Research status of charge stability and charging method of nonwoven electret

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  • Key Laboratory of Textile Science & Technology,Ministry of Education,Donghua University, Shanghai 201620

Received date: 2020-10-12

  Revised date: 2021-11-13

  Online published: 2022-02-08

Abstract

In order to solve the filtration efficiency decay of face masks which is caused by the poor charge stability of the middle functional layer of the melt-blown nonwoven fabric,in combination with the charge stability,the present status and problems of corona charging and triboelectric charging methods were introduced.Patents issued by 3M company about meltblown nonwoven fabrics used in face masks were analyzed as well.In conclusion,it was suggested that the triboelectric charging method should be investigated further as one of the main developing direction of high efficiency air filter,and it was considered to have potential applications in personal protection and air filtration.

Cite this article

Lu Chen, Liu Li, Wang Hong . Research status of charge stability and charging method of nonwoven electret[J]. New Chemical Materials, 2022 , 50(1) : 62 -65 . DOI: 10.19817/j.cnki.issn1006-3536.2022.01.013

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