Journal
MACROMOLECULAR MATERIALS AND ENGINEERING
Volume 305, Issue 4, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mame.201900856
Keywords
air filtration materials; electret materials; electrospinning; magnetic effects
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Electrospun electret filter material is widely studied because of its excellent removal effect on particulate matter from air streams. Here, a kind of high efficiency and low pressure drop nanofiber (NF) membrane with both electret effect and magnetic effect is developed, and compounded it with glass fiber mesh and polyester (polyethylene terephthalate) mesh to prepare a sandwich structure of NF anti-haze window screen. Under the synergistic effect of magnetic particles, when the density is 2.06 g m(-2), the filtration efficiency of NF anti-haze window screen can reach 99.95% for the fine particles below 0.3 mu m, while the filtration pressure drop is only 58.5 Pa, with good light transmittance and excellent breaking strength (6.32 MPa). Therefore, polyvinylidene fluoride/Fe3O4 composite NF membrane has a potential application prospect in the field of air filtration.
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