Total re-establishment of superhydrophobicity of vertically-aligned carbon nanotubes by Co2 laser treatment

SURFACE & COATINGS TECHNOLOGY

卷:204

Article; Proceedings Paper

Ramos, S. C.^1,2  Vasconcelos, G.³  Antunes, E. F.^1,4  Lobo, A. O.^1,4  Trava-Airoldi, V. J.¹  Corat, E. J.¹ 

[1] INPE, BR-12227010 Sao Jose Dos Campos, SP, Brazil

[2] UNEB, BR-46400000 Caetite, BA, Brazil

[3] IEAV, BR-12231970 Sao Jose Dos Campos, SP, Brazil

[4] ITA, BR-12228900 Sao Jose Dos Campos, SP, Brazil

关键词: Vertically-aligned multi-walled carbon nanotubes;    Superhydrophobic surfaces;    Microwave plasma CVD;    CO2 laser;   

DOI  :  10.1016/j.surfcoat.2010.02.065

来源: Elsevier

【 摘 要 】

Total restitution of original superhydrophobicity of vertically-aligned multi-walled carbon nanotubes (VACNT) was achieved by CO2 laser treatment. Superhydrophobic VACNT films obtained by microwave plasma chemical vapour deposition (MWCVD) were pre-treated with oxygen plasma to convert them in superhydrophilic films. Treatments with CO2 laser at different powers were carried out on the superhydrophilic films for controlling of wettability. Changing in both surface energy and roughness of the VACNT films, was evaluated by contact angle measurement and atomic force microscopy images, respectively. (C) 2010 Elsevier B.V. All rights reserved.

【 授权许可】

Free