Research on X-ray shielding performance of wearable Bi/Ce-natural leather composite materials

Li, Qian; Wang, Yaping; Xiao, Xiao; Zhong, Rui; Liao, Jiali; Guo, Junling; Liao, Xuepin; Shi, Bi

doi:10.1016/j.jhazmat.2020.122943

Cited by 46 publications

(30 citation statements)

References 31 publications

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“…Blue fluorescence in Figure C clearly demonstrated that the homogenous dispersal of La on the collagen fiber may benefit the X-ray radiation shielding. Consistent with the result of a previous investigation, Bi 2 O 3 NPs are properly dispersed in the NL matrix . The single-fiber TEM images shown in Figure D,E indicate that the coimpregnated Bi x La y –NL composite is properly prepared via the method described in our previous work …”

Section: Resultssupporting

confidence: 90%

“…Some studies on natural leather-based X-ray shielding materials have realized satisfactory performance at 20–120 keV by impregnating bismuth as the functional element. , However, the shielding performance in 40–83 keV still needs improvement because of the weak absorption region of bismuth in this X-ray energy range . The K absorbance edge of lanthanum is 38.9 keV, which exhibits optimal X-ray attenuation at around 38.9 keV .…”

Section: Introductionmentioning

confidence: 99%

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Lightweight and Flexible Bi@Bi-La Natural Leather Composites with Superb X-ray Radiation Shielding Performance and Low Secondary Radiation

Zhong

Xiao

et al. 2020

ACS Appl. Mater. Interfaces

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A high-shielding, low secondary radiation, lightweight, flexible, and wearable X-ray protection material was prepared by coimpregnating La 2 O 3 and Bi 2 O 3 nanoparticles in natural leather (NL) with an additional Bi 2 O 3 coating at the bottom surface of the leather. The prepared Bi 28.2 @Bi 3.48 La 3.48 −NL (28.2 and 3.48 mmol•cm −3 are the loading contents of elements) showed excellent X-ray shielding ability (65−100%) in a wide energy range of 20−120 keV with reduced scattered secondary radiation (30%). The bottom surface coating played a critical role in enhancing the X-ray attenuation and reducing the scattered secondary radiation by reflecting and deflecting incident X-ray photons. Excellent mechanical property with superb bending resistance of the NL matrix was properly maintained, and its tensile strength and tearing load were 15.39 MPa and 25.81 N•mm −1 , respectively. This lightweight and wearable high-performance protection material can facilitate safety and comfortability during intensive activities of practitioners in the health care industry.

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Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Lightweight and Flexible Bi@Bi-La Natural Leather Composites with Superb X-ray Radiation Shielding Performance and Low Secondary Radiation

Zhong

Xiao

et al. 2020

ACS Appl. Mater. Interfaces

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“…Polypropylene composites are reinforced by metal oxides such as Pbo which is the most used filler in polymeric matrix to shield gamma rays due to its high density and high atomic number compared to other metal oxides [ 17 , 18 ]. In this work, polymer composites of high density polypropylene were prepared via filling with power bulk lead and nano lead oxide nanoparticles with different filler weight percentages.…”

Section: Introductionmentioning

confidence: 99%

Improving Gamma Ray Shielding Behaviors of Polypropylene Using PbO Nanoparticles: An Experimental Study

et al. 2022

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Recently, polymers have entered into many medical and industrial applications. This work aimed to intensively study polypropylene samples (PP) embedded with micro and nanoparticles of PbO for their application in radiation shielding. Samples were prepared by adding 10%, 30%, and 50% by weight of PbO microparticles (mPbO) and adding 10% and 50% PbO nanoparticles (nPbO), in addition to the control sample (pure polypropylene). The morphology of the prepared samples was tested; on the other hand, the shielding efficiency of gamma rays was tested for different sources with different energies. The experimental linear attenuation coefficient (LAC) was determined using a NaI scintillation detector, the experimental results were compared with NIST-XCOM results, and a good agreement was noticed. The LAC was 0.8005 cm−1 for PP-10%nPbO and 0.6283 cm−1 for PP-10%mPbO while was 5.8793 cm−1 for PP-50%nPbO and 3.9268 cm−1 for PP-50%mPbO at 0.060 MeV. The LAC values have been converted to some specific values, such as half value layer (HVL), mean free path (MFP), tenth value layer (TVL), and radiation protection efficiency (RPE) which are useful for discussing the shielding capabilities for gamma-rays. The results of shielding parameters reveal that the PP embedded with nPbO gives better attenuation than its counterpart pp embedded with mPbO at all studied energies.

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“…Researchers have developed and improved the properties of many materials for use in radiation shielding. Polymer composites are reinforced by metal oxides such as bismuth dioxide, which is the most used filler in polymeric matrices to shield gamma rays due to its high density and high atomic number compared to other metal oxides [ 18 , 19 , 20 , 21 , 22 ]. The role of polymer is to acquire plasticity, have an easy formability, and to provide load–stress transfer.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Polypropylene with Additives of Bi2O3 Nanoparticles as Radiation-Shielding Materials

et al. 2022

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This work aimed to intensively study polypropylene samples (PP) embedded with micro- and nanoparticles of Bi2O3 for their application in radiation shielding. Samples were prepared by adding 10%, 20%, 30%, 40%, and 50% of Bi2O3 microparticles (mBi2O3) by weight, and adding 10% and 50% of Bi2O3 nanoparticles (nBi2O3), in addition to the control sample (pure polypropylene). The morphology of the prepared samples was tested, and also, the shielding efficiency of gamma rays was tested for different sources with different energies. The experimental LAC were determined using a NaI scintillation detector, the experimental results were compared with NIST-XCOM results, and a good agreement was noticed. The LAC values have been used to calculate some specific parameters, such as half value layer (HVL), mean free path (MFP), tenth value layer (TVL), and radiation protection efficiency (RPE), which are useful for discussing the shielding capabilities of gamma rays. The results of the shielding parameters show that the PP embedded with nBi2O3 gives better attenuation than its counterpart, PP embedded with mBi2O3, at all studied energies.

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Research on X-ray shielding performance of wearable Bi/Ce-natural leather composite materials

Cited by 46 publications

References 31 publications

Lightweight and Flexible Bi@Bi-La Natural Leather Composites with Superb X-ray Radiation Shielding Performance and Low Secondary Radiation

Lightweight and Flexible Bi@Bi-La Natural Leather Composites with Superb X-ray Radiation Shielding Performance and Low Secondary Radiation

Improving Gamma Ray Shielding Behaviors of Polypropylene Using PbO Nanoparticles: An Experimental Study

Experimental Study of Polypropylene with Additives of Bi2O3 Nanoparticles as Radiation-Shielding Materials

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