Characteristics of X-ray attenuation in nano-sized bismuth oxide/epoxy-polyvinyl alcohol (PVA) matrix composites

Abunahel, Bassam M.; Mustafa, Iskandar Shahrim; Azman, Nurul Zahirah Noor

doi:10.1007/s00339-018-2254-5

Cited by 29 publications

(14 citation statements)

References 25 publications

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“…FRCMs (e.g., those with an epoxy resin matrix) have a high specific strength, a large specific modulus, plasticity, good corrosion resistance, X-ray shielding, and durability. [29][30][31][32][33] FRCMs are playing an increasingly important role in aerospace applications, high-speed railways, ship manufacturing, marine engineering and the associated shielding and protection. 34,35 Basalt fiber is a new type of inorganic reinforcing fiber that is being promoted by the Chinese government.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the fiber‐reinforced composite BEP is the BEP type most similar to the organism in terms of its structure and composition. FRCMs (e.g., those with an epoxy resin matrix) have a high specific strength, a large specific modulus, plasticity, good corrosion resistance, X‐ray shielding, and durability 29–33 . FRCMs are playing an increasingly important role in aerospace applications, high‐speed railways, ship manufacturing, marine engineering and the associated shielding and protection 34,35 .…”

Section: Introductionmentioning

confidence: 99%

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The compressive property of a fiber‐reinforced resin beetle elytron plate and its influence mechanism

Chen

Pan

et al. 2021

J of Applied Polymer Sci

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To develop composite material beetle elytron plates (BEPs), short basalt fiberreinforced epoxy resin BEPs with hollow trabeculae and honeycomb walls were fabricated exploratively. Through comparison with honeycomb plates (HPs) with the same wall thickness, the basic mechanical performance, failure mode and influence mechanism were studied via out-of-plane compression tests. The results show that compared with HPs, the specific strength and energy consumption per volume of BEPs can be at least 18% and 112% higher, respectively; however, the increase is less than half that of BEPs made of ductile materials. The former is due to the synergistic mechanism of the trabecular-honeycomb structure in the BEP core layer, which endows the composite BEPs with better ductility than HPs, while the latter is caused by the prominent brittleness of the composite material used in this study. Additionally, the height-to-thickness ratio of the plate honeycomb wall in this article is not large enough. Thus, the core has great rigidity and fails to buckle in experiments; instead, shear failure of the core material occurs. This study reveals for the first time the mechanical compression properties and failure mechanism of brittle material BEPs and shows a direction for developing BEPs in similar material types.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The compressive property of a fiber‐reinforced resin beetle elytron plate and its influence mechanism

Chen

Pan

et al. 2021

J of Applied Polymer Sci

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“…Hence, to overcome this difficulty, the use of composites with high radiopaque fillers is being investigated. Barium sulfate (BaSO 4 ) [ 13 , 14 , 15 ], ferrous oxide (Fe 3 O 4 ) [ 16 ] and bismuth oxide (Bi 2 O 3 ) [ 17 , 18 ] have been previously reported as radiopaque composite fillers, and BaSO 4 is currently the most commonly used in medical applications. Barium sulfate (BaSO 4 ) is a standard in medical applications, approved by the FDA and used for X-ray assisted implantation to control the position of polymer implants and drug delivery systems during biodegradation [ 9 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Crystallization Behavior and Mechanical Properties of Poly(ε-caprolactone) Reinforced with Barium Sulfate Submicron Particles

et al. 2021

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Poly(ε-caprolactone) (PCL) was mixed with submicron particles of barium sulfate to obtain biodegradable radiopaque composites. X-ray images comparing with aluminum samples show that 15 wt.% barium sulfate (BaSO4) is sufficient to present radiopacity. Thermal studies by differential scanning calorimetry (DSC) show a statistically significant increase in PCL degree of crystallinity from 46% to 52% for 25 wt.% BaSO4. Non-isothermal crystallization tests were performed at different cooling rates to evaluate crystallization kinetics. The nucleation effect of BaSO4 was found to change the morphology and quantity of the primary crystals of PCL, which was also corroborated by the use of a polarized light optical microscope (PLOM). These results fit well with Avrami–Ozawa–Jeziorny model and show a secondary crystallization that contributes to an increase in crystal fraction with internal structure reorganization. The addition of barium sulfate particles in composite formulations with PCL improves stiffness but not strength for all compositions due to possible cavitation effects induced by debonding of reinforcement interphase.

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“…7 Polymer nanocomposites are shown to be promising candidates for diagnostic X-ray attenuation. 4,5,[8][9][10][11][12][13][14][15][16][17][18] For example, Ozdemir et al, have reported the development of 3-layered polydimethylsiloxane rubber composite containing hexagonal boron nitride, boron (III) oxide, bismuth (III) oxide in each layer for the shielding of mixed radiation. 17 Yilmaz et al, have discussed the mechanical, thermal and rheological properties of polydimethylsiloxane/bismuth (III) oxide composite for X/Gamma ray shielding.…”

Section: Introductionmentioning

confidence: 99%

Multifiller nanocomposites containing gadolinium oxide and bismuth nanoparticles with enhanced X‐ray attenuation property

Jayakumar

Mani

Saravanan

et al. 2021

J of Applied Polymer Sci

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We report here the development of multifiller nanocomposite containing gadolinium oxide and bismuth nanofillers with enhanced X-ray attenuation property. The mass attenuation coefficient of the nanocomposite is found to be 5.26 (X-ray attenuation: 95%) and 2.22 cm 2 /g (X-ray attenuation: 71%), respectively, under dental and lung X-ray scan conditions. Fourier transform infrared spectroscopy confirms the interfacial interaction between Gd 2 O 3 nanofillers and the polymer matrix through hydrogen bonding. Atomic force microscopy images of the nanocomposite show a smooth and uniform topography with an average surface roughness of~19 nm. Thermogravimetric analysis confirms the thermal stability of the nanocomposite upto 384 C. The enhanced X-ray attenuation property of the nanocomposite is attributed to the good interfacial bonding, dual k-edge effect of nanofillers and their uniform distribution within the polymeric matrix. Therefore, this nanocomposite is a promising material for diagnostic X-ray shielding, especially as, thyroid collar, gonad shield, aprons, gloves, and so on.

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Characteristics of X-ray attenuation in nano-sized bismuth oxide/epoxy-polyvinyl alcohol (PVA) matrix composites

Cited by 29 publications

References 25 publications

The compressive property of a fiber‐reinforced resin beetle elytron plate and its influence mechanism

The compressive property of a fiber‐reinforced resin beetle elytron plate and its influence mechanism

Crystallization Behavior and Mechanical Properties of Poly(ε-caprolactone) Reinforced with Barium Sulfate Submicron Particles

Multifiller nanocomposites containing gadolinium oxide and bismuth nanoparticles with enhanced X‐ray attenuation property

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