KJ Ceramics 31

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Detailed Program

Paper Number : NA-P08

Time Frame : 12:00~13:30

Presentation Date : Friday, 28, November

Session Name : Nano-particles & Nano-structured Materials

Session Chair 1# : -

Session Chair 2# : -

Superhydrophobicity from Nano/Microstructure with Carbon Nanotubes on Silica spheres

Ahrong Jeong

Kyungnam University

Keywords: Superhydrophobicity, CNTs, Silica spheres, Nanotubes

Recently nanoscience and nanotechnology have been studied intensively, and many plants, insects, and animals in nature have been found to have nanostructures in their bodies. Among them, lotus leaves have a unique nanostructure and microstructure in combination and show superhydrophobicity and a self-cleaning function to wipe and clean impurities on their surfaces. Coating films with combined nanostructures and microstructures resembling those of lotus leaves may also have superhydrophobicity and self-cleaning functions; as a result, they could be used in various applications, such as in outfits, tents, building walls, or exterior surfaces of transportation vehicles like cars, ships, or airplanes.
In this study, the coating films based on silica balls were fabricated by the self-assembly of silica using sol-gel method. And then, we grew carbon nanotubes (CNTs) on coating films by plasma-enhanced chemical vapor deposition (PECVD) method. The coating films of nano/microstructure with CNTs on silica balls were prepared. It was found that carbon nanotubes of about 20 nm lengths were formed on silica balls of 500-600 nm size. The obtained contact angle of coating film was 147°, showing superhydrophobicity.

Acknowledgements :

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