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Correlated structural, optical, and radiation shielding characteristics of PVA/PVP/Cr2O3 nanocomposites.

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Title: Correlated structural, optical, and radiation shielding characteristics of PVA/PVP/Cr2O3 nanocomposites.
Authors: Alayed, B.1 (AUTHOR), Mahmoud, A. Z.1,2 (AUTHOR), Alziyadi, Mohammed O.3 (AUTHOR), Alkabsh, Asma4 (AUTHOR), Alruwaili, Amani5 (AUTHOR), Shalaby, Mustafa Saeed6 (AUTHOR) phy_m_shalaby@yahoo.com
Source: Journal of Thermoplastic Composite Materials. Jun2026, Vol. 39 Issue 6, p3331-3351. 21p.
Subjects: Radiation shielding, Polymeric nanocomposites, Structural analysis (Science), Chromium oxide, X-ray diffraction, Band gaps, Optical properties
Abstract: In this study, the structural, optical, and radiation shielding characteristics of a PVA/PVP blend loaded with varying ratios (0%, 1%, 2%, and 3 wt%) of Cr2O3 nanoparticles (NPs) are studied. This research is driven by the increasing demand for lightweight, flexible, and transparent shielding materials as alternatives to traditional, heavy, and hazardous substances such as lead. This study's novelty arises in establishing a thorough correlation between the microstructural modifications induced by Cr2O3 NPs and their subsequent optical and theoretically assessed radiation shielding features. The X-ray diffraction (XRD) analysis of the produced Cr2O3 NPs revealed a crystallite size of 42 nm. The optical band gap value of the PVA/PVP mix was 3.51 eV, which decreased to 1.97 eV with the incorporation of 3% wt. of Cr2O3 NPs. The PVA/PVP mix shows an Urbach energy value of 1.42 eV, which incrementally increases to 3.98 eV when the concentration of Cr2O3 NPs in the PVA/PVP blend escalates from 0 to 3% by weight. The impact of Cr2O3 NPs concentration on the radiation shielding characteristics of PVA/PVP/Cr2O3 nanocomposites has been theoretically assessed using the Phy-X tool and the XCOM database. The HVL value varied from 0.475 cm to 29.137 cm for PVA/PVP at 0.015 MeV and 15 MeV, respectively. At the same time, the HVL value ranged from 0.259 cm to 28.161 cm for the PVA/PVP/3%Cr2O3 nanocomposites at 0.015 MeV and 15 MeV, respectively. The exposure buildup factor (EBF) of PVA/PVP/Cr2O3 nanocomposites has been analyzed as a function of photon energy. Furthermore, the equivalent atomic number (Zeq) values for PVA/PVP/Cr2O3 nanocomposites have been studied. The optical features and radiation shielding performance of PVA/PVP/Cr2O3 nanocomposites make them suitable for radiation shielding applications. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Thermoplastic Composite Materials is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Correlated structural, optical, and radiation shielding characteristics of PVA/PVP/Cr<subscript>2</subscript>O<subscript>3</subscript> nanocomposites.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Thermoplastic+Composite+Materials%22">Journal of Thermoplastic Composite Materials</searchLink>. Jun2026, Vol. 39 Issue 6, p3331-3351. 21p.
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  Data: <searchLink fieldCode="DE" term="%22Radiation+shielding%22">Radiation shielding</searchLink><br /><searchLink fieldCode="DE" term="%22Polymeric+nanocomposites%22">Polymeric nanocomposites</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+analysis+%28Science%29%22">Structural analysis (Science)</searchLink><br /><searchLink fieldCode="DE" term="%22Chromium+oxide%22">Chromium oxide</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Band+gaps%22">Band gaps</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+properties%22">Optical properties</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this study, the structural, optical, and radiation shielding characteristics of a PVA/PVP blend loaded with varying ratios (0%, 1%, 2%, and 3 wt%) of Cr2O3 nanoparticles (NPs) are studied. This research is driven by the increasing demand for lightweight, flexible, and transparent shielding materials as alternatives to traditional, heavy, and hazardous substances such as lead. This study's novelty arises in establishing a thorough correlation between the microstructural modifications induced by Cr2O3 NPs and their subsequent optical and theoretically assessed radiation shielding features. The X-ray diffraction (XRD) analysis of the produced Cr2O3 NPs revealed a crystallite size of 42 nm. The optical band gap value of the PVA/PVP mix was 3.51 eV, which decreased to 1.97 eV with the incorporation of 3% wt. of Cr2O3 NPs. The PVA/PVP mix shows an Urbach energy value of 1.42 eV, which incrementally increases to 3.98 eV when the concentration of Cr2O3 NPs in the PVA/PVP blend escalates from 0 to 3% by weight. The impact of Cr2O3 NPs concentration on the radiation shielding characteristics of PVA/PVP/Cr2O3 nanocomposites has been theoretically assessed using the Phy-X tool and the XCOM database. The HVL value varied from 0.475 cm to 29.137 cm for PVA/PVP at 0.015 MeV and 15 MeV, respectively. At the same time, the HVL value ranged from 0.259 cm to 28.161 cm for the PVA/PVP/3%Cr2O3 nanocomposites at 0.015 MeV and 15 MeV, respectively. The exposure buildup factor (EBF) of PVA/PVP/Cr2O3 nanocomposites has been analyzed as a function of photon energy. Furthermore, the equivalent atomic number (Zeq) values for PVA/PVP/Cr2O3 nanocomposites have been studied. The optical features and radiation shielding performance of PVA/PVP/Cr2O3 nanocomposites make them suitable for radiation shielding applications. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Thermoplastic Composite Materials is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1177/08927057251406195
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 21
        StartPage: 3331
    Subjects:
      – SubjectFull: Radiation shielding
        Type: general
      – SubjectFull: Polymeric nanocomposites
        Type: general
      – SubjectFull: Structural analysis (Science)
        Type: general
      – SubjectFull: Chromium oxide
        Type: general
      – SubjectFull: X-ray diffraction
        Type: general
      – SubjectFull: Band gaps
        Type: general
      – SubjectFull: Optical properties
        Type: general
    Titles:
      – TitleFull: Correlated structural, optical, and radiation shielding characteristics of PVA/PVP/Cr2O3 nanocomposites.
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            NameFull: Alayed, B.
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            NameFull: Mahmoud, A. Z.
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            NameFull: Alziyadi, Mohammed O.
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            NameFull: Alkabsh, Asma
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            NameFull: Alruwaili, Amani
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            NameFull: Shalaby, Mustafa Saeed
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          Dates:
            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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            – TitleFull: Journal of Thermoplastic Composite Materials
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