Eggshell-derived particle composites with epoxy resin for enhanced radiation shielding applications

Area of Science:

• Materials Science
• Radiation Physics
• Composite Materials

Background:

• Eggshells, rich in calcium carbonate, are an abundant waste material.
• Developing effective and sustainable radiation shielding materials is crucial.
• Epoxy resin composites offer tunable properties for various applications.

Purpose of the Study:

• To investigate the efficacy of eggshell-derived particle composites for radiation shielding.
• To evaluate the impact of eggshell particle size on composite performance.
• To determine the optimal composition for enhanced radiation attenuation.

Main Methods:

• Eggshells were processed into small, medium, and large particles.
• Particles were incorporated into epoxy resin at a 50% weight ratio.
• Radiation shielding (HVL, LAC) and mechanical properties were tested.

Main Results:

• Small particle composites exhibited superior mechanical strength (97 MPa stress) compared to large particles (52 MPa stress).
• Small particle composites demonstrated the highest Linear Attenuation Coefficient (LAC) and lowest Half-Value Layer (HVL).
• Particle size significantly influences both mechanical integrity and radiation shielding effectiveness.

Conclusions:

• Finely ground eggshell particles enhance epoxy resin composites for radiation shielding.
• Particle size optimization is critical for achieving superior radiation attenuation and mechanical properties.
• Eggshell composites present a cost-effective and environmentally friendly solution for radiation protection.