Lead Free Multilayered Polymer Composites for Radiation Shielding

Area of Science:

• Materials Science
• Polymer Science
• Radiation Physics

Background:

• Silicone-based polymer composites are explored for radiation shielding due to their versatile properties.
• High atomic number additives enhance the radiation attenuation capabilities of composite materials.

Purpose of the Study:

• To analyze the X-ray attenuation and mechanical properties of novel lead-free, multi-layered silicone composites.
• To investigate the potential of tin, cerium oxide, tungsten oxide, and bismuth additives in silicone composites for radiation shielding.

Main Methods:

• Fabrication of multi-layered silicone composite structures with varying concentrations of tin, cerium oxide, tungsten oxide, and bismuth.
• Evaluation of X-ray attenuation properties of the developed materials.
• Assessment of the mechanical properties of the lead-free composite layers.

Main Results:

• The developed lead-free layered structures demonstrate effective X-ray shielding comparable to lead.
• Additive concentrations in silicone composites can be adjusted to achieve desired shielding performance.
• The fabricated materials exhibit flexibility alongside radiation shielding capabilities.

Conclusions:

• Silicone composites with specific high atomic number additives provide a viable lead-free alternative for radiation shielding.
• Tunable additive concentrations allow for the creation of flexible, lead-equivalent radiation shielding materials.
• These findings pave the way for advanced, multifunctional radiation shielding solutions.