Chem. J. Chinese Universities ›› 2024, Vol. 45 ›› Issue (9): 20240142.doi: 10.7503/cjcu20240142
• Article: Inorganic Chemistry • Previous Articles Next Articles
LU Yidong1,2, HUO Zhipeng1(), ZHANG Hong1, ZHONG Guoqiang1
Received:
2024-03-25
Online:
2024-09-10
Published:
2024-05-23
Contact:
HUO Zhipeng
E-mail:zhipeng.huo@ipp.ac.cn
Supported by:
CLC Number:
TrendMD:
LU Yidong, HUO Zhipeng, ZHANG Hong, ZHONG Guoqiang. Preparation of Micron Plate Sm2O3 Fillers Reinforced High-density Polyethylene Composites for Neutron and Gamma Radiation Shielding[J]. Chem. J. Chinese Universities, 2024, 45(9): 20240142.
Material | T5%/℃ | T50%/℃ | Tonset/℃ | Tp/℃ |
---|---|---|---|---|
HDPE | 449.1 | 477.1 | 119.3 | 131.3 |
30%B4C/70%HDPE | 444.1 | 478.5 | 120.4 | 136.5 |
10%Sm2O3-I/20%B4C/70%HDPE | 447.5 | 482.5 | 123.8 | 140.6 |
10%Sm2O3-II/20%B4C/70%HDPE | 444.7 | 479.3 | 123.1 | 139.7 |
Table 1 Thermal stability parameters of composite materials and pure HDPE material
Material | T5%/℃ | T50%/℃ | Tonset/℃ | Tp/℃ |
---|---|---|---|---|
HDPE | 449.1 | 477.1 | 119.3 | 131.3 |
30%B4C/70%HDPE | 444.1 | 478.5 | 120.4 | 136.5 |
10%Sm2O3-I/20%B4C/70%HDPE | 447.5 | 482.5 | 123.8 | 140.6 |
10%Sm2O3-II/20%B4C/70%HDPE | 444.7 | 479.3 | 123.1 | 139.7 |
Material | Shore hardness/HD | Young’s modulus/MPa | Yield stress, σy/MPa | Tensile stress, σb/MPa | Elongation at break (%) |
---|---|---|---|---|---|
HDPE | 60.9 ± 0.74 | 747.9 | 18.1 | 21.1 | 249.8 |
30%B4C/70%HDPE | 69.4 ± 1.51 | 1026.6 | 20.7 | 18.6 | 36.9 |
10%Sm2O3-I/20%B4C/70%HDPE | 66.6 ± 1.31 | 1109.1 | 22.6 | 21.5 | 27.9 |
10%Sm2O3-II/20%B4C/70%HDPE | 64.0 ± 0.76 | 1232.5 | 21.6 | 20.9 | 16.2 |
Table 2 Mechanical parameters of composite materials and pure HDPE material
Material | Shore hardness/HD | Young’s modulus/MPa | Yield stress, σy/MPa | Tensile stress, σb/MPa | Elongation at break (%) |
---|---|---|---|---|---|
HDPE | 60.9 ± 0.74 | 747.9 | 18.1 | 21.1 | 249.8 |
30%B4C/70%HDPE | 69.4 ± 1.51 | 1026.6 | 20.7 | 18.6 | 36.9 |
10%Sm2O3-I/20%B4C/70%HDPE | 66.6 ± 1.31 | 1109.1 | 22.6 | 21.5 | 27.9 |
10%Sm2O3-II/20%B4C/70%HDPE | 64.0 ± 0.76 | 1232.5 | 21.6 | 20.9 | 16.2 |
Material | ρ/(g‧cm-3) | S95%,n/cm | Σ/cm-1 | S70%,γ /cm | μ/cm-1 | μm/(cm2‧g-1) | HVL/cm |
---|---|---|---|---|---|---|---|
HDPE | 0.941 | 15.4 | 0.181 | 17.5 | 0.065 | 0.069 | 10.6 |
30%B4C/70%HDPE | 1.164 | 13.1 | 0.212 | 15.4 | 0.076 | 0.065 | 9.1 |
10%Sm2O3⁃I/20%B4C/70%HDPE | 1.217 | 11.2 | 0.246 | 13.7 | 0.086 | 0.071 | 8.0 |
10%Sm2O3⁃II/20%B4C/70%HDPE | 1.201 | 12.3 | 0.222 | 14.3 | 0.084 | 0.070 | 8.3 |
Table 3 Neutron and gamma radiation shielding parameters of different materials
Material | ρ/(g‧cm-3) | S95%,n/cm | Σ/cm-1 | S70%,γ /cm | μ/cm-1 | μm/(cm2‧g-1) | HVL/cm |
---|---|---|---|---|---|---|---|
HDPE | 0.941 | 15.4 | 0.181 | 17.5 | 0.065 | 0.069 | 10.6 |
30%B4C/70%HDPE | 1.164 | 13.1 | 0.212 | 15.4 | 0.076 | 0.065 | 9.1 |
10%Sm2O3⁃I/20%B4C/70%HDPE | 1.217 | 11.2 | 0.246 | 13.7 | 0.086 | 0.071 | 8.0 |
10%Sm2O3⁃II/20%B4C/70%HDPE | 1.201 | 12.3 | 0.222 | 14.3 | 0.084 | 0.070 | 8.3 |
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