Trends in reinforced composite design for ionizing radiation shielding applications: a review

Okafor, Christian Emeka; Okonkwo, Ugochukwu C.; Okokpujie, Imhade P.

doi:10.1007/s10853-021-06037-3

Cited by 50 publications

(11 citation statements)

References 114 publications

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“…MoS 2 @PNC have exhibited increased toughness, enhanced tribological attributes, improved thermal stability, and enhanced flame repression. On the other hand, a versatile range of PNC has been fabricated for multifunctional applications 64‐135 . With the advancement in nanotechnology, it is anticipated that innovations generable in the next generation of MoS 2 @PNC are blue chip.…”

Section: Discussionmentioning

confidence: 99%

Molybdenum disulfide polymeric nanoarchitectures and applications: A review

Idumah

2023

Polymer Engineering & Sci

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The advent of nanotechnology has escalated the quest for novel 2‐D nanomaterials (NMs) with the capability of surpassing all known advantages of graphene (GN), and more, resulting in the recent discovery of molybdenum disulfide (MoS2). MoS2 is a 2‐D sheet‐like NM, possessing unique layered “sandwich” architecture, in addition to chemical, electronic, and optical features similar to those of GN, thereby expanding their scope of applications for transistors, solar cells, catalysts, sensors, and so on. The embedment of MoS2 inside polymeric substrates (PP, PEG, epoxy, and so on), have resulted in the construction of MoS2 polymer nanoarchitectures exhibiting superior mechanical, thermal, and flame retardant features with multifunctional and versatile applications. Hence, this elucidation discusses recently emerging research activities in MoS2 polymeric nanoarchitectures and multifaceted applications.

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Section: Discussionmentioning

confidence: 99%

Molybdenum disulfide polymeric nanoarchitectures and applications: A review

Idumah

2023

Polymer Engineering & Sci

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“…We specifically explore the integration of LDPE in various formulations, leveraging its known attributes of flexibility, durability, and ease of processing. Studies have shown the development of lead-free polymers which demonstrate improved photon attenuation radiation shielding across various industries compared to traditional lead-based shields which pose toxicity and handling challenges [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Novel Polymer Composites for Lead-Free Shielding Applications

Baamer,

Alshahri,

Basfar

et al. 2024

Polymers

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Polymer nanocomposites have recently been introduced as lead-free shielding materials for use in medical and industrial applications. In this work, novel shielding materials were developed using low-density polyethylene (LDPE) mixed with four different filler materials. These four materials are cement, cement with iron oxide, cement with aluminum oxide, and cement with bismuth oxide. Different weight percentages were used including 5%, 15%, and 50% of the cement filler with LDPE. Furthermore, different weight percentages of different combinations of the filler materials were used including 2.5%, 7.5%, and 25% (i.e., cement and iron oxide, cement and aluminum oxide, cement and bismuth oxide) with LDPE. Bismuth oxide was a nanocomposite, and the remaining oxides were micro-composites. Characterization included structural properties, physical features, mechanical and thermal properties, and radiation shielding efficiency for the prepared composites. The results show that a clear improvement in the shielding efficiency was observed when the filler materials were added to the LDPE. The best result out of all these composites was obtained for the composites of bismuth oxide (25 wt.%) cement (25 wt.%) and LDPE (50 wt.%) which have the lowest measured mean free path (MFP) compared with pure LDPE. The comparison shows that the average MFP obtained from the experiments for all the eight energies used in this work was six times lower than the one for pure LDPE, reaching up to twelve times lower for 60 keV energy. The best result among all developed composites was observed for the ones with bismuth oxide at the highest weight percent 25%, which can block up to 78% of an X-ray.

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“…Due to the known toxic effects of lead and some problems arising from its weight, the search for new radiation shielding materials as an alternative to lead has gained momentum. Glasses [1][2][3], alloys [4][5][6], concretes [7][8][9], composites [10][11][12] and minerals [13,14] are included in the search new alternative products to lead. In addition to these, the choice of metallic glasses is a new alternative for use in this field, as their elements are adjustable up to a certain point.…”

Section: Introductionmentioning

confidence: 99%

Determination of Gamma Radiation Shielding Characteristics for Some Iron-Based Metallic Glasses

Akman

2023

Türk Doğa Ve Fen Dergisi

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In this study, the gamma radiation shielding characteristics of metallic glasses having Fe81B13.5Si3.5C2, Fe79B16Si5, Fe78B13Si9 and Fe40Ni38B18Mo4 components and coded as FeBSiC, FeBSi1, FeBSi2 and FeNiBMo were investigated. In order to investigate, the mass attenuation coefficients for metallic glasses in the photon energies range of 0.060 to 2.614 MeV were calculated with the help of WinXCOM program and GEANT4 and FLUKA simulation codes. The linear attenuation coefficient, half and tenth value layers, mean free path, effective atomic number and electron density parameters were calculated with the help of the calculated mass attenuation coefficients. Variations of the calculated gamma radiation shielding parameters with photon energy were discussed. It was observed that mass and linear attenuation coefficients, effective atomic number and electron density parameters decreased with increasing photon energy, while half and tenth value layers and mean free path parameters increased with increasing photon energy. It has been observed that metallic glasses have better gamma shielding capabilities in the low photon energy region, and metallic glass coded as FeNiBMo has better gamma radiation shielding capacity than other studied metallic glasses.

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Trends in reinforced composite design for ionizing radiation shielding applications: a review

Cited by 50 publications

References 114 publications

Molybdenum disulfide polymeric nanoarchitectures and applications: A review

Molybdenum disulfide polymeric nanoarchitectures and applications: A review

Novel Polymer Composites for Lead-Free Shielding Applications

Determination of Gamma Radiation Shielding Characteristics for Some Iron-Based Metallic Glasses

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