高Z-天然皮革复合γ射线屏蔽材料的制备及性能研究

doi:10.19677/j.issn.1004-7964.2022.04.001

Leather Science and Engineering ›› 2022, Vol. 32 ›› Issue (4): 1-7.doi: 10.19677/j.issn.1004-7964.2022.04.001

Preparation of High Z-Natural Leather Composites and their γ-rays Shielding Performances Investigation

SHEN Yue^1,2, ZHOU Jibo^1,2, HAN Zheng³, LI Hao^1,2, YAN Linping^1,2, LIAO Xuepin^1,2,*, SHI Bi^1,2

1. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China;
2. The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China;
3. Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610065, China

Received:2021-12-29 Published:2022-08-28 Online:2022-07-11

Abstract

Abstract: In this work, natural leather (CL)-based high-Z composites (HZ-CL) were successfully prepared by “equivalent-volume impregnation method”. The effects of different thicknesses, high-Z element kinds and loading contents of HZ-CL on shielding performances of γ-rays in incident of 59.6 keV (²⁴¹Am) and 121.78 keV (¹⁵²Eu) were thoroughly investigated. It demonstrated that the prepared composites with higher thickness and element content exhibited better shielding performances. Furthermore, the shielding performances of Ba-CL was obviously higher than that of Bi-CL in incident of 59.6 keV. Meanwhile, Bi-CL decayed more γ-rays energy than Ba-CL in incident of 121.78 keV. Additionally, the mass attenuation coefficient of Ba_5.46-CL was 4.42 cm²·g^-1 in incident of 59.6 keV, while it was 1.33 cm²·g^-1 for that of Bi_5.46-CL (0.8 mm) in incident of 121.78 keV. The protection performances of Ba_5.46 -CL (5.46 mmol·cm^-3, 0.8 mm) was comparable to Pb plate (54.54 mmol·cm^-3, 0.1 mm) in incident of 59.6 keV. In addition to the advantages of low density and softness tensile and tear strength of HZ-CL. Therefore, HZ-CL shows well application prospects for the prevention the damage of γ-rays.

Key words: natural leather, high-Z element, gamma rays, wearability, attenuation efficiency

CLC Number:

O644

SHEN Yue, ZHOU Jibo, HAN Zheng, LI Hao, YAN Linping, LIAO Xuepin, SHI Bi. Preparation of High Z-Natural Leather Composites and their γ-rays Shielding Performances Investigation[J]. Leather Science and Engineering, 2022, 32(4): 1-7.

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Preparation of High Z-Natural Leather Composites and their γ-rays Shielding Performances Investigation

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