Abstract
In this study, meta-aramid (PMIA) high-temperature filtration membranes with different solid content in N,N-dimethylacetamide (DMAC)/Anhydrous LiCl (LiCl)(100/5) mixed solvent system are prepared by electrospinning method. It is found that the retention rate of breaking strength of 12 wt% PMIA membrane is the highest, which is 71.29 %. With the increase of solid content in PMIA spinning solution, the crystallinity and air permeability of PMIA filter membrane also increase. Among them, the crystallinity of 12 wt% PMIA nanofiber membrane was the highest and the air permeability of 14 wt% PMIA nanofiber membrane reached 50.68 mm/s. The experimental results illustrate that the filtration efficiency of PMIA nanofiber filter membrane for 0.1 µm, 0.2 µm and 0.3 µm PSL are all about 99.9 % at different solid contents.
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Acknowledgement
This work was supported by the National Natural Science Foundation of China (Grant No. 11702169), Scientific Research Staring Foundation of Shanghai University of Engineering Science (Grant No. 2017-19). This work was supported by Talents Action Program of Shanghai University of Engineering Science (Grant NO. 2017RC432017) and National Natural Science Youth Fund (Grant NO. 2041808165). Application research on key Technologies of nano forming and surface treatment of flexible materials with special functions (Grant NO. 0239-E2-6202-19-023).
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Yu, J., Tian, X., Xin, B. et al. Preparation and Characterization of PMIA Nanofiber Filter Membrane for Air Filter. Fibers Polym 22, 2413–2423 (2021). https://doi.org/10.1007/s12221-021-1123-6
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DOI: https://doi.org/10.1007/s12221-021-1123-6