Household Materials Selection for Homemade Cloth Face Coverings and Their Filtration Efficiency Enhancement with Triboelectric Charging
| Autor: | Xuanze Yu, May C. Chu, Amy Price, Mervin Zhao, Steven Chu, Wang Xiao, Lei Liao, Wang Qiqi, Ying Ling Lin, Larry F. Chu, F. Selcen Kilinc-Balci, Haotian Wang, Yi Cui |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Letter
business.product_category Materials science cloth filtration efficiency Coronavirus disease 2019 (COVID-19) Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Pneumonia Viral Air Microbiology Economic shortage Bioengineering 02 engineering and technology Synthetic materials law.invention Betacoronavirus chemistry.chemical_compound face masks Electricity law Humans Nanotechnology General Materials Science Particle Size Respirator Pandemics Personal Protective Equipment Triboelectric effect Filtration Aerosols facial coverings Polypropylene SARS-CoV-2 triboelectricity Textiles Mechanical Engineering Masks COVID-19 Equipment Design General Chemistry 021001 nanoscience & nanotechnology Pulp and paper industry Condensed Matter Physics Nanostructures chemistry Microscopy Electron Scanning Coronavirus Infections 0210 nano-technology business |
| Zdroj: | Nano Letters |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/acs.nanolett.0c02211 |
| Popis: | The COVID-19 pandemic is currently causing a severe disruption and shortage in the global supply chain of necessary personal protective equipment (e.g., N95 respirators). The U.S. CDC has recommended use of household cloth by the general public to make cloth face coverings as a method of source control. We evaluated the filtration properties of natural and synthetic materials using a modified procedure for N95 respirator approval. Common fabrics of cotton, polyester, nylon, and silk had filtration efficiency of 5–25%, polypropylene spunbond had filtration efficiency 6–10%, and paper-based products had filtration efficiency of 10–20%. An advantage of polypropylene spunbond is that it can be simply triboelectrically charged to enhance the filtration efficiency (from 6 to >10%) without any increase in pressure (stable overnight and in humid environments). Using the filtration quality factor, fabric microstructure, and charging ability, we are able to provide an assessment of suggested fabric materials for homemade facial coverings. |
| Databáze: | OpenAIRE |
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