大学化学 >> 2020, Vol. 35 >> Issue (12): 94-100.doi: 10.3866/PKU.DXHX202008091

所属专题： 科学抗疫中的化学

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日常使用方式对一次性医用口罩微观结构和过滤效率的影响

孙立森1,*(), 刘莎莎1, 张晋芬1, 王琳2, 刘永梅1   

  1. 1 化学国家级实验教学示范中心(复旦大学), 上海 200433
    2 复旦大学环境科学与工程系, 上海 200438
  • 收稿日期:2020-08-31 录用日期:2020-10-15 发布日期:2020-11-03
  • 通讯作者: 孙立森 E-mail:lssun@fudan.edu.cn
  • 作者简介:孙立森, Email: lssun@fudan.edu.cn

Effect of Daily Use on Microstructure and Filtration Efficiency of Disposable Medical Face Masks

Lisen Sun1,*(), Shasha Liu1, Jinfen Zhang1, Lin Wang2, Yongmei Liu1   

  1. 1 National Demonstration Center for Experimental Chemistry Education(Fudan University), Shanghai 200433, P. R. China
    2 Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, P. R. China
  • Received:2020-08-31 Accepted:2020-10-15 Published:2020-11-03
  • Contact: Lisen Sun E-mail:lssun@fudan.edu.cn

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摘要：

新型冠状病毒肺炎(COVID-19)的出现及蔓延使得口罩成为人们工作、生活的常用防护用品。本文介绍了常用一次性医用口罩的防护机理，并考查口罩在使用和消毒后微观结构和过滤效率的变化，有助于提升人们对口罩防护作用的正确认识。

关键词: 口罩, 熔喷布, 颗粒物, 过滤效率

Abstract:

The global spread of Corona Virus Disease 2019 (COVID-19) makes face masks become common protective equipment for daily life. This paper introduces the protection mechanism of disposable medical face masks, and investigates the changes of microstructure and filtration efficiency of disposable medical face masks after use and disinfection. It is helpful to get more understanding about protective effect of face masks.

Key words: Face mask, Meltblown fabric, Particulate matter, Filtration efficiency