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材料导报  2021, Vol. 35 Issue (Z1): 328-330    
  金属与金属基复合材料 |
柔性含铅γ辐射屏蔽材料的制备及性能
谭松波1, 王响成2, 李送送2
1 南华大学附属南华医院,衡阳 421002
2 南华大学核科学技术学院,衡阳 421001
Preparation and Properties of Flexible Lead-γ-radiation Shielding Materials
TAN Songbo1, WANG Xiangcheng2, LI Songsong2
1 Affiliated Nanhua Hospital, University of South China, Hengyang 421002, China
2 School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
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摘要 从γ射线防护材料的研究现状和需求入手,制备了含MWCNTs和铅的核辐射防护材料并测试其机械及辐射防护性能。使用高剂量率的γ辐射对碳纳米管进行剪切使其功能化,以机械共混法为主要加工方法制备含短切碳纳米管的含铅 EVA 高分子树脂辐射防护型片材,基于高分子化合物的辐照交联原理,利用高能电子束加速器对复合材料进行辐照交联改性,通过拉伸测试对成品的力学性能进行表征,通过辐射屏蔽实验测试成品的屏蔽性能,验证和探讨片材中加入短切后碳纳米管的改性原理、辐射屏蔽机理。所制备的γ射线辐射防护材料具有质轻、柔性、环境保护性及对伽马射线的较高质量衰减特性,能很好地满足防护效果与轻量便携的应用背景,对柔性辐射防护材料设计具有参考作用。
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谭松波
王响成
李送送
关键词:  碳纳米管  EVA  复合材料  辐照交联    
Abstract: IIn this paper, starting from the research status and requirements of γ-ray protection materials, nuclear radiation protection materials containing MWCNTs and lead was prepared, and its mechanical properties and radiation protection properties were tested.Use high-dose rate gamma radiation to shear the carbon nanotubes to make them functional, and use the mechanical blending method as the main processing method to prepare the lead-containing EVA polymer resin radiation protection sheet containing chopped carbon nanotubes. Based on the principle of radiation cross-linking of polymer compounds, the composite material is modified by radiation cross-linking using a high-energy electron beam accelerator, the mechanical properties of the finished product are characterized by tensile testing, and the shielding performance of the finished product is tes-ted through radiation shielding experiments,verify and discuss the modification principle and radiation shielding mechanism of short-cut carbon nanotubes added to the sheet. The prepared gamma-ray radiation protection material has light weight, flexibility, environmental protection and high quality attenuation characteristics for gamma rays, which can well meet the protection effect and the application background of light weight and portability. It is a reference for the design of flexible radiation protection materials.
Key words:  carbon nanotubes    EVA    composite    irradiation crosslinking
                    发布日期:  2021-07-16
ZTFLH:  O536  
通讯作者:  411876744@qq.com   
作者简介:  谭松波,在南华大学附属南华医院从事肿瘤放疗工作,目前主要辐射防护相关的研究。
引用本文:    
谭松波, 王响成, 李送送. 柔性含铅γ辐射屏蔽材料的制备及性能[J]. 材料导报, 2021, 35(Z1): 328-330.
TAN Songbo, WANG Xiangcheng, LI Songsong. Preparation and Properties of Flexible Lead-γ-radiation Shielding Materials. Materials Reports, 2021, 35(Z1): 328-330.
链接本文:  
http://www.mater-rep.com/CN/  或          http://www.mater-rep.com/CN/Y2021/V35/IZ1/328
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