Thermal stability and electromagnetic interference of Epoxy-graphene/hybrid composite materials

Abstract

Due to rapid growth in technological development and increased use of automated devices have captivated a meteorite surge in electronic pollution, such as electromagnetic interference (EMI), the noise from electronic equipment, and radiofrequency intrusion, which leads to the malfunction of electronic components. Metals and their alloys can be excellent EMI protecting materials, but their hefty weight, poor corrosion resistance, and cost expenses have restricted their use in this field. The present investigation deals with the preparation of epoxy hybrid nanocomposites. Also, Thermogravimetric analysis (TGA) with a validation study using S-band measurements of EMI shielding effectiveness (SE) of the prepared composites. The result displays an increase in thermal stability of epoxy with 0.5 wt% graphene further points to an increase in thermal stability by adding conducting polymer to it. An epoxy with 0.5 wt% graphene exhibits better microwave absorption, and also the addition of conducting polymer to it increases the absorption quality.