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Electrospun bilayer nanomembrane with hierarchical placement of bead-on-string and fibers for low resistance respiratory air filtration

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Title Electrospun bilayer nanomembrane with hierarchical placement of bead-on-string and fibers for low resistance respiratory air filtration
Not Available
 
Creator Not Available
V. Kadam
I .L . Kyratzisb
Y. B. Truongb
J. Schutzb
L. Wanga
R. Padhyea,
 
Subject Air filtration
Aerosols
Pressure drop
Packing density
Electrospinning
Bilayer nanomembrane
Quality factor
Respiratory filter
 
Description Not Available
High pressure drop (air resistance) and bulky structure are the main challenges to address for a respirator filter.
An electrospun nanofiber membrane (ENM) is an effective filter media which can be a solution to reduce the filter pressure drop and bulkiness. This paper investigated bilayer, beaded ENMs to prepare efficient lightweight
respiratory filter media with less pressure drop. The focus is on producing a continuous bead on string nanostructure at small basis weight levels (0.5–2gm−2 ). The filtration performance of the single and bilayer beaded ENMs was measured against particles of size 0.3–5 µm. The surface morphology of the ENMs was investigated using field emission scanning electron microscopy and capillary flow porometry. The thickness of ENM was measured by a contactless method using 3D laser scanning digital microscope. The presence of beads changed the thickness, packing density and pore characteristics of the ENMs consequently their filtration performance. Bilayer, beaded ENMs with specific stacking at 0.5 g m−2 showed better performance than the commercial P2 type respirator.
RMIT University, Australia
 
Date 2020-09-10T03:18:40Z
2020-09-10T03:18:40Z
2019-05-08
 
Type Research Paper
 
Identifier Kadam, V., Kyratzis, I. L., Truong, Y. B., Schutz, J., Wang, L., & Padhye, R. (2019). Electrospun bilayer nanomembrane with hierarchical placement of bead-on-string and fibers for low resistance respiratory air filtration. Separation and Purification Technology, 224, 247-254.
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http://krishi.icar.gov.in/jspui/handle/123456789/41103
 
Language English
 
Relation Not Available;
 
Publisher Elsevier