Eggshell-Derived Particle Composites with Epoxy Resin for Enhanced Radiation Shielding Applications

Abstract

This study explores the development and efficacy of eggshell-derived particle composites with epoxy resin for enhanced radiation shielding applications. Eggshells, predominantly composed of calcium carbonate were processed into particles of three distinct sizes: small, medium, and large. These particles were integrated into epoxy resin at a 50% weight ratio and characterized using a Laser Particle Size Distribution Analyzer. The mechanical properties and radiation shielding effectiveness of the composites were rigorously tested. Composites with large particles showed the weakest mechanical performance, with a maximum force of 5,674 N and stress of 52 MPa. Notably, small particle composites demonstrated superior results among the composites, with a maximum force of 9,125 N and stress of 97 MPa. Regarding radiation shielding properties, the small particle composites were the most effective, achieving the highest linear attenuation coefficient and the greatest reduction in radiation dose. This superior performance is attributed to the uniform dispersion and increased surface area of the smaller particles, which enhance radiation attenuation. These findings highlight the potential of using finely ground eggshell particles to create cost-effective, environmentally friendly materials for radiation protection, underscoring the importance of particle size optimization in the development of advanced composite materials.