Vol. 3 (06) pp. 1017-1023

DEVELOPMENT OF SILICONE RUBBER/LEAD OXIDE COMPOSITES AS GAMMA RAY SHIELDING MATERIALS

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  • Physics Department, Faculty of Science, Ain Shams University, Cairo, Egypt.
  • Polymers and Pigment Department, National Research Centre, Dokki, Cairo, Egypt.
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Abstract

Silicone rubber composite sheets filled with different concentrations (15-42wt. %) of lead oxide was fabricated inhouse to be used as ?-radiation shielding materials. The shielding properties of the composite (linear attenuation coefficient (µ) and total mass attenuation coefficient (µ/?)) have been evaluated using three radioactive point sources (232Th, 137Cs and 22Na) in the energy range (238 to 1275keV). When compared with the theoretical values which have been calculated by means of WinXcom program (version 3.1), a good agreement has been observed between the experimental and the theoretical results. The mechanical properties, such as tensile strength (?R), elongation at break (?R), Young’s modulus (E) and hardness (H) have been studied and discussed. It was found that, adding filler into the rubber matrix is one of the main factors that improve the physico-mechanical properties and the best results have been observed at 35 wt. % of lead oxide concentration.

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How to Cite This Article

S. U. El-Kameesy, D.E. El-Nashar, S. El-Fiki, W.R. Agami, Ahmad E. Younes (2015); DEVELOPMENT OF SILICONE RUBBER/LEAD OXIDE COMPOSITES AS GAMMA RAY SHIELDING MATERIALS , Int. J. of Adv. Res., 3 (06), 1017-1023, ISSN 2320-5407.

Corresponding Author

Ahmad Elsayed younes

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