Gamma Attenuation and Mechanical Characteristics of a Lead/NBR/SBR Rubber Composite with Black Nanocarbon Reinforcement

Romisaa Gamal, Elsayed Salama (), Hassan Elshimy, Doaa E. El-Nashar, Assem Bakry and Mohamed Ehab
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Romisaa Gamal: Engineering Mathematics and Physics Department, Faculty of Engineering and Technology, Future University in Egypt (FUE), New Cairo 11835, Egypt
Elsayed Salama: Basic Science Department, Faculty of Engineering, The British University in Egypt (BUE), El Sherouk City 11837, Egypt
Hassan Elshimy: Physics Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
Doaa E. El-Nashar: Polymers and Pigments Department, National Research Centre, Giza 12622, Egypt
Assem Bakry: Physics Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
Mohamed Ehab: Engineering Mathematics and Physics Department, Faculty of Engineering and Technology, Future University in Egypt (FUE), New Cairo 11835, Egypt

Sustainability, 2023, vol. 15, issue 3, 1-17

Abstract: In this work, black nanocarbon-loaded 0–100 parts-per-hundred (phr) PbO-filled acrylonitrile butadiene rubber (NBR)/styrene-butadiene rubber (SBR) blend composites were prepared by using an ordinary standard rubber mixer. Both mechanical and gamma attenuation properties of the prepared samples were investigated. Maximum tensile strength and elongation at break were obtained at 40 phr PbO concentration. The obtained values for the mass attenuation coefficient with the increased PbO concentration from 0–100 phr ranged from 0.12–0.22 cm 2 /g at 0.239 MeV. Scanning electron microscope (SEM) with the elemental mapping analysis results showed high homogeneity at 40 phr of the prepared rubber composites, with some areas of elemental agglomeration at a high concentration of lead oxide. The obtained results highly recommend the use of the prepared nanocarbon-reinforced PbO/NBR/SBR blend compared to those previously used as personal protective equipment in radiation-shielding applications.

Keywords: NBR; SBR; mechanical properties; lead; gamma shielding; carbon nanocomposites (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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