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

皮革科学与工程 ›› 2022, Vol. 32 ›› Issue (4): 1-7.doi: 10.19677/j.issn.1004-7964.2022.04.001

• 试验研究 • 下一篇

高Z-天然皮革复合γ射线屏蔽材料的制备及性能研究

沈悦^1,2, 周继博^1,2, 韩正³, 李昊^1,2, 闫林萍^1,2, 廖学品^1,2,*, 石碧^1,2

1.四川大学制革清洁技术国家工程实验室,四川成都 610065;
2.四川大学皮革化学与工程教育部重点实验室,四川成都 610065;
3.四川大学原子核科学技术研究所,四川成都 610065

收稿日期:2021-12-29 出版日期:2022-08-28 上线日期:2022-07-11
通讯作者: *廖学品,xpliao@scu.edu.cn,主要从事胶原纤维功能材料、制革清洁技术等研究。
作者简介:沈悦（11995-）,女,硕士研究生,jsxhshenyue1995@163.com。
基金资助:
国家自然科学基金（21878191）

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 Online:2022-08-28 Published:2022-07-11

摘要/Abstract

摘要： 以天然皮革（CL）为基础材料,通过“等体积浸渍法”将高Z元素引入天然皮革中,制备了γ射线复合屏蔽材料（HZ-CL）。采用²⁴¹Am（59.6 keV）和¹⁵²Eu（121.78 keV）放射源对不同厚度、高Z元素和负载量的HZ-CL进行γ射线屏蔽性能测试,结果发现,HZ-CL的屏蔽性能随着复合材料的厚度和负载量的增加而提升。此外,Ba-CL对²⁴¹Am屏蔽效果明显优于Bi-CL,而Bi-CL对¹⁵²Eu屏蔽效果更好。当厚度为0.8 mm,Ba的负载量为5.46 mmol·cm^-3时,Ba_5.46-CL屏蔽材料对²⁴¹Am放射源（59.6 keV）的质量衰减系数达到4.42 cm²·g^-1。当厚度为0.8 mm,Bi的负载量为5.46 mmol·cm^-3时,Bi_5.46-CL屏蔽材料对¹⁵²Eu（121.78 keV）放射源的质量衰减系数达到1.33 cm²·g^-1。其中,0.8 mm的Ba_5.46-CL对59.6 keV能量的屏蔽性能与0.1 mm铅板（54.54 mmol·cm^-3）相近。此外,γ射线屏蔽材料的物理机械性能的测试结果表明,HZ-CL除了具有密度小、柔软等特点外,还提高了天然皮革的抗张强度和撕裂强度,显示出良好的应用前景。

关键词: 天然皮革, 高Z元素, γ射线, 可穿戴, 衰减效率

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

中图分类号:

O644

沈悦, 周继博, 韩正, 李昊, 闫林萍, 廖学品, 石碧. 高Z-天然皮革复合γ射线屏蔽材料的制备及性能研究[J]. 皮革科学与工程, 2022, 32(4): 1-7.

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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高Z-天然皮革复合γ射线屏蔽材料的制备及性能研究

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

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