Facile Electrospun Polyacrylonitrile/poly(acrylic acid) Nanofibrous Membranes for High Efficiency Particulate Air Filtration
Facile Electrospun Polyacrylonitrile/poly(acrylic acid) Nanofibrous Membranes for High Efficiency Particulate Air Filtration
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DOI：
10.1007/s12221-015-0629-1
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发表时间：
2015-03-30
影响因子：
2.5
通讯作者：
Kim, Hak-Yong
中科院分区：
文献类型：
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作者：
Liu, Yanan;Park, Mira;Kim, Hak-Yong
采用静电纺丝法制备了聚丙烯腈/聚丙烯酸（PAN/PAA，质量比为3/7，4/6，5/5，6/4，7/3和10/0）纳米纤维作为过滤介质。共混纳米纤维毡的拉伸强度随着PAA含量的增加而增加，从3.8 MPa增加到6.6 MPa，高于原始PAN。还从氮气物理吸附等温线研究了纳米纤维垫的介孔效应，平均孔径在17-44 nm的范围内。评价了纳米纤维垫的空气过滤效率和压降。PAN/PAA（6/4）NF在5.3 cm/s气流速度下对300-500 nm氯化钠气溶胶颗粒显示出高过滤效率（99.994%）和最低压降（160 Pa），这表明该材料适合作为高性能过滤器的有希望的候选物。
Polyacrylonitrile/poly(acrylic acid) (PAN/PAA with weight radios of 3/7, 4/6, 5/5, 6/4, 7/3 and 10/0) nanofibers (NFs) were prepared as filter medium by electrospinning. The tensile strength of blended nanofibrous mats increased as increasing PAA content, from 3.8 to 6.6 MPa, higher than pristine PAN. The mesoporous effect of nanofibrous mats was also investigated from the nitrogen physisorption isotherms, average pore size in the range of 17-44 nm. Air filtration efficiency and pressure drop of nanofibrous mats were evaluated. PAN/PAA (6/4) NFs showed high filtration efficiency (99.994 %) with lowest pressure drop (160 Pa) for 300-500 nm sodium chloride aerosol particles at a 5.3 cm/s airflow velocity, which suggested this material was appropriate as a promising candidate for high performance filters.