Study On Preparation And Properties Of Radon Radiation Protection Materials

The in-situ uranium mining process is a very advanced mining technology in the world.It is a kind of uranium in the ore that is selectively dissolved by the chemical reaction of the leaching solution and the mineral under natural burial conditions,without the need for ore mining,crushing,grinding.The new uranium mining method,which combines solid-liquid separation,collection and smelting,greatly shortens the mining process,but the uranium process releases 222 Rn,which overflows from the injection hole and the crack around the liquid hole,and the decay occurs.Alpha,beta,and gamma rays pose a threat to the environment surrounding the mining area and the health of the miners.In this paper,the leakage of uranium mines in the uranium mine is designed from the perspective of protective materials.The existing anti-caries materials have technical problems such as poor adhesion and poor ray shielding performance.Based on the experimental method,according to the material requirements of the environment of the immersed uranium mine,the materials of polyurethane cemented lead slag,lead ore,tungsten slag and tungsten ore were selected for the ratio production,and the mechanical properties test and aging performance test were carried out.Radiation shielding performance test,material micromorphology analysis,the results are as follows:The polyurethane material with four kinds of slag is cemented,and its compressive strength,aging resistance and radiation shielding performance are improved compared with pure polyurethane materials,especially the polyurethane foaming compressive strength of cemented tungsten ore is most obviously improved.The ratio of 3:1 tungsten ore cemented polyurethane material is 160.16% higher than that of pure polyurethane foam when the pressure is 10%,and the radiation semi-absorption thickness is reduced by 16.86cm(77.6%).It is the most superior in the materials tested and has good use value.By analyzing the composition of slag,observing the formation of solid rubber material and the microscopic morphology before and after compression,the mechanism of mechanical properties and the influencing factors of radiation shielding performance were analyzed from the microscopic point of view,which pointed out the direction for the improvement of material performance and further research.