journal article·2025-03-01Open access

Preparation and characterization of rubber-lead nanocomposite material as a protective shield against cobalt gamma radiation

College of Pharmacy, University of AL-Qadisiya, AL-Qadisiya 58002, Iraq, F. K. Dahash, A. K. Aobaid, Department of Physics, University of Anbar, Anbar 31001, Iraq., E. Koç, Department of Biomedical Engineering, Karabük University, Karabük 78050, Turkey, A. N. Saud, Biomedical Engineering, Al-Mustaqbal University College, Babylon 51002 Iraq, H. Al Maamori, Prosthetics & orthotics Engineering, Al-Mustaqbal University College, Babylon 51002 Iraq

Abstract

The current study investigates the potential of styrene-butadiene rubber (SBR) nanocomposite reinforced with nano-lead (N-Pb) as a protective shield against gamma radiation emitted from a Cobalt-60 (Co-60) source. The influence of varying N-Pb concentrations (50–300 parts per hundred parts of rubber, pphr) on the structural, morphological, and radiation-shielding characteristics was investigated. The nanocomposite was characterized using several analytical techniques, including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The results demonstrate that increasing the N-Pb concentration leads to enhanced crystallinity, improved homogeneity, and significantly enhanced gamma radiation shielding capabilities of the material. Notably, the nanocomposite exhibited a substantial decrease in gamma count rate (31.9% reduction with 300 pphr N-Pb), mean free path (81% decrease), half-value layer (77% decrease), and tenth-value layer (87% decrease) as the N-Pb content increased. These findings highlight the promising potential of SBR-N-Pb nanocomposites as a cost-effective and efficient shielding material for various gamma radiation applications.
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Research context

OpenAlex topics: Radiation Shielding Materials Analysis · Graphite, nuclear technology, radiation studies · Polymer Nanocomposite Synthesis and Irradiation

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