Wettability of the Superhydrophobic Surface Under Condensation State Condition

Chem. J. Chinese Universities

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Wettability of the Superhydrophobic Surface Under Condensation State Condition

CHEN Xiao-Ling¹*, LÜ Tian¹, CHEN Xiang²

1. Key Laboratory of Mechanical & Power Engineering of Ministry of Education,
2. Institute of Micro/Nano Science and Technology, Shanghai Jiaotong University, Shanghai 200030, China

Received:2007-09-27 Revised:1900-01-01 Online:2008-05-10 Published:2008-05-10
Contact: CHEN Xiao-Ling

Abstract

Abstract: The wettability of superhydrophobic surface has become the hot point in many fields. The wettability of the superhydrophobic surface under condensation state condition is studied by measurement of the contact angle and observation of polarizing light microscopy. It is found that the water vapor could condense in the small gap of the rough surface and the superhydrophobicity of the rough surface is destroyed. And the wettability of the superhydrophobic surface showed the heterogeneity, even some part became hydrophilic. According to the analysis, a calculation model is proposed for the condensing droplets on superhydrophobic surface and it was validated by the measurements of contact angle.

Key words: Superhydrophobic surface, Condensation, Wettability

CLC Number:

O647.5

TrendMD:

CHEN Xiao-Ling¹*, LÜ Tian¹, CHEN Xiang². Wettability of the Superhydrophobic Surface Under Condensation State Condition[J]. Chem. J. Chinese Universities, doi: .

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Wettability of the Superhydrophobic Surface Under Condensation State Condition

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