Gamma radiation shielding properties of poly(vinyl butyral)/Bi2O3@BaZrO3 nanocomposites

Maksoud, M. I. A. Abdel; Kassem, Said M.; Bekhit, Mohamad; Fahim, Ramy Amer; Ashour, Ahmed; Awed, A. S.

doi:10.1016/j.matchemphys.2021.124728

Cited by 41 publications

(15 citation statements)

References 57 publications

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“…In the case of silicone elastomers, the preparation of silicone rubber composites based on (polydimethylsiloxane), bismuth (III) oxide, and hexagonal boron nitride (hBN) with shielding properties against neutron, X, and gamma radiations was reported [83]. The shielding properties of poly (vinyl butyral) containing Bi 2 O 3 @BaZrO 3 also have been studied, and it was observed that they were significantly increased [84]. Moreover, ternary composites based on polyetherimide containing hexagonal boron nitride and gadolinium oxide (Gd 2 O 3 ) prepared by the melt-mixing process were reported.…”

Section: Composites As An Approach To Enhance the Performance Of Polymers Against He-emrmentioning

confidence: 99%

A Brief Review on the High-Energy Electromagnetic Radiation-Shielding Materials Based on Polymer Nanocomposites

Acevedo-Del-Castillo

Águila-Toledo

Maldonado-Magnere

et al. 2021

IJMS

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This paper revises the use of polymer nanocomposites to attenuate high-energy electromagnetic radiation (HE-EMR), such as gamma radiation. As known, high-energy radiation produces drastic damage not only in facilities or electronic devices but also to life and the environment. Among the different approaches to attenuate the HE-EMR, we consider the use of compounds with a high atomic number (Z), such as lead, but as known, lead is toxic. Therefore, different works have considered low-toxicity post-transitional metal-based compounds, such as bismuth. Additionally, nanosized particles have shown higher performance to attenuate HE-EMR than those that are micro-sized. On the other hand, materials with π-conjugated systems can also play a role in spreading the energy of electrons ejected as a consequence of the interaction of HE-EMR with matter, preventing the ionization and bond scission of polymers. The different effects produced by the interactions of the matter with HE-EMR are revised. The increase of the shielding properties of lightweight, flexible, and versatile materials such as polymer-based materials can be a contribution for developing technologies to obtain more efficient materials for preventing the damage produced for the HE-EMR in different industries where it is found.

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Section: Composites As An Approach To Enhance the Performance Of Polymers Against He-emrmentioning

confidence: 99%

A Brief Review on the High-Energy Electromagnetic Radiation-Shielding Materials Based on Polymer Nanocomposites

Acevedo-Del-Castillo

Águila-Toledo

Maldonado-Magnere

et al. 2021

IJMS

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“…The structures of the Er 3+ /Yb 3+ co-doped lead phosphate glasses were examined using X-ray diffraction (XRD; Shimadzu XRD-6000, Japan) [44][45][46][47][48][49][50][51][52][53]. FTIR absorption spectra of the Er 3+ /Yb 3+ co-doped lead phosphate glasses samples were measured via (Thermo Nicolet 380 spectrometer).…”

Section: Characterization Of Er/yb-doped Lead Phosphate Glass Samplesmentioning

confidence: 99%

Enhanced linear and nonlinear optical properties of erbium/ytterbium lead phosphate glass by gamma irradiation for optoelectronics applications

