Efficient, flexible and lead-free composite based on room temperature vulcanizing silicone rubber/W/Bi2O3 for gamma ray shielding application

Atashi, Peyman; Rahmani, Sohrab; Ahadi, Behzad; Rahmati, A.H.

doi:10.1007/s10854-018-9344-1

Cited by 56 publications

(36 citation statements)

References 25 publications

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“…The half and tenth value layer and relaxation length of the composites were found to decrease with an increase in the filler concentration (Ambika et al 2017 ). Nanotungsten (W) dispersed polymer composite was significant 75% for 133Ba (≈ 0.3 meV) compared to the microtungsten (W) composites (Das et al 2009 ), and also silicone rubber matrix dispersed with 37.5% weight of tungsten (W) and bismuth oxide (Bi 2 O 3 ) confirmed good gamma-ray-shielding performance compared to lead (Atashi et al 2018 ). Tungsten oxide (WO 3 ) and bismuth oxide (Bi 2 O 3 ) nanoparticles improved the radiation shielding properties of hematite–serpentine concrete (HSC) (Tekin and Issa 2018 ) and emulsion polyvinyl chloride (EPVC) (Shik and Gholamzadeh 2018 ).…”

Section: Polymer Composites For Gamma-radiation Shieldingmentioning

confidence: 98%

“…In contrast to the past, polymer and its composites offer promising suitable alternative candidates to lead and concrete in the field of radiation shielding due to its lightweight, durability, flexibility along with superior physical, mechanical, optical, and radiation resistance properties (Ambika et al 2017 ; Alavian et al 2020 ). Besides, polymers can easily be doped with sizeable amounts of high atmic number (high-Z) materials to form their composites that are more competent radiation shields (Atashi et al 2018 ).…”

Section: Introductionmentioning

confidence: 99%

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Polymeric composite materials for radiation shielding: a review

et al. 2021

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The rising use of radioactive elements is increasing radioactive pollution and calling for advanced materials to protect individuals. For instance, polymers are promising due to their mechanical, electrical, thermal, and multifunctional properties. Moreover, composites made of polymers and high atomic number fillers should allow to obtain material with low-weight, good flexibility, and good processability. Here we review the synthesis of polymer materials for radiation protection, with focus on the role of the nanofillers. We discuss the effectivness of polymeric materials for the absorption of fast neutrons. We also present the recycling of polymers into composites.

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Section: Polymer Composites For Gamma-radiation Shieldingmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Polymeric composite materials for radiation shielding: a review

et al. 2021

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“…They found that the PVA/WO 3 composite can be considered as a shield for the gamma energy at the level of 662, 778, 964, 1112, 1170, 1130, and 1407 keV 18 . Later, Atashi et al fabricated a flexible silicone rubber/W/Bi 2 O 3 by an open mold cast technique 19 . Final composites result in a high attenuation coefficient for gamma rays.…”

Section: Introductionmentioning

confidence: 99%

Introducing a novel low energy gamma ray shield utilizing Polycarbonate Bismuth Oxide composite

Mehrara

Malekie

Kotahi

et al. 2021

Sci Rep

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The fabrication of different weight percentages of Polycarbonate-Bismuth Oxide composite (PC-Bi2O3), namely 0, 5, 10, 20, 30, 40, and 50 wt%, was done via the mixed-solution method. The dispersion state of the inclusions into the polymeric matrix was studied through XRD and SEM analyses. Also, TGA and DTA analyses were carried out to investigate the thermal properties of the samples. Results showed that increasing the amount of Bi2O3 into the polymer matrix shifted the glass transition temperature of the composites towards the lower temperatures. Then, the amount of mass attenuation coefficients of the samples were measured using a CsI(Tl) detector for different gamma rays of 241Am, 57Co, 99mTc, and 133Ba radioactive sources. It was obtained that increasing the concentration of the Bi2O3 fillers in the polycarbonate matrix resulted in increasing the attenuation coefficients of the composites significantly. The attenuation coefficient was enhanced twenty-three times for 50 wt% composite in 59 keV energy, comparing to the pure polycarbonate.

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“…Canlıları iyonlaştırıcı radyasyonun zararlarından korumak için geleneksel zırh malzemesi olarak bilinen kurşun bloklar ve ağır agregalarla üretilen betonlar uzun yıllardır kullanılmaktadır [1,2]. Kurşunun toksik etkileri ve kurşun, beton blokların kullanımı açısından bazı dezavantajları sebebiyle araştırmacılar yeni zırh malzemelerine yönelmişlerdir [3,4].…”

Section: Introductionunclassified