X-ray attenuation characterisation of electrospun Bi2O3/PVA and WO3/PVA nanofibre mats as potential X-ray shielding materials

Hazlan, Muhammad Hazritz; Jamil, Munirah; Azman, Nurul Zahirah Noor

doi:10.1007/s00339-018-1915-8

Cited by 41 publications

(23 citation statements)

References 24 publications

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“…This reducement was determined for single- ChemistrySelect layered PVC-10 coated PES spunbond. For increasing shelding efficiency, weight fraction of Bi 2 O 3 in nanofibers should be increased with higher thickness of coating [28,29,63] or number of coated PES layers.…”

Section: Lineer Absorption Coefficients and Shielding Performance Of ...mentioning

confidence: 99%

“…The type of filler used in polymer matrix has crucial effect on radiation shielding efficiency of electrospun surfaces. It was reported that Bi 2 O 3 doped mats had higher X‐ray attenuation ability than WO 3 doped samples in same polymer matrix and WO 3 concentration should be higher for reaching similar radiation shielding efficiency [28] . In another study, effect of filler size was examined and researchers claimed that adaption of nanofillers in polymer matrix effectively increased X‐ray radiation shielding performance of electrospun samples than those of microfillers [29] .…”

Section: Introductionmentioning

confidence: 99%

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X‐Ray Shielding Performance and Characterization of Electrospun PVC/Bismuth(III) Oxide Nanocomposites

Alma

Aygün

2022

ChemistrySelect

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To develop an alternative surface to lead‐based shieldings, we synthesized bismuth(III) oxide‐free and bismuth(III) oxide‐loaded poly(vinyl) chloride solutions via electrospinning process. Nanocomposite surfaces were characterized by scanning electron microscopy, differential scanning calorimetry, thermogravimetric analysis and fourier transform infrared spectroscopy. Thickness and electrical conductivity of different samples were measured and linear attenuation coefficients, half‐value length, tenth‐value length, mean‐free path and shielding performance were calculated with corresponding formula. The attenuation behaviors of samples were plotted by X‐COM software. According to results of instrumental analysis, micro‐particulated bismuth(III) oxide powder was adapted into nanofibrous structures and bismuth(III) oxide loading lead to development on thermal behaviors. Besides, bismuth(III) oxide‐loaded poly(vinyl) chloride samples showed limited electrical conductivity and improved X‐ray radiation attenuation. Increasing weight percentage of bismuth(III) oxide caused a decrease on half‐value length, tenth‐value length and mean‐free path values. It was concluded that studied samples should be used as multi‐layer form for achieving desired radiation dose reduction. By increasing w% of bismuth(III) oxide powder, more effective surfaces for radiation shielding can be manufactured.

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Section: Lineer Absorption Coefficients and Shielding Performance Of ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

X‐Ray Shielding Performance and Characterization of Electrospun PVC/Bismuth(III) Oxide Nanocomposites

Alma

Aygün

2022

ChemistrySelect

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“…The results showed that the radiation-attenuation capability of one layer of the fabric was 49.9% at a tube voltage of 80 kVp and gradually increased as the number of fabric layers increased. Electrospun Bi 2 O 3 nanoparticles/poly(vinyl alcohol) (PVA) nanofiber mats with different Bi 2 O 3 loadings (0–40 wt %) fabricated for the X-ray shielding purpose were also proposed by Hazlan et al 6 Their study showed that a 35 wt % Bi 2 O 3 /PVA nanofiber mat has the highest X-ray attenuation ability. The attenuation characteristics of PVC composites with micro- or nanoparticles of Bi 2 O 3 with respect to diagnostic X-rays (40–100 kVp) were revealed by Shik and Gholamzadeh.…”

Section: Introductionmentioning

confidence: 99%

“…As a result, polymer-based composites are particularly appealing as radiation-shielding materials. There are many types of polymers applied as matrices in non-lead radiation-shielding composites, including PVC, 3 , 4 , 7 urethane resin, 5 PVA, 6 silicone, 8 poly(ethylene terephthalate), 9 and epoxy resin. 2 However, most of them are not biodegradable systems.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Micro- and Nano-Bismuth(III) Oxide Coated Fabric for Environmentally Friendly X-Ray Shielding Materials

