| Improving the Surface Performance of Electrospun Air Filter Paper Using Multi-walled Carbon Nanotubes |
| Received:October 27, 2021 Click here to download the full text |
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| Author Name | Affiliation | | Su Weiyin | Tianjin Key Lab of Pulp & Paper, Tianjin University of Science and Technology, Tianjin, 300457, China | | Hui Lanfeng | Tianjin Key Lab of Pulp & Paper, Tianjin University of Science and Technology, Tianjin, 300457, China | | Gao Yang | Tianjin Key Lab of Pulp & Paper, Tianjin University of Science and Technology, Tianjin, 300457, China | | Zhao Mingyue | Tianjin Key Lab of Pulp & Paper, Tianjin University of Science and Technology, Tianjin, 300457, China |
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| Abstract:In this study, air filter base paper (P) was used as the receiving substrate, polyvinyl alcohol (PVA) and PVA/multi-walled carbon nanotube (MWCNT) spinning solutions were used to prepare electrospun air filter papers (P-PVA and P-PVA/MWCNT, respectively). Then, P-PVA/MWCNT was calendered under different pressures. The effect of MWCNTs on the surface performance of P-PVA/MWCNT was explored and the influence of calendering technology on their structure and filtration characteristics was analyzed. Electron scanning microscope observation showed that the PVA nanofibers on the surface of P-PVA/MWCNT had no beading, and MWCNTs weakened the surface electrostatic phenomenon and had a good micromorphology. During the calendering process, with an increase in pressure, the mean pore size and surface roughness of P-PVA/MWCNT decreased, the initial resistance increased, and the filtration efficiency changed slightly. |
| keywords:electrostatic effect electrospun air filter paper multi-walled carbon nanotubes calendering filter characteristics |
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