Investigation of Microstructures and Air Permeability of Aerogel-Coated Textile Fabric Materials
Affiliation:
1. School of Polymer Science and Polymer Engineering, University of Akron , Akron , OH , USA
Abstract
Abstract
This study focuses on fabrication of aerogel-coated macroporous polyester fabrics for the purposes of filtration of nanometric airborne particles and potential application in facemasks. Syndiotactic polystyrene (sPS) and polyimide (PI) gels that provide respectively majority macropores (diameter > 50 nm) and mesopores (diameter 2 to 50 nm) are coated onto woven polyester fabrics via a dip coating process. The resultant materials are supercritically dried to obtain aerogelcoated fabrics. The results show that sPS is more suitable for the dip coating process. However, evaporation of the solvent during handling of gel-coated fabrics leads to closure of the surface pores that are later recovered via solvent annealing. The resultant aerogel-coated fabrics offer high air permeability (∼10–10 m2) and high filtration efficiency (> 99.95%) of airborne sodium chloride test particles of size 25 to 150 nm.
Publisher
Walter de Gruyter GmbH
Subject
Materials Chemistry,Industrial and Manufacturing Engineering,Polymers and Plastics,General Chemical Engineering
Reference23 articles.
1. Alexander, D. D., EP 0507217 (A1) (1992) 2. Daniel, C., Alfano, D., Venditto, V., Cardea, S., Reverchon, E., Larobina, D., Mensitieri, G. and Guerra, G., “Aerogels with a Microporous Crystalline Host Phase", Adv. Mater., 17, 1515–1518 (2005), DOI:10.1002/adma.200401762 3. George, N. A., Sutsko, M. G. and McKenna, D. B., U. S. Patent 5507847 (1996) 4. Guise, M. T., Hosticka, B., Earp, B. C. and Norris, P. M., “An Experimental Investigation of Aerosol Collection Utilizing Packed Beds of Silica Aerogel Microspheres", J. Non-Cryst. Solids, 285, 317 – 322 (2001), DOI:10.1016/S0022-3093(01)00473-2 5. Hrubesh, L. W., Poco, J. F., “Thin Aerogel Films for Optical, Thermal, Acoustic and Electronic Applications", J. Non-Cryst. Solids, 188, 46–53 (1995), DOI:10.1016/0022-3093(95)00028-3
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|