2022

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This research focuses on the development of environmentally friendly textile-based shielding composites, from micro-sized and nanosized Bi 2 O 3 particles, against ionizing radiation. Polyester fabric dyne-coated with either micro- or nano-Bi 2 O 3 particles shields some X-rays but the effectiveness is poor. With only ∼58% uptake of micro-sized Bi 2 O 3 particles dyeing on polyester fabric, the insufficient amount of Bi 2 O 3 leaded to the low density of particles, resulting in only 30% of X-ray shielding at 80 kVp. Cotton fabric coated with either micro- or nano-Bi 2 O 3 /poly(vinyl alcohol) (PVA) composites, on the other hand, demonstrated the capacity to attenuate X-ray generated by high diagnostic X-ray tube voltages of 70–100 kVp, in compliance with medical protection requirements. The X-ray attenuation performance of cotton fabric coated with either micro-Bi 2 O 3 /PVA or nano-Bi 2 O 3 /PVA nanocomposite decreased progressively with increasing tube acceleration voltages, however their ionizing radiation-shielding performance enhanced with the number of fabric layers. Interestingly, for all X-ray tube voltages evaluated, the micro-Bi 2 O 3 /PVA composite outperformed the nano- Bi 2 O 3 /PVA composite in terms of X-ray shielding. At a weight ratio of 66.7% Bi 2 O 3 , 10 layers of cotton fabric coated with micro- Bi 2 O 3 /PVA composite can attenuate 90, 85, and 80% of X-ray photons at 70, 80, and 100 kVp, respectively. As a result, these less harmful X-ray shielding materials have the potential to replace lead-based composites, which are highly toxic to human health and have negative environmental consequences.

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“…Consequently, due to these X-ray adverse effects, lead (Pb) and its compounds had been used as the preferred material for X-ray shielding because of its high efficiency in protecting humans. [24][25][26] Moreover, Pb has a high atomic number (Z: 83) and high density (8.90 g cm À3 ), which are the two main concerns when selecting the good X-ray shielding material. Pb is the most widely recognized shielding material used to secure against X-rays and g-rays.…”

Section: Introductionmentioning

confidence: 99%

Physical and mechanical properties of polyamide 6/polystyrene (PA6/PS) reinforced by PbO₂ composites for X-ray shielding

Elbary

Tammam

2019

Journal of Thermoplastic Composite Materials

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Thermal, electrical, as well as mechanical behavior of blends of polyamide 6/polystyrene (PA6/PS) (50/50 wt/wt%) loaded with different concentrations of lead dioxide (PbO2) were investigated for X-ray shielding. Thermal stability and hardness (shore D) of these composites are studied. Addition of PbO2 decreases the thermal stability of the prepared composites. Stability of thermal properties confirmed by determining the activation energy for the thermal decomposition of unfilled PA6/PS and filled composites according to the Horowitz and Metzger method. Dielectric properties of bulk PbO2 have been investigated as a function of frequency and temperature in the frequency range from 40 Hz to 5 × 106 Hz and in the temperature range from 293 K to 423 K. The characterization of the prepared composites is done using scanning electron microscope. With PbO2-loaded PA6/PS blends composites, the dielectric properties were significantly influenced by γ-irradiation effects that ε′ and [Formula: see text] values increase with radiation dose up to 100 kGy for samples loaded with PbO2. Linear attenuation coefficient μ and half-value layer (HVL) of all composites strongly depend on the concentration of the filler used and the applied voltage of X-ray machine. HVL of the obtained composites that loaded with 100 wt/wt% of PbO2 nearly 3 mm can be used as X-ray tube housing, equipment housings and castings, electronic devices protection, and so on.

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X-ray attenuation characterisation of electrospun Bi2O3/PVA and WO3/PVA nanofibre mats as potential X-ray shielding materials

Cited by 41 publications

References 24 publications

X‐Ray Shielding Performance and Characterization of Electrospun PVC/Bismuth(III) Oxide Nanocomposites

X‐Ray Shielding Performance and Characterization of Electrospun PVC/Bismuth(III) Oxide Nanocomposites

Evaluation of Micro- and Nano-Bismuth(III) Oxide Coated Fabric for Environmentally Friendly X-Ray Shielding Materials

Physical and mechanical properties of polyamide 6/polystyrene (PA6/PS) reinforced by PbO₂ composites for X-ray shielding

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X-ray attenuation characterisation of electrospun Bi2O3/PVA and WO3/PVA nanofibre mats as potential X-ray shielding materials

Cited by 41 publications

References 24 publications

X‐Ray Shielding Performance and Characterization of Electrospun PVC/Bismuth(III) Oxide Nanocomposites

X‐Ray Shielding Performance and Characterization of Electrospun PVC/Bismuth(III) Oxide Nanocomposites

Evaluation of Micro- and Nano-Bismuth(III) Oxide Coated Fabric for Environmentally Friendly X-Ray Shielding Materials

Physical and mechanical properties of polyamide 6/polystyrene (PA6/PS) reinforced by PbO2 composites for X-ray shielding

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Product

Resources

About

Physical and mechanical properties of polyamide 6/polystyrene (PA6/PS) reinforced by PbO₂ composites for X-ray shielding