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Superhydrophobic properties of nonaligned boron nitride nanotube films

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journal contribution
posted on 01.01.2010, 00:00 authored by Luhua LiLuhua Li, Ying (Ian) ChenYing (Ian) Chen
Superhydrophobicity is highly desirable for numerous applications. Here, we report that a semierect but nonaligned boron nitride nanotube (BNNT) film showed superhydrophobicity with contact angle above 170° and a small contact angle hysteresis. This superhydrophobicity was stable over a large range of drop sizes, and the measured critical transition pressure was about 10 kPa. However, the prostrate BNNT films only showed hydrophobicity. The drop retraction behavior during evaporation, the pressure effect on contact angle, the critical transition pressure, the drop impact behavior, and the self-cleaning efficiency between these two kinds of films were systematically investigated and compared.

History

Journal

Langmuir

Volume

26

Issue

7

Pagination

5135 - 5140

Publisher

American Chemical Society

Location

Washington, D.C.

ISSN

0743-7463

eISSN

1520-5827

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2009, American Chemical Society