Improved gamma radiation shielding traits of epoxy composites: Evaluation of mass attenuation coefficient, effective atomic and electron number

Aldhuhaibat, Mohammed J. R.; Amana, Maitham S.; Jubier, Najwa J.; Salim, A.A.

doi:10.1016/j.radphyschem.2020.109183

Cited by 76 publications

(20 citation statements)

References 12 publications

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“…Using NaI detector for gamma rays detection, the attenuation parameters of including the mass attenuation coefficient ( µ/ρ ), mean atomic number (< Z >), effective atomic cross section ( σ a ), effective atomic number ( Z eff ) plus electron number ( N eff ) for the samples: pure epoxy, aluminum oxide (Al 2 O 3 ) epoxy (6 and 15 weight %), and ferric oxide (Fe 2 O 3 ) epoxy/(6 and 15 weight %), were determined. With the increase in gamma-ray energy, mass attenuation coefficient and effective atomic cross-section values were decreased, whereas effective atomic and electron number values were increased (Al-Dhuhaibat et al 2020 ).…”

Section: Polymer Composites For Gamma-radiation Shieldingmentioning

confidence: 99%

“…Researchers have investigated various radiation shielding materials to protect life and its surroundings from debasing consequences that occurred from radiation exposure under attenuation or absorption of unwanted radiations (Singh et al 2014a, b;Al-Buriahi et al 2020;Levet et al 2020;More et al 2020a, b;Rani et al 2020). Weight, space, cost, and attenuation or absorption capabilities of the materials used for radiological protection are key points that defy researchers to synthesize and develop appropriate shielding materials.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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: 99%

Section: Introductionmentioning

confidence: 99%

Polymeric composite materials for radiation shielding: a review

et al. 2021

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“…Nuclear radiation protection mainly aims at shielding the neutron ray and γ-ray with extremely strong penetrating power. [13][14][15][16] Gadolinium (Gd) has the largest thermal neutron capture cross section, while lead (Pb) is commonly used to resist to photons (γ-and X-ray) through the photoelectric effect because of its larger atomic number. [17,18] To incorporate Gd and/or Pb into the plexiglass to fabricate transparent radiation protection materials is of significance, therefore.…”

Section: Introductionmentioning

confidence: 99%

Understanding the fracture toughness of gadolinium‐ and lead‐containing plexiglass

Zhang

Liu

et al. 2022

Polymer Engineering & Sci

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Toughened gadolinium‐ and lead‐containing plexiglasses (GLCPs) were prepared via copolymerization using ethoxylated bisphenol A dimethacrylate (BPAxEODMA, x = 2, 4, 10) as comonomer and network regulator. As‐obtained modified GLCPs possessed highly improved toughness, with satisfactory shielding and optical performances. The fracture mechanism was studied then in terms of fracture surface analyses. The results disclosed that both the impact strength and the fracture toughness (KIC) increased with the increase of fatty chain lengths or concentrations of BPAxEODMA, and the surface morphology strongly depended on the fracture processes. A morphological evolution, from mirror region to haze one, and finally to hackle region, was visible on all GLCP samples. However, the morphological characteristics of each region, such as size and roughness as well as the appearance of ring‐banded structure and firework‐like pattern, were completely different. The crack propagation mechanism was utilized to correlate the fracture surface morphology with fracture process of the samples. The relationship between KIC of the samples and their crosslinking networks was well‐built in this way. This work proposes valuable information around fabricating the anti‐radiation GLCPs with high and tailorable mechanical performance.

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“…15,16 Due to these outstanding properties, epoxy composites are widely used in aerospace, medical, aviation, and nuclear plant applications. [17][18][19] Bisphenol-A diglycidyl ether (DGEBA) is a high-performance thermosetting polymer resin widely used as an epoxy resin, showing great promise for many applications. [20][21][22] Bisphenol-A diglycidyl ether resin can be effectively cured with the amino-aromatic curing agent 4,4-diaminodiphenylmethene (DDM), which is widely used in the preparation of epoxy matrix and its composites at room temperature as well as at elevated temperatures.…”

Section: Introductionmentioning

confidence: 99%

Effect of gamma-rays on the thermal and mechanical properties of epoxy/tungsten boride composites

Hassan

Dayo

Zegaoui

et al. 2022

High Performance Polymers

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High performance polymer composites are essential materials in nuclear applications where many components can receive high ionizing rays doses such as gamma-rays. In this work, two composites named E51WB and E51WB2 based on epoxy (E51) and tungsten borides (WB and WB2) were manufactured at room temperature and then exposed to gammarays doses up to 2000 KGy. The goal of this study was to investigate and compare the impact of gamma-rays on the chemical structure, mechanical and thermal properties of E51WB and E51WB2 composites using FTIR, SEM, TGA and tensile tests. As the results, the char yield (Yc) for E51WB gradually increased from 40 to 46% at 0, 1000 and 1500 KGy, then slightly drop to 44% at 2000 KGy. The E51WB sample displayed the strain value of 2.3% at 0 KGy, and it increased to 4.7 and 5 % at 1000 and 1500 KGy, respectively, while at 2000 KGy it decreased to 3.5%. This may be due to phenomena such as hydrogen abstraction, disproportion, degradation or the formation of new bonds. The comparison of the TGA results of E51WB and E51WB2 at 1000 and 1500 KGy respectively, leads to the conclusion that E51WB2 is thermally more resistant. In addition, by comparing the tensile strength of these two samples at the same irradiation doses, it can be stated that the E51WB2 composite is stronger than its counterpart E51WB.

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Improved gamma radiation shielding traits of epoxy composites: Evaluation of mass attenuation coefficient, effective atomic and electron number

Cited by 76 publications

References 12 publications

Polymeric composite materials for radiation shielding: a review

Polymeric composite materials for radiation shielding: a review

Understanding the fracture toughness of gadolinium‐ and lead‐containing plexiglass

Effect of gamma-rays on the thermal and mechanical properties of epoxy/tungsten boride composites

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