). The composites are manufactured by pultrusion technique through dispersion of micro and nano fillers using high shear mixing accompanied by way of ultrasonication. The results evinced that the GE composite with MgO reveals lowest damping factor with a reduction in a damping factor of 44%, reduction in loss modulus of 55% as well an increase in glass transition temperature (Tg) of 29% in contrast to that of GE composite except for fillers. The better performance might be attributed to better adhesion and dispersion of particles in epoxy resin which contributes extended load transfer.
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