新型废渣/天然复合材料作为保护工人免受辐射危害的柔性材料
Ahmed M El-Khatib1, A S Doma2, Mahmoud I Abbas3
1Physics Department, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt. ahmed.elkhatib@alexu.edu.eg.
Scientific reports
|August 22, 2023
概括
电弧炉 (EAF) 渣被用来制造环保的马辐射屏蔽复合材料与天然 (NR). 与微型填充器相比,纳米尺寸的EAF渣渣填充器表现出优越的屏蔽性能,提供了灵活,轻量级和无替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 辐射物理 辐射物理
- 环境工程 环境工程
背景情况:
- 传统的马辐射屏蔽材料往往含有,造成环境和健康问题.
- 工业副产品,如电弧炉 (EAF) 渣,为开发可持续的屏蔽解决方案提供了机会.
- 天然 (NR) 为复合材料开发提供了灵活和轻量级的矩阵.
研究的目的:
- 调查EAF渣作为填充材料的潜力,用于开发环保的马辐射屏蔽复合材料.
- 评估微和纳米EAF渣颗粒大小对NR复合材料屏蔽性能的影响.
- 评估在医疗和工业应用中使用这些复合材料作为替代基屏蔽的可行性.
主要方法:
- 将不同度的微型EAF渣渣 (0-800 phr) 纳入天然 (NR) 基质中.
- 使用高能球磨法制备纳米尺寸EAF渣渣颗粒.
- 使用闪光探测器和标准放射性源 (例如152Eu,137Cs) 实验确定玛辐射屏蔽参数 (例如线性衰减系数,HVL).
- 使用几何渐进方法对屏蔽参数进行计算分析,包括有效原子数 (Zeff),等效原子数 (Zeq) 和暴露积累因子.
主要成果:
- 在NR矩阵中增加EAF渣的重量分数显著提高了玛辐射屏蔽性能.
- 与纯NR复合材料相比,含有800phr微EAF渣的复合材料呈现出较高的线性衰减系数 (0.2939cm−1) 和较低的半值层 (2.36cm).
- 与纳米大小的EAF渣增强的NR复合材料在相同负载下与微型EAF渣相比,显示出更高的马辐射屏蔽效率.
结论:
- 渣是一种可行的副产品材料,用于制造有效且环保的玛辐射屏蔽复合材料.
- 开发的EAF/NR复合材料为辐射保护提供了灵活,轻量,低成本和无的替代方案.
- 纳米尺寸的EAF渣渣颗粒提供了增强的屏蔽性能,使它们特别有希望的先进的辐射屏蔽应用.
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