Structural and shielding properties of P(VDF-HFP)-Bi2O3 multilayered polymer composites

IF 6.8 3区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Science: Advanced Materials and Devices Pub Date : 2025-08-27 DOI:10.1016/j.jsamd.2025.100990

Jureeporn Yuennan , Chaiyut Nateethorn , Phatthira Samakphong , Ratchaneewan Siri , Nikruesong Tohluebaji , Ghulam Abbas Ashraf , Aphinrat Khanklaeo , Phongpichit Channuie

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引用次数: 0

Abstract

Flexible, lead-free Bi₂O₃/poly(vinylidene fluoride-co-hexafluoropropylene) [P(VDF-HFP)] composite films were developed as sustainable X-ray shielding materials for medical and industrial applications. Films with Bi₂O₃ loadings of 5–50 wt% were fabricated via solution casting and characterized using SEM, AFM, XRD, FTIR, and TGA to assess surface morphology, crystallinity, thermal stability, and radiation attenuation. Mechanical testing and X-ray attenuation measurements at 60 and 80 kVp revealed a clear trade-off between shielding efficiency and mechanical flexibility. Among all compositions, 20 wt% Bi₂O₃offered the most balanced performance, with a tensile strength of 10.7 ± 0.1 MPa, elongation at break of 4.7 ± 0.9 %, crystallinity of 81.99 %, hydrophobicity (water contact angle) of 120.46 ± 0.64°, 88.0 ± 0.1 % attenuation at 60 kVp (four-sheet configuration), and an enhanced maximum degradation temperature (T_max) of 480.13 °C. Higher filler loadings improved attenuation up to 92.0 ± 0.2 % but substantially reduced flexibility, while lower loadings preserved mechanical properties but compromised shielding. These results demonstrate that optimized Bi₂O₃/P(VDF-HFP) composites can deliver lightweight, flexible, and environmentally friendly alternatives to lead-based shielding, with tunable performance for specific application needs.

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P(VDF-HFP)-Bi2O3多层聚合物复合材料的结构和屏蔽性能

柔性，无铅的Bi2O3/聚偏氟乙烯-共六氟丙烯[P(VDF-HFP)]复合薄膜被开发为可持续的x射线屏蔽材料，用于医疗和工业应用。通过溶液浇铸法制备了Bi2O3含量为5-50 wt%的薄膜，并使用SEM、AFM、XRD、FTIR和TGA对其表面形貌、结晶度、热稳定性和辐射衰减进行了表征。机械测试和60和80 kVp的x射线衰减测量表明，屏蔽效率和机械灵活性之间存在明显的权衡。在所有成分中，20 wt% bi2o3具有最平衡的性能，抗拉强度为10.7±0.1 MPa，断裂伸长率为4.7±0.9%，结晶度为81.99%，疏水性（水接触角）为120.46±0.64°，60 kVp（四层结构）衰减88.0±0.1%，最大降解温度（Tmax）提高到480.13°C。较高的填料载荷可改善衰减达92.0±0.2%，但大大降低了柔韧性，而较低的载荷保留了机械性能，但损害了屏蔽性。这些结果表明，优化后的Bi2O3/P（VDF-HFP）复合材料可以提供轻质、灵活、环保的铅基屏蔽替代品，并具有可调的性能，以满足特定的应用需求。

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来源期刊

Journal of Science: Advanced Materials and Devices Materials Science-Electronic, Optical and Magnetic Materials

CiteScore

11.90

自引率

2.50%

发文量

审稿时长

47 days

期刊介绍： In 1985, the Journal of Science was founded as a platform for publishing national and international research papers across various disciplines, including natural sciences, technology, social sciences, and humanities. Over the years, the journal has experienced remarkable growth in terms of quality, size, and scope. Today, it encompasses a diverse range of publications dedicated to academic research. Considering the rapid expansion of materials science, we are pleased to introduce the Journal of Science: Advanced Materials and Devices. This new addition to our journal series offers researchers an exciting opportunity to publish their work on all aspects of materials science and technology within the esteemed Journal of Science. With this development, we aim to revolutionize the way research in materials science is expressed and organized, further strengthening our commitment to promoting outstanding research across various scientific and technological fields.