Insights into the charge transfer during water-jet charging process of meltblown nonwoven fabrics

被引：0
|
作者：
He, Yulong [1 ]
Wang, Hong [1 ,2 ]
机构：
[1] Donghua Univ, Key Lab Text Sci &Technol, Minist Educ, Shanghai 201620, Peoples R China
[2] 2999 Renmin North Rd, Shanghai, Peoples R China
来源：
MATERIALS LETTERS | 2023年 / 341卷
关键词：
Fibre technology; Porous materials; Surfaces;
D O I：
10.1016/j.matlet.2023.134223
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Water-jet charging is one of the effectively methods to improve the filtration efficiency of polypropylene meltblown nonwoven fabric (PMNF) which is the core layer of face masks while its charging mechanism is still unclear. In this work, we directly investigate the charge transfer during the water-jet charging process by measuring charges carried by the water and PMNF in real time by using an electrostatic voltmeter and a portable petrol powered sprayer as the simulating water-jet charging equipment. Our work provides experimental evidences for understanding the charge transfer process during the water-jet charging treatment of PMNF and uncover the water-jet charging mechanism.
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页数：3
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