Superhydrophobic Properties of Nonaligned Boron Nitride Nanotube Films | Zendy

Lu Hua Li | Zendy; Ying Chen | Zendy

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Superhydrophobic Properties of Nonaligned Boron Nitride Nanotube Films

Author(s) -

Lu Hua Li,

Ying Chen

Publication year - 2009

Publication title -

langmuir

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.042

H-Index - 333

eISSN - 1520-5827

pISSN - 0743-7463

DOI - 10.1021/la903604w

Subject(s) - contact angle , boron nitride , materials science , hysteresis , drop (telecommunication) , nanotechnology , sessile drop technique , nanotube , composite material , carbon nanotube , telecommunications , physics , computer science , quantum mechanics

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 degrees 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.

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