高等学校化学学报 ›› 2026, Vol. 47 ›› Issue (3): 20250298.doi: 10.7503/cjcu20250298

• 研究论文: 无机化学 • 上一篇    下一篇

亚微米球Eu2O3/B4C/HDPE复合材料的制备及中子/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,合肥 230026
    2.中国科学院合肥物质科学研究院等离子体物理研究所,合肥 230031
  • 收稿日期:2025-10-15 出版日期:2026-03-10 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:
    国家自然科学基金(12575224);安徽省生态环境科研项目(2023hb0017);安徽省高校协同创新项目(GXXT-2022-001);中国聚变技术综合研究设施项目(2018-000052-73-01-001228);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(21KZL401);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(21KHH105);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(21KZS205);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(24JYZL01);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(24JYJB01)

Preparation and Neutron and Gamma Radiation Shielding Properties of Submicron Spheres Eu2O3/B4C/HDPE Composite

ZHANG Jie1,2, HUO Zhipeng2(), ZHONG Guoqiang2   

  1. 1.Science Island Branch,Graduate School of University of Science and Technology of China,Hefei 230026,China
    2.Institute of Plasma Physics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China
  • Received:2025-10-15 Online:2026-03-10 Published:2025-11-24
  • Contact: HUO Zhipeng E-mail:zhipeng.huo@ipp.ac.cn
  • Supported by:
    the National Natural Science Foundation of China(12575224);the Anhui Province Ecological Environment Research Project, China(2023hb0017);the University Synergy Innovation Program of Anhui Province, China(GXXT-2022-001);the Programs of Institute of Energy, Hefei Comprehensive National Science Center, China(21KZL401);the Comprehensive Research Facility for Fusion Technology Program of China(2018-000052 73-01-001228)

摘要:

采用均相沉淀法合成了亚微米球Eu2O3(Eu2O3-S)填料, 将其与不规则形貌的商用Eu2O3(Eu2O3-C)填料以及PbO填料增强复合材料进行了对比研究. XRD测试结果表明, 合成的Eu2O3-S属立方晶系, 体心立方格子, Ia3¯(206)空间群. SEM测试结果表明, 合成的Eu2O3-S填料为粒径均一的亚微米球, 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测试结果表明, 制备的Eu2O3-S/B4C/HDPE(HDPE=高密度聚乙烯)复合板材的屈服强度和抗拉强度分别为21.3 MPa与21.0 MPa, 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Eu2O3-S填料在HDPE基体中分散性最优, 能增强复合材料的屏蔽性能, 厚度为1.5 cm的板材具有最优的中子屏蔽率(43.66%), 其伽马射线屏蔽率为13.48%, 接近采用PbO填料的对比复合板材.

关键词: Eu2O3, 复合材料, 中子, 伽马射线, 辐射屏蔽

Abstract:

Submicron spherical Eu2O3(Eu2O3-S) filler was synthesized by homogeneous precipitation method, and a comparative study was conducted with commercial Eu2O3(Eu2O3-C) filler with irregular morphology and PbO filler reinforced composite materials. XRD tests show that the synthesized Eu2O3 filler(Eu2O3-S) is of cubic crystal system, body-centered cubic lattice, Ia3¯(206) space group. SEM tests show that the synthetic Eu2O3-S filler has submicron spherical morphologies with uniform particle size, while the commercial Eu2O3-C filler has 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(HDPE=high density polyetnylene) composite material are 21.3 MPa and 21.0 MPa, respectively, and the melting temperature is 119.7 ℃, all of which are higher than those of commercial Eu2O3-C/B4C/HDPE composite material. Neutron and gamma radiation shielding tests show that the Eu2O3-S filler with uniform particle size has the best dispersion in the HDPE matrix and can enhance the shielding rate of the composite material. The plate with a thickness of 1.5 cm 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, Gammaray, Radiation shielding

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