针对一种新型适合地下工程高湿度、不透气特殊环境的防氡涂层的性能进行了研究。局部静态法和RAD-7型α能谱氡气检测仪对防氡效率的测试结果表明,随涂覆厚度的增加防氡效率上升,当涂覆厚度为0.8mm时,新型防氡涂层的防氡效率为92.92%,涂覆厚度为2.0和2.4mm时,防氡效率分别为98.91%和99.02%。实干时间测试发现,温度为23.7℃、相对湿度RH为95%时,涂覆厚度为2.0mm的新型防氡涂层经12.1h完全干燥;耐老化性能研究显示,新型防氡涂层具有优异的耐高浓度氡辐射、耐湿热以及耐霉菌老化的性能。因此,这种新型防氡涂层可以很好地满足地下工程苛刻的应用要求。
This research focused on the performances of a new anti-radon paintcoat which was suitable for the special high humidity and inclosed environment.Test results of the radon mitigation efficiency using the local static method and the RAD7 radon detector test show that the radon mitigation efficiency is rising along with the coating thickness of the paintcoat,the radon mitigation efficiency is superior 92% when the coating thickness is 0.8mm,in the meanwhile,the radon mitigation efficiency reach to 98.91% and 99.02% when the coating thickness is 2.0 and 2.4mm respectively.The hard dry time of this new anti-radon paintcoat is 12.1h when the temperature is 23.7℃,the RH is 95% and the thickness is 2.0 mm.Researches of the aging resistance of the new anti-radon paintcoat show better performance in resistancing to high concentration of radon radiation,hot and humidity as well as resistancing to mould fungus.So,the new anti-radon paintcoat can well meet the demanding application-required of underground engineering.
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