口罩过滤性能及其影响因素分析  

Analysis of filtration performance of masks and its influencing factors

作　　者：郭颖赫 李冬辉 孙志钜 邱乾胜[4] 柳静献[4] Guo Yinghe;Li Donghui;Sun Zhiju;Qiu Qiansheng;Liu Jingxian(School of Electrical and Information Engineering,Tianjin University,Tianjin 300072,China;Zhejiang Yubang Filter Material Technology Co.,Ltd.,Haining 314400,Zhejiang,China;School of Environmental and Chemical Engineering,Shenyang Ligong University,Shenyang 110159,Liaoning,China;Filter Test Center,Northeastern University,Shenyang 110819,Liaoning,China)

机构地区：[1]天津大学电气自动化与信息工程学院,天津300072 [2]浙江宇邦滤材科技有限公司,浙江海宁314400 [3]沈阳理工大学环境与化学工程学院,辽宁沈阳110159 [4]东北大学滤料检测中心,辽宁沈阳110819

出　　处：《产业用纺织品》2024年第4期33-41,共9页Technical Textiles

基　　金：浙江省博士后科研项目择优资助二等资助(ZJ2023129);高牢度纳米纤维复合滤料研发项目资助(60800020013);沈阳理工大学高层次人才科研支持经费资助(1010147001101)。

摘　　要：科学佩戴口罩是防止颗粒物及气溶胶对人体健康产生威胁的重要手段,而口罩的性能决定了防护效果。收集了市场上常见的12种不同类型的口罩,分析其结构特点,并通过设置3种不同的流量,模拟分析人体在低速呼吸、正常呼吸和高速呼吸状态下口罩对颗粒物的过滤效率及阻力。研究结果表明:随着测试流量的增加,口罩对颗粒物的过滤效率呈下降趋势。12种口罩中,KN95型口罩、N95型防尘口罩和KN90型口罩的过滤性能较稳定,可用于对防护要求较高的场所。活性炭口罩和2层棉布口罩的防护效果较差,不宜作为防护口罩应用于医疗领域。研究结果为公众合理选用口罩提供参考。Wearing masks scientifically is an important method to prevent the threat of particulate matters and aerosols on humans,and the performance of masks determines the protective effect.Twelve different types of commonly used masks were collected,and the structural characteristics of different masks were analyzed.By setting three different flow rates to simulated human low-speed breathing,normal breathing,and high-speed breathing states,the filtration efficiency and resistance of different types of masks to particulate matters were analyzed.The results showed that the filtration efficiency of masks on particulate matters decreased with the increase of test flow rates.Among the 12 types of masks,KN95 masks,N95 masks and KN90 masks demonstrated more stable filtration performance,which could be used in places with higher protection requirements.The protective effect of activated carbon masks and 2-layer cotton masks was poor,and it was they were not suitable to be used as protective masks in the medical field.The research results can provide references for the public to choose masks reasonably.

关 键 词：口罩 过滤效率 流量 过滤性能 阻力 静电势 

分 类 号：TS176[轻工技术与工程—纺织材料与纺织品设计]