一种新型梯度防核辐射材料的制备

Preparation of the New-type Gradient Nuclear Radiation Shielding Material

以氧化镥、钨、聚乙烯为主要原料,运用偶联剂处理的机械共混法、酸碱反应法、原位反应法制备出一种新型梯度防核辐射材料,测试结果表明:制得的新型梯度防核辐射材料,具有良好的拉伸性能,对β射线、γ射线均有很好的屏蔽效果,无铅毒、屏蔽效能持久,综合性能良好。这种梯度材料能根据具体辐射环境灵活调整组成材料的种类与顺序,具有良好的应用价值与使用前景。

A new-type gradient nuclear radiation shielding material was prepared for utilizing Lu203 ,tungsten and polyethylene as main raw materials by mechanical blending method handled with coupling agent, acid and alkali reaction method and in-situ reaction. Afterwards hot-press processing and layered hot-pressing superimposition was used to process materials and then gradient materials were obtained. At last,monolayer and gradient materials were characterized and tested. The results indicated that： the new gradient material had good tensile properties. Meanwhile, beta and gamma rays could be shielded well, it oneself had lead-free poison, the lasting shielding effectiveness, the good comprehensive shielding performance,and it could flexibly adjust the types and the order of monolayer materials for getting corresponding gradient materials according to the specific radiation environment. The gradient materials had a good application future.