Preparation and Properties of PVDF/Fe3O4 Nanofibers with Magnetic and Electret Effects and their Application in Air Filtration,Macromolecular Materials and Engineering

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Preparation and Properties of PVDF/Fe3O4 Nanofibers with Magnetic and Electret Effects and their Application in Air Filtration
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-03-11 , DOI: 10.1002/mame.201900856
Fan Liu _{1,

2} , Mengying Li ₁ , Fang Li ₁ , Kai Weng ₁ , Kun Qi ₃ , Chunhui Liu ₁ , Qingqing Ni ₄ , Xuejiao Tao ₁ , Jing Zhang ₁ , Weili Shao ₁ , Jianxin He ₁

Affiliation

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 µm, 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.

中文翻译：

具有电磁和驻极体作用的PVDF / Fe3O4纳米纤维的制备，性能及其在空气过滤中的应用

电纺驻极体滤料由于对气流中的颗粒物具有优异的去除效果而被广泛研究。在这里，开发了一种兼具驻极体效应和磁效应的高效低压降纳米纤维（NF）膜，并将其与玻璃纤维网和聚酯（聚对苯二甲酸乙二酯）网复合以制备一种NF防雾的三明治结构窗纱。在磁性颗粒的协同作用下，当密度为2.06 gm ^-2时，对于0.3 µm以下的细颗粒，NF防雾窗滤网的过滤效率可达到99.95％，而过滤压降仅为58.5 Pa，良好的透光率和优异的断裂强度（6.32 MPa）。因此，聚偏二氟乙烯/ Fe ₃ O₄复合NF膜在空气过滤领域具有潜在的应用前景。

更新日期：2020-03-11

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