High filler content acrylonitrile‐butadiene‐styrene composites containing tungsten and bismuth oxides for effective lead‐free x‐ray radiation shielding

Olivieri, Federico; Avolio, Roberto; Gentile, Gennaro; Mazzone, Annamaria; Rizzi, Rosanna; Nacucchi, Michele; Castaldo, Rachele; Errico, Maria Emanuela; Giannini, Cinzia; Ambrosio, Luigi; Lavorgna, Marino

doi:10.1002/pc.27906

Cited by 5 publications

(1 citation statement)

References 50 publications

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“…In recent years, radiation shielding materials based on composites with a matrix of resin, rubber, and a Pb-free metal oxide have been developed. [1][2][3][4][5][6] The inorganic fillers commonly used in these composites are barium sulfate (BaSO 4 ), tungsten(III) oxide (W 2 O 3 ), and bismuth(III) oxide (Bi 2 O 3 ) because of their high atomic number and high density. The radiation shielding properties and mechanical properties of composites with different particle sizes and filler contents, as well as different filler types, have been investigated.…”

Section: Introductionmentioning

confidence: 99%

Simple surface modification of barium sulfate for improving the interface of polymer composites and its x‐ray shielding properties

Tokonami,

Osanai,

Hosoda

et al. 2024

Polymer Composites

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Radiation shielding materials have been researched using Pb and metal oxide particles, and composites of resin and barium sulfate (BaSO4) have been reported. In addition, multiwalled carbon nanotubes (MWCNTs) have often been used as a nanomaterial to improve the mechanical strength of resin–BaSO4 composites. The literature includes no examples of these two materials—BaSO4 and MWCNTs—being used at the interface of composites. We effectively modified the surface of BaSO4 by a simple process involving strong electrostatic interaction between positively charged barium and negatively charged functional groups on the MWCNT surface. The process is simple and can form large amounts of MWCNTs that coat BaSO4 surfaces. As a result, MWCNTs remained on the BaSO4 surface even after the MWCNT‐coated BaSO4 was washed with a solvent and subjected to melt mixing. The physical anchoring of MWCNTs onto the BaSO4 surface improved the interfacial adhesion and mechanical properties of the resultant composites. The originality of this research is that MWCNTs can be coated onto the surface by only electrostatic interaction without using a polymer adhesive. In addition, the x‐ray shielding performance of the MWCNT‐containing composites was the same as that of composites prepared without the MWCNTs.Highlights MWCNTs were coated onto the surface of BaSO4 by electrostatic interaction. Interfacial adhesion of PS composites was improved by coating MWCNTs. The MWCNTs did not affect the x‐ray shielding performance.

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Section: Introductionmentioning

confidence: 99%

Simple surface modification of barium sulfate for improving the interface of polymer composites and its x‐ray shielding properties

Tokonami,

Osanai,

Hosoda

et al. 2024

Polymer Composites

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Acrylonitrile‐butadiene‐styrene‐based composites for the manufacture of anthropomorphic simulators

Thomazi,

Roman,

Vanni

et al. 2024

Polymer Composites

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The development of functional compounds for extrusion applied in the additive manufacturing of anthropomorphic simulators is interesting, as it guarantees the manufacture of a 3D model similar to the patient. These simulators find applications in therapies or laboratory tests involving x‐rays. In order to replicate human conditions in these tests, it is essential to create materials that closely match the properties of human tissue, including the smoothness of soft tissues and the hardness of the bone tissue. This study developed ceramic‐polymeric composites, where the tomography intensity of each mixture was measured experimentally. Combinations of acrylonitrile butadiene styrene (ABS) with zirconium oxide and basic bismuth carbonate allowed imitation of bone tissue. The samples containing zirconium oxide and basic bismuth carbonate presented results that exceeded the minimum limit and reached a value close to 2000 Hounsfield units (HU) with 12% basic bismuth carbonate content. Combinations of ABS with hydroxyapatite and aluminum oxide can imitate soft tissues. The use of a surfactant facilitated the mixing of ceramic filler with polymer. Finally, 3D printing of a physical model was performed using a dual extruder printer, allowing simultaneous printing of bone and soft tissue components.Highlights Material mimicking x‐ray attenuation similar to bone tissue. Relation between 3D printing porosity and intensity in Hounsfield unit. Computed tomography tests on a 3D printed anthropomorphic phantom. Creating a 3D model from a Computed Tomography scan. Double extruder for 3D printing of two tissue simultaneously.

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Amino-modified microporous hyper-crosslinked resins for heavy metal ions adsorption

Burevska-Atkovska,

Olivieri,

Avolio

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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High filler content acrylonitrile‐butadiene‐styrene composites containing tungsten and bismuth oxides for effective lead‐free x‐ray radiation shielding

Cited by 5 publications

References 50 publications

Simple surface modification of barium sulfate for improving the interface of polymer composites and its x‐ray shielding properties

Simple surface modification of barium sulfate for improving the interface of polymer composites and its x‐ray shielding properties

Acrylonitrile‐butadiene‐styrene‐based composites for the manufacture of anthropomorphic simulators

Amino-modified microporous hyper-crosslinked resins for heavy metal ions adsorption

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