Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (04): 15-20.doi: 10.13475/j.fzxb.20190706206

• Fiber Materials • Previous Articles     Next Articles

Structure and property of poly(vinyl alcohol-co-ethylene) nanofiber/polypropylene microfiber scaffold: a composite air filter with high filtration performance

WAN Yucai, LIU Ying, WANG Xu, YI Zhibing, LIU Ke(), WANG Dong   

  1. Hubei Key Laboratory of Advanced Textile Materials & Application, Wuhan Textile University, Wuhan, Hubei 430200, China
  • Received:2019-07-29 Revised:2020-01-13 Online:2020-04-15 Published:2020-04-27
  • Contact: LIU Ke E-mail:luecole@foxmail.com

Abstract:

To enhance the filtration performance of fiber based air filtration materials, poly(vinyl alcohol-co-ethylene) (PVA-co-PE) nanofibers were prepared using the melt-blend-phase-separation method. The composite filter was obtained by immersing the polypropylene (PP) needle-punched nonwoven fabric into the aqueous phase-based PVA-co-PE nanofibers and freeze-dring them. The composite filters were characterized by Fourier transform infrared spectrometer, scanning electron microscope, electrostatic voltmeter, capillary flow poromete and filter tester. After the filtration test of NaCl nano-aerosol with the size of 0.3 μm, a best filtration performance was obtained with quality factor of 0.091 9 Pa-1, filtration efficiency of 99.936% and pressure drop of 81 Pa when basic density of nanofiber is 9.34 g/m2. The tensile strength and modulus of this composite filter both show about 1.5 times higher than that of PP needle-punched nonwoven fabric.

Key words: poly(vinyl alcohol-co-ethylene), polypropylene, freeze drying, composite filter, air filtration

CLC Number: 

  • TS176.9

Fig.1

Schematic diagram for preparation of PVA-co-PE composite filter"

Fig.2

SEM images of different filters. (a)Surface of PP needle-punched nonwoven fabric; (b)Surface of PVA-co-PE composite filter; (c)Sectional of PVA-co-PE composite filter"

Fig.3

Infrared spectra of PP needle-punched nonwoven fabric and PVA-co-PE composite filter"

Fig.4

SEM images of PP needle-punched nonwoven fabric (a) and PVA-co-PE composite filter (b) after filtration"

Fig.5

Filtration performance of PVA-co-PE composite filter with different basis density. (a)Filtration efficiency;(b)Quality factor"

Tab.1

Filtration performance of PP needle-punched nonwoven fabric and PVA-co-PE composite filter under different airflow velocity"

空气流量/
(L·min-1)
过滤效率/%
PP针刺基材 PVA-co-PE复合过滤材料
32 54.296 99.936
50 39.672 99.925
85 27.990 99.916
100 20.519 99.892

Tab.2

Filtration performance of PP needle-punched nonwoven fabric and PVA-co-PE composite filter under different pretreatment conditions"

预处理方式 过滤效率/% 阻力压降/Pa 平均表面电位/V
PP针刺
基材
PVA-co-PE
复合过滤材料
PP针刺
基材
PVA-co-PE
复合过滤材料
PP针刺
基材
PVA-co-PE
复合过滤材料
未处理 89.145 99.936 17 81 484 3
高湿度处理 80.848 98.752 17 83 390 3
高温处理 61.334 98.728 15 82 301 1
低温处理 54.674 98.717 14 84 283 3

Fig.6

Tensile stress-strain curves of PP needle-punched filter and PVA-co-PE composite filter"

[1] LEE E S, FUNG C D, ZHU Y F. Evaluation of a high efficiency cabin air (HECA) filtration system for reducing particulate pollutants inside school buses[J]. Environment Science Technology, 2015,49:3358-3365.
[2] LELIEVELD J, EVANS J S, FNAIS M, et al. The contribution of outdoor air pollution sources to premature mortality on a global scale[J]. Nature, 2015,525:367-371.
doi: 10.1038/nature15371 pmid: 26381985
[3] LIU K, XIAO Z, MA P F, et al. Large scale poly(vinyl alcohol-co-ethylene)/TiO2 hybrid nanofibrous filters with efficient fine particle filtration and repetitive-use performance[J]. RSC Advances, 2015,5:87924-87931.
[4] ZHANG S, LIU H, YIN X, et al. Tailoring mechanically robust poly(m-phenylene isophthalamide) nanofiber/nets for ultrathin high-efficiency air filter[J]. Science Reports, 2017,7:40550-40557.
[5] THAKUR R, DAS D, DAS A. Electret air filters[J]. Separation and Purification Review, 2013,42:87-129.
[6] THAVASI V, SINGH G, RAMAKRISHNA S. Electrospun nanofibers in energy and environmental applications[J]. Energy Environment Science, 2008,1:205-221.
[7] HUNG C H, LEUNG W. Filtration of nano-aerosol using nanofiber filter under low peclet number and transitional flow regime[J]. Separation and Purification Technology, 2011,79:34-42.
[8] KIM S J, RAUT P, JANA S C, et al. Electrostatically active polymer hybrid aerogels for airborne nanoparticle filtration[J]. ASC Application Material Interfaces, 2017,9:6401-6410.
[9] WANG N, SI Y S, WANG N, et al. Multilevel structured polyacrylonitrile/silica nanofibrous membranes for high-performance air filtration[J]. Separation and Purification Technology, 2014,126:44-51.
[10] WANG N, WANG X F, DING B, et al. Tunable fabrication of three-dimensional polyamide-66 nano-fiber/nets for high efficiency fine particulate filtra-tion[J]. Journal of Materials Chemistry, 2012,22:1445-1452.
[11] YI Z B, CHENG P, CHEN J, et al. PVA-co-PE nanofibrous filter media with tailored three-dimensional structure for high performance and safe aerosol filtration via suspension-drying procedure[J]. Industrial & Engineering Chemistry Research, 2018,57:9269-9280.
[12] WANG J, MA L, LI L, et al. PES microsphere/fiber low resistance composite air filter membranes prepared by electrostatic spinning[J]. Acta Polymerica Sinica, 2014,11:1479-1485.
[13] LOVERA D, BILBAO C, SCHREIER P, et al. Charge storage of electrospun fiber mats of poly(phenylene ether)/polystyrene blends[J]. Polymer Enginnering and Science, 2009,49:2430-2439.
[14] KIM D W, KWON H, SEO J C. EVOH nanocomposite films with enhanced barrier properties under high humidity conditions[J]. Polymer Composites, 2014,35:644-654.
[15] SHELAT K J, DUTTA N K, CHOUDHURY N R. Interfacial interaction and morphology of EVOH and ionomer blends by scanning thermal microscopy and its correlation with barrier characteristics[J]. Langmuir, 2008,24:5464-5473.
doi: 10.1021/la703192g pmid: 18439030
[16] LI H W, WU C Y, TEPPER F, et al. Removal and retention of viral aerosols by a novel alumina nanofiber filter[J]. J Aerosol Science, 2009,40:65-71.
[17] LOVERA D, BILBAO C, SCHREIER P, et al. Charge storage of electrospun fiber mats of poly(phenylene ether)/polystyrene blends[J]. Polymer Engineering and Science, 2009,49:2430-2439.
[18] WANG N, YANG Y J, AL-DEYAB S S, et al. Ultra-light 3D nanofibre-nets binary structured nylon 6-polyacrylonitrile membranes for efficient filtration of fine particulate matter[J]. Journal of Materials Chemistry A, 2015,3:23946-23954.
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