Research on Loading Filtration Performances of Electret Polypropylene Melt Blown Nonwovens
The filtration performances of electret materials will change during the continuous use. In order to investigate the mechanism, the filtration performances of electret materials are tested under various loading conditions. The polypropylene melt blown nonwovens of electret materials are prepared by...
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| Format: | Article |
| Language: | English |
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Editorial Department of Journal of Nantong University (Natural Science Edition)
2020-09-01
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| Series: | Nantong Daxue xuebao. Ziran kexue ban |
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| Online Access: | https://ngzke.cbpt.cnki.net/portal/journal/portal/client/paper/eda6116da232475b96f5d096f4ef5ec6 |
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| _version_ | 1849222396394864640 |
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| author | ZHANG Haifeng; LIANG Xiaopeng; ZHANG Xing; LIU Jinxin; ZHANG Wei; ZHANG Yu |
| author_facet | ZHANG Haifeng; LIANG Xiaopeng; ZHANG Xing; LIU Jinxin; ZHANG Wei; ZHANG Yu |
| author_sort | ZHANG Haifeng; LIANG Xiaopeng; ZHANG Xing; LIU Jinxin; ZHANG Wei; ZHANG Yu |
| collection | DOAJ |
| description | The filtration performances of electret materials will change during the continuous use. In order to investigate the mechanism, the filtration performances of electret materials are tested under various loading conditions. The polypropylene melt blown nonwovens of electret materials are prepared by the melt blown and corona charging technologies, and the influences of loading time, material characteristics and aerosol flow rate on the loading filtration efficiency and pressure drop are tested by the TSI8130. The SEM method is used to evaluate the surface morphology of the electret melt blown nonwovens after loading different time, and the filtration mechanism is further analyzed. The results reveal that the efficiency of electret melt-blown nonwoven initially presents a decreasing trend, and reaches the lowest value of 98.04% after 8 minutes, followed by an increase and reaches a constant value after loading 29 minutes.Meanwhile, the pressure drop increases gradually. The main reason for this is the electrostatic attraction plays an important role at the initial stage, and the charges on the electret material are neutralized by the captured particles, which results in the filtration efficiency decrease. As more and more particles are accumulated, the mechanical filtration is enhanced and it results in the filtration efficiency increase. In addition, the material characteristics and aerosol flow rate will also affect the loading filtration performances |
| format | Article |
| id | doaj-art-c24c683eef2f48fb9f26b8997eba7840 |
| institution | Kabale University |
| issn | 1673-2340 |
| language | English |
| publishDate | 2020-09-01 |
| publisher | Editorial Department of Journal of Nantong University (Natural Science Edition) |
| record_format | Article |
| series | Nantong Daxue xuebao. Ziran kexue ban |
| spelling | doaj-art-c24c683eef2f48fb9f26b8997eba78402025-08-26T05:36:34ZengEditorial Department of Journal of Nantong University (Natural Science Edition)Nantong Daxue xuebao. Ziran kexue ban1673-23402020-09-011903616710.12194/j.ntu.20191018003Research on Loading Filtration Performances of Electret Polypropylene Melt Blown NonwovensZHANG Haifeng; LIANG Xiaopeng; ZHANG Xing; LIU Jinxin; ZHANG Wei; ZHANG Yu0School of Textile and Clothing, Nantong University;School of Textile, Donghua UniversityThe filtration performances of electret materials will change during the continuous use. In order to investigate the mechanism, the filtration performances of electret materials are tested under various loading conditions. The polypropylene melt blown nonwovens of electret materials are prepared by the melt blown and corona charging technologies, and the influences of loading time, material characteristics and aerosol flow rate on the loading filtration efficiency and pressure drop are tested by the TSI8130. The SEM method is used to evaluate the surface morphology of the electret melt blown nonwovens after loading different time, and the filtration mechanism is further analyzed. The results reveal that the efficiency of electret melt-blown nonwoven initially presents a decreasing trend, and reaches the lowest value of 98.04% after 8 minutes, followed by an increase and reaches a constant value after loading 29 minutes.Meanwhile, the pressure drop increases gradually. The main reason for this is the electrostatic attraction plays an important role at the initial stage, and the charges on the electret material are neutralized by the captured particles, which results in the filtration efficiency decrease. As more and more particles are accumulated, the mechanical filtration is enhanced and it results in the filtration efficiency increase. In addition, the material characteristics and aerosol flow rate will also affect the loading filtration performanceshttps://ngzke.cbpt.cnki.net/portal/journal/portal/client/paper/eda6116da232475b96f5d096f4ef5ec6electret materialsloading filtrationpolypropylenenonwovensmelt blownaerosol flow rate |
| spellingShingle | ZHANG Haifeng; LIANG Xiaopeng; ZHANG Xing; LIU Jinxin; ZHANG Wei; ZHANG Yu Research on Loading Filtration Performances of Electret Polypropylene Melt Blown Nonwovens Nantong Daxue xuebao. Ziran kexue ban electret materials loading filtration polypropylene nonwovens melt blown aerosol flow rate |
| title | Research on Loading Filtration Performances of Electret Polypropylene Melt Blown Nonwovens |
| title_full | Research on Loading Filtration Performances of Electret Polypropylene Melt Blown Nonwovens |
| title_fullStr | Research on Loading Filtration Performances of Electret Polypropylene Melt Blown Nonwovens |
| title_full_unstemmed | Research on Loading Filtration Performances of Electret Polypropylene Melt Blown Nonwovens |
| title_short | Research on Loading Filtration Performances of Electret Polypropylene Melt Blown Nonwovens |
| title_sort | research on loading filtration performances of electret polypropylene melt blown nonwovens |
| topic | electret materials loading filtration polypropylene nonwovens melt blown aerosol flow rate |
| url | https://ngzke.cbpt.cnki.net/portal/journal/portal/client/paper/eda6116da232475b96f5d096f4ef5ec6 |
| work_keys_str_mv | AT zhanghaifengliangxiaopengzhangxingliujinxinzhangweizhangyu researchonloadingfiltrationperformancesofelectretpolypropylenemeltblownnonwovens |