高等学校化学学报 ›› 2026, Vol. 47 ›› Issue (3): 20250298.doi: 10.7503/cjcu20250298
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:
ZHANG Jie1,2, HUO Zhipeng2(
), ZHONG Guoqiang2
Received:2025-10-15
Online:2026-03-10
Published:2025-11-24
Contact:
HUO Zhipeng
E-mail:zhipeng.huo@ipp.ac.cn
Supported by: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, Ia
中图分类号:
TrendMD:
张捷, 霍志鹏, 钟国强. 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. 高等学校化学学报, 2026, 47(3): 20250298.
ZHANG Jie, HUO Zhipeng, ZHONG Guoqiang. Preparation and Neutron and Gamma Radiation Shielding Properties of Submicron Spheres Eu2O3/B4C/HDPE Composite. Chem. J. Chinese Universities, 2026, 47(3): 20250298.
Fig.3 Stress⁃strain curves of different composite samples(A) and yield strength relative ratio of different composites before and after UV accelerated ageing at 60 ℃ for 15 d(B) a. HDPE; b. B4C/HDPE; c. Eu2O3⁃S/B4C/HDPE; d. Eu2O3⁃C/B4C/HDPE; e. PbO/HDPE.
| Sample | Yield stress, σy /MPa | Tensile stress, σt /MPa | Young’s modulus/MPa | Elongation at break(%) |
|---|---|---|---|---|
| HDPE | 16.5 | 16.7 | 639.2 | 134.3 |
| B4C/HDPE | 23.9 | 23.4 | 1149.3 | 23.5 |
| Eu2O3⁃S(20%)/B4C/HDPE | 21.3 | 21.0 | 1060.9 | 12.6 |
| Eu2O3⁃C/B4C/HDPE | 20.4 | 20.3 | 1005.5 | 14.5 |
| PbO/HDPE | 18.9 | 17.6 | 809.3 | 46.1 |
| Eu2O3⁃S(30%)/HDPE | 19.6 | 19.6 | 1170.7 | 5.1 |
Table 1 Tensile parameters of composite samples
| Sample | Yield stress, σy /MPa | Tensile stress, σt /MPa | Young’s modulus/MPa | Elongation at break(%) |
|---|---|---|---|---|
| HDPE | 16.5 | 16.7 | 639.2 | 134.3 |
| B4C/HDPE | 23.9 | 23.4 | 1149.3 | 23.5 |
| Eu2O3⁃S(20%)/B4C/HDPE | 21.3 | 21.0 | 1060.9 | 12.6 |
| Eu2O3⁃C/B4C/HDPE | 20.4 | 20.3 | 1005.5 | 14.5 |
| PbO/HDPE | 18.9 | 17.6 | 809.3 | 46.1 |
| Eu2O3⁃S(30%)/HDPE | 19.6 | 19.6 | 1170.7 | 5.1 |
Fig.5 Total neutron cross⁃sections of different elements(A) and curves of the mass attenuation coefficients(B) of different fillers varying with energy
| Sample | Sn(%) | Sγ(%) | ρ/(g·cm-3) | Σ/cm-1 | μ/cm-1 | μm/(cm2·g-1) | HVL/cm |
|---|---|---|---|---|---|---|---|
| HDPE | 37.82% | 9.01% | 0.931 | 0.317 | 0.063 | 0.068 | 11.0 |
| B4C/HDPE | 38.39% | 11.83% | 1.113 | 0.323 | 0.084 | 0.075 | 8.25 |
| Eu2O3⁃S/B4C/HDPE | 43.66% | 13.48% | 1.224 | 0.383 | 0.097 | 0.079 | 7.15 |
| Eu2O3⁃C/B4C/HDPE | 39.55% | 12.47% | 1.248 | 0.336 | 0.089 | 0.071 | 7.79 |
| PbO/HDPE | 38.84% | 15.78% | 1.221 | 0.328 | 0.114 | 0.516 | 6.08 |
Table 2 Neutron and gamma ray shielding parameters of the prepared samples
| Sample | Sn(%) | Sγ(%) | ρ/(g·cm-3) | Σ/cm-1 | μ/cm-1 | μm/(cm2·g-1) | HVL/cm |
|---|---|---|---|---|---|---|---|
| HDPE | 37.82% | 9.01% | 0.931 | 0.317 | 0.063 | 0.068 | 11.0 |
| B4C/HDPE | 38.39% | 11.83% | 1.113 | 0.323 | 0.084 | 0.075 | 8.25 |
| Eu2O3⁃S/B4C/HDPE | 43.66% | 13.48% | 1.224 | 0.383 | 0.097 | 0.079 | 7.15 |
| Eu2O3⁃C/B4C/HDPE | 39.55% | 12.47% | 1.248 | 0.336 | 0.089 | 0.071 | 7.79 |
| PbO/HDPE | 38.84% | 15.78% | 1.221 | 0.328 | 0.114 | 0.516 | 6.08 |
| Composite | Shielding field | Shielding performance | Ref |
|---|---|---|---|
| 30%B/70%HDPE | Neutron | Sn=92%(252Cf) | [ |
| 10%Er2O3/90%ABS | γ⁃rays | HVL=8.0 cm(137Cs) | [ |
| 20%PbWO4/10%B4C/70%HDPE | Neutron and γ⁃rays | Σ=0.224 cm-1(252Cf); HVL=6.48 cm(137Cs) | [ |
| 20%Eu2O3⁃S/10%B4C/70%HDPE | Neutron and γ⁃rays | Σ=0.383 cm-1(252Cf); HVL=7.15 cm(137Cs) | This work |
Table 3 Radiation shielding performance of different composites
| Composite | Shielding field | Shielding performance | Ref |
|---|---|---|---|
| 30%B/70%HDPE | Neutron | Sn=92%(252Cf) | [ |
| 10%Er2O3/90%ABS | γ⁃rays | HVL=8.0 cm(137Cs) | [ |
| 20%PbWO4/10%B4C/70%HDPE | Neutron and γ⁃rays | Σ=0.224 cm-1(252Cf); HVL=6.48 cm(137Cs) | [ |
| 20%Eu2O3⁃S/10%B4C/70%HDPE | Neutron and γ⁃rays | Σ=0.383 cm-1(252Cf); HVL=7.15 cm(137Cs) | This work |
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