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<p>With the advancement of society and technology, people are increasingly exposed to invisible sources of radiation in daily study, work, and life—such as mobile phones, televisions, computers, medical imaging equipment, and industrial radiographic instruments. There is now an urgent demand for environmentally friendly, lightweight, and flexible X-ray shielding materials. In this study, polypropylene (PP)–Bi₂O₃ and PP–WO₃ composite fibers were prepared by melt spinning, and, innovatively, Bi₂O₃, Gd₂O₃, and WO₃—three high-atomic-number fillers—were synergistically incorporated into the PP matrix in a single melt-spinning step to produce flexible fabrics. The materials were systematically characterized by X-ray shielding tests, scanning electron microscopy (SEM), single-fiber tensile testing, Fourier-transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA)&#xa0;and&#xa0;fabric breathability test. The results demonstrate that these fabrics achieve good X-ray shielding performance in the 15–40&#xa0;keV energy range. The materials combine low weight, high strength, and good thermal stability, can be produced at scale without complex post-processing, and show significant potential for application and market translation in medical diagnostic protection.</p>

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Preparation and X-ray Shielding Performance of Gd₂O₃/Bi₂O₃/WO₃ Modified Polypropylene Fiber Fabrics

  • 期刊论文

  • 发表日期：

    2025年11月14日

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  • Shujin Wu,
  • Hiba Moudden,
  • Yantao Gao

摘要

With the advancement of society and technology, people are increasingly exposed to invisible sources of radiation in daily study, work, and life—such as mobile phones, televisions, computers, medical imaging equipment, and industrial radiographic instruments. There is now an urgent demand for environmentally friendly, lightweight, and flexible X-ray shielding materials. In this study, polypropylene (PP)–Bi₂O₃ and PP–WO₃ composite fibers were prepared by melt spinning, and, innovatively, Bi₂O₃, Gd₂O₃, and WO₃—three high-atomic-number fillers—were synergistically incorporated into the PP matrix in a single melt-spinning step to produce flexible fabrics. The materials were systematically characterized by X-ray shielding tests, scanning electron microscopy (SEM), single-fiber tensile testing, Fourier-transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and fabric breathability test. The results demonstrate that these fabrics achieve good X-ray shielding performance in the 15–40 keV energy range. The materials combine low weight, high strength, and good thermal stability, can be produced at scale without complex post-processing, and show significant potential for application and market translation in medical diagnostic protection.