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Electrospun Teflon AF fibers for superhydrophobic membranes

Published online by Cambridge University Press:  31 January 2011

Raymond Scheffler ,
Nelson S. Bell  and
Wolfgang Sigmund
Raymond Scheffler
Affiliation:
University of Florida, Department of Materials Science and Engineering, Gainesville, Florida 32611
Nelson S. Bell
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87123
Wolfgang Sigmund*
Affiliation:
University of Florida, Department of Materials Science and Engineering, Gainesville, Florida 32611
*
a)Address all correspondence to this author. e-mail: wsigm@mse.ufl.edu
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Abstract

Superhydrophobic membranes have the potential to protect devices from incidental exposure to water. This paper reports on the processing of Teflon AF fluoropolymers through electrospinning. Teflon AF is difficult to electrospin due to its low dielectric constant and the low dielectric constants of the liquids in which it is soluble. The two approaches that have been utilized to produce fibers are direct electrospinning in Novec engineering liquids and core-shell electrospinning. Both methods produced superhydrophobic membranes. Fibers with an average diameter of 290 nm and average water contact angle of 151° were obtained by core-shell electrospinning. One suggested application for electrospun superhydrophobic membranes is the lithium-air battery.

Keywords

FNanostructurePolymer
Type
Articles
Information
Journal of Materials Research , Volume 25 , Issue 8: Materials for Electrical Energy Storage , August 2010 , pp. 1595 - 1600
Copyright
Copyright © Materials Research Society 2010

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References

REFERENCES

1.Marmur, A.The lotus effect: Super-hydrophobicity and metastability. Langmuir 20, 3517 (2004)CrossRefGoogle Scholar
2.Patankar, N.A.On the modeling of hydrophobic contact angles on rough surfaces. Langmuir 19, 1249 (2003)Google Scholar
3.Patankar, N.A.Mimicking the lotus effect: Influence of double roughness structures and slender pillars. Langmuir 20, 8209 (2004)CrossRefGoogle ScholarPubMed
4.Jiang, L., Zhao, Y., Zhai, J.A lotus-leaf-like superhydrophobic surface: A porous microsphere/nanofiber composite film prepared by electrohydrodynamics. Angew. Chem. Int. Ed. 43, 4338 (2004)CrossRefGoogle ScholarPubMed
5.Han, D., Steckl, A.J.Superhydrophobic and oleophobic fibers by coaxial electrospinning. Langmuir 25, 9454 (2009)CrossRefGoogle ScholarPubMed
6.Ma, M., Hill, R.M., Rutledge, G.C.A review of recent results on superhydrophobic materials based on micro- and nanofibers. J. Adhes. Sci. Technol. 22, 1799 (2008)CrossRefGoogle Scholar
7.Ma, M., Hill, R.M., Lowery, J.L., Fridrikh, S.V., Rutledge, G.C.Electrospun poly(styrene-co-dimethylsiloxane) block copolymer fibers exhibiting microphase separation and superhydrophobicity. Langmuir 21, 5549 (2005)CrossRefGoogle Scholar
8.Ma, M., Mao, Y., Gupta, M., Gleason, K.K., Rutledge, G.C.Superhydrophobic fabrics produced by electrospinning and chemical vapor deposition. Macromolecules 38, 9742 (2005)CrossRefGoogle Scholar
9.Ma, M., Gupta, M., Li, Z., Zhai, L., Gleason, K.K., Cohen, R.E., Rubner, M.F., Rutledge, G.C.Decorated electrospun fibers exhibiting superhydrophobicity. Adv. Mater. 19, 255 (2007)CrossRefGoogle Scholar
10.Reneker, D.H., Yarin, A.L., Fong, H., Koombhongse, S.Bending instability of electrically charged liquid jets of polymer solutions in electrospinning. J. Appl. Phys. 87, 4531 (2000)CrossRefGoogle Scholar
11.Sun, Z., Zussman, E., Yarin, A.L., Wendorff, J.H., Greiner, A.Compound core-shell polymer nanofibers by co-electrospinning. Adv. Mater. 15, 1929 (2003)CrossRefGoogle Scholar
12.Product information DuPont Teflon AF Amorphous Fluoropolymers (Accessed 9 January 2010 http://www2.dupont.com/Teflon_Industrial/en_US/assets/downloads/h44587.pdf)Google Scholar
13.Electronics Markets Materials Division 3M Center St. Paul, MN (www.3M.com/novec)Google Scholar
14.3M Product Information Fluorinert Liquids for Electronics Manufacturing (Accessed 9 January 2010 http://multimedia.3m.com/mws/mediawebserver?66666UuZjcFSLXTt4xTyLx&_EVuQEcuZgVs6EVs6E666666–) Novec Engineered Fluid HFE-7100 for Heat Transfer (Accessed 9 January 2010 http://multimedia.3m.com/mws/mediawebserver?66666UuZjcFSLXTtlxTcm8TtEVuQEcuZgVs6EVs6E666666–)Google Scholar
15.Linden, D., Reddy, T.B.Handbook of Batteries 3rd ed (McGraw-Hill, New York 2002)Google Scholar
16.Kuboki, T., Okuyama, T., Takami, N.Lithium-air batteries using hydrophobic room temperature ionic liquid electrolyte. J. Power Sources 146, 766 (2005)CrossRefGoogle Scholar
17.Williford, R.E., Zhang, J-G.Air electrode design for sustained high-power operation of Li/air batteries. J. Power Sources 194, 1164 (2009)CrossRefGoogle Scholar
18.Beattie, S.D., Manolescu, D.M., Blair, S.L.High-capacity lithium-air cathodes. J. Electrochem. Soc. 156, A44 (2009)CrossRefGoogle Scholar
19.Srikar, R., Gambaryan-Roisman, T., Steffes, C., Stephan, P., Tropea, C., Yarin, A.L.Nanofiber coating of surfaces for intensification of drop or spray impact cooling. Int. J. Heat Mass Transfer 52, 5814 (2009)CrossRefGoogle Scholar