高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

亚微米球Eu2O3/B4C/HDPE复合材料及中子伽马辐射屏蔽性能

张捷1,2，霍志鹏2，钟国强2   

  1. 1. 中国科学技术大学研究生院科学岛分院 2. 中国科学院合肥物质科学研究院等离子体物理研究所

  • 收稿日期:2025-10-15 修回日期:2025-11-18 网络首发:2025-11-24 发布日期:2025-11-24
  • 通讯作者: 霍志鹏 E-mail:zhipeng.huo@ipp.ac.cn
  • 基金资助:
    安徽省生态环境科研项目(批准号: 2023hb0017)、 安徽省高校协同创新项目(批准号: GXXT-2022-001)、 聚变堆主机关键系统综合研究设施项目(批准号: 2018-000052-73-01-001228)和合肥综合性国家科学中心能源研究院(安徽省能源实验室)项目(批准号: 21KZL401, 21KHH105, 21KZS205, 24JYZL01, 24JYJB01)资助

Submicron spheres Eu2O3/B4C/HDPE composites and properties of neutron and gamma radiation shielding

ZHANG Jie1,2, HUO Zhipeng2, ZHONG Guoqiang2   

  1. 1. Science Island Branch, Graduate School of University of Science and Technology of China 2. Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences

  • Received:2025-10-15 Revised:2025-11-18 Online First:2025-11-24 Published:2025-11-24
  • Supported by:
    Supported by the Anhui Province Ecological Environment Research Project, China(No.2023hb0017), the University Synergy Innovation Program of Anhui Province, China(No.GXXT-2022-001), the Comprehensive Research Facility for Fusion Technology Program of China(No.2018-000052 73-01-001228) and the Programs of Institute of Energy, Hefei Comprehensive National Science Center, China(Nos.21KZL401, 21KHH105, 21KZS205, 24JYZL01, 24JYJB01)

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摘要： 采用均相沉淀法合成了Eu2O3填料(Eu2O3-S)，并且与不规则形貌的商用Eu2O3(Eu2O3-C)填料以及PbO填料增强复合材料做了对比研究. XRD测试表明，合成的Eu2O3填料(Eu2O3-S)为立方晶系，体心立方格子，Ia3 ?(206)空间群. SEM测试表明，合成Eu2O3-S填料为粒径均一的亚微米球形貌，而商用Eu2O3-C填料为不规则形貌的微米颗粒. 力学拉伸测试与DSC测试表明，合成Eu2O3-S/B4C/HDPE复合板材的屈服强度和抗拉强度分别为21.3MPa与21.0MPa，熔融温度为119.7℃，均强于商用Eu2O3-C/B4C/HDPE板材. 中子和伽马辐射屏蔽测试结果表明，粒径均一的亚微米球Eu2O3-S填料在HDPE基体中分散性最优，能增强复合材料的屏蔽率，厚度为1.5cm的板材具有最优的中子屏蔽率(43.66%)，其伽马屏蔽率为13.48%，接近PbO填料的对比复合板材.

关键词: Eu2O3, 复合材料, 中子, 伽马, 辐射屏蔽

Abstract: Eu2O3 fillers (Eu2O3-S) is synthesized by homogeneous precipitation method, and a comparative study is conducted with commercial Eu2O3(Eu2O3-C) fillers with irregular morphology and PbO fillers reinforced composite materials. XRD tests show that the synthesized Eu2O3 fillers (Eu2O3-S) are of cubic crystal system, body-centered cubic lattice, Ia3 ?(206) space group. SEM tests show that the synthetic Eu2O3-S fillers have submicron spherical morphologies with uniform particle size, while the commercial Eu2O3-C fillers have micron particles with irregular morphologies. Mechanical tensile tests and DSC tests show that the yield stress and tensile stress of the synthetic Eu2O3-S /B4C/HDPE composite material are 21.3MPa and 21.0MPa respectively, and the melting temperature is 119.7℃, all of which are stronger than those of commercial Eu2O3-C/B4C/HDPE composite material. Neutron and gamma radiation shielding tests show that the submicron sphere Eu2O3-S fillers with uniform particle size have the best dispersion in the HDPE matrix and can enhance the shielding rate of the composite material. The plate with a thickness of 1.5cm has the best neutron shielding rate (43.66%), and its gamma shielding rate is 13.48%, which is close to the comparison composite material with Pb fillers.

Key words: Eu2O3; Composite, Neutron; Gamma, Radiation shielding

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