Stable and Transparent Superhydrophobic Nanoparticle Films

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Ling, Xing Yi and Phang, In Yee and Vancso, G. Julius and Huskens, Jurriaan and Reinhoudt, David N. (2009) Stable and Transparent Superhydrophobic Nanoparticle Films. Langmuir, 25 (5). pp. 3260-3263. ISSN 0743-7463

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Abstract:A superhydrophobic surface with a static water contact angle (θw) > 150° was created by a simple “dip-coating” method of 60-nm SiO2 nanoparticles onto an amine-terminated (NH2) self-assembled monolayer (SAM) glass/silicon oxide substrate, followed by chemical vapor deposition of a fluorinated adsorbate. For comparison, a close-packed nanoparticle film, formed by convective assembly, gave θw ~120°. The stability of the superhydrophobic coating was enhanced by sintering of the nanoparticles in an O2 environment at high temperature (1100 °C). A sliding angle of <5° indicated the self-cleaning properties of the surface. The dip-coating method can be applied to glass substrates to prepare surfaces that are superhydrophobic and transparent.
Item Type:Article
Copyright:© 2009 American Chemical Society
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/72083
Official URL:http://dx.doi.org/10.1021/la8040715
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