| Chemically robust carbon nanotube – PTFE superhydrophobic thin films
with enhanced ability of wear resistance |
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| 作者姓名： | Kewei Wang Pan Xiong Xiuping Xu Kan Wang YanLong Li Yufeng Zheng |
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| 摘 要： | A chemically robust superhydrophobic nanocomposite thin film with enhanced wear resistance is prepared from a composite comprising polytetrafluