Understanding Glass Transition Dynamics in Epoxy Reinforced with Hybrid Carbon Black and Silica Nanoparticles

Abstract

The development of nanocomposites with enhanced multifunctional properties is a critical focus in material science. This study addresses the inherent limitations of epoxy resins, such as thermal constraints, by incorporating hybrid carbon black (CB) and silica (SiO2) nanofillers. The aim is to investigate the effects of these hybrid reinforcements on the glass transition dynamics of epoxy nanocomposites. Utilizing a systematic approach, epoxy nanocomposites were prepared with varying concentrations and ratios of CB and SiO2. The glass transition dynamics were analyzed through differential scanning calorimetry (DSC) and Thermogravimetric analysis (TGA). Results demonstrated that the addition of 3 wt% SiO2 elevated the glass transition temperature (Tg) by 18°C. The hybrid combination of 4 wt% CB and 2 wt% SiO2 provided an optimal balance, achieving a significant improvement in the thermal properties. The study confirms that hybrid nanofillers can effectively enhance the multifunctional properties of epoxy nanocomposites. It is recommended that upcoming study be focus on application of these production process, researching the long-term durability of these nanocomposites, and utilizing other potential hybrid systems to supplement optimum performance.