et al. 2022

Self Cite

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Herein, this study intends to reveal the impact of gamma irradiation on the structural, linear, and nonlinear optical characteristics of 47P2O5−23Na2O−6Al2O3−22PbO−0.5Er2O3−1.5Yb2O3 glass. The Er/Yb-doped lead phosphate glass samples were produced using the traditional melt quenching procedure and then treated to different doses of gamma irradiation (0, 20, 50, and 100) kGy. The amorphous phase structure of the Er/Yb-doped lead phosphate glass samples was verified through XRD patterns. Also, the shift of the FTIR peaks due to the change in bond angles, and the change in the bond length of the P–O–P bridges means the glass network stability against radiation. With increasing irradiation dosages, the energy gap dropped from 4.11 eV to 3.42 eV and then enhanced to 3.48 at 100 kGy. At the same time, the Urbach energy enhanced from 10.23 eV to 37.03 eV. The oscillator energy Eo was found between 1.55 and 1.62 eV. Also, the dispersion energy Ed varied between 2.11 eV at 100 kGy and 2.71 eV at the dose of 50 kGy. The percentage of free carrier ions to effective mass (N/m*) is in the range (4.82–8.66) × 1047 cm3/g. Besides, the lattice dielectric constant ($${\varepsilon }_{l}$$ ε l ) increased from 5.54 to 6.63 as the gamma dosages increased. Furthermore, increasing gamma doses up to 50 kGy promotes susceptibility, which subsequently declines at 100 kGy, suggesting that increasing gamma doses over 50 kGy weakens polarizability potential. While the increasing gamma doses up to 50 kGy reduces the nonlinear refractive index and then improves at 100 kGy. Overall, the nonlinear and linear research revealed that Er/Yb lead phosphate glass is being used as a promising material for gain media and optical amplifiers.

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“…The minimum values of HVL, TVL, and MFP were 0.367, 1.220, and 0.530 cm, respectively, corresponding to a ratio of 2.13. The smaller the HVL and TVL, the thinner the MAPbI 3 /epoxy composite samples with substantial ability to attenuate gamma rays 29,30 . For example, MAPbI 3 /epoxy composite samples with a thickness of 36.7 mm of can attenuate half of the gamma rays with an energy of 59.5 keV, whereas MAPbI 3 /epoxy composites with a thickness of 1.220 cm can attenuate as much as 90% of gamma rays.…”

Section: Gamma-ray Shielding Performance Of the Mapbi 3 / Epoxy Compo...mentioning

confidence: 99%

Crystal plane engineering of MAPbI<sub>3</sub> in epoxy-based materials for superior gamma-ray shielding performance

Cui¹,

Li²,

Wei³

et al. 2022

gxjzz

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The rapid development of the aerospace and nuclear industries is accompanied by increased exposure to highenergy ionising radiation. Thus, the performance of radiation shielding materials needs to be improved to extend the service life of detectors and ensure the safety of personnel. The development of novel lightweight materials with high electron density has therefore become urgent to alleviate radiation risks. In this work, new MAPbI 3 /epoxy (CH 3 NH 3 PbI 3 /epoxy) composites were prepared via a crystal plane engineering strategy. These composites delivered excellent radiation shielding performance against 59.5 keV gamma rays. A high linear attenuation coefficient (1.887 cm −1 ) and mass attenuation coefficient (1.352 cm 2 g −1 ) were achieved for a representative MAPbI 3 /epoxy composite, which was 10 times higher than that of the epoxy. Theoretical calculations indicate that the electron density of MAPbI 3 /epoxy composites significantly increases when the content ratio of the (110) plane in MAPbI 3 increases. As a result, the chances of collision between the incident gamma rays and electrons in the MAPbI 3 /epoxy composites were enhanced. The present work provides a novel strategy for designing and developing high-efficiency radiation shielding materials.

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Gamma radiation shielding properties of poly(vinyl butyral)/Bi2O3@BaZrO3 nanocomposites

Cited by 41 publications

References 57 publications

A Brief Review on the High-Energy Electromagnetic Radiation-Shielding Materials Based on Polymer Nanocomposites

A Brief Review on the High-Energy Electromagnetic Radiation-Shielding Materials Based on Polymer Nanocomposites

Enhanced linear and nonlinear optical properties of erbium/ytterbium lead phosphate glass by gamma irradiation for optoelectronics applications

Crystal plane engineering of MAPbI<sub>3</sub> in epoxy-based materials for superior gamma-ray shielding performance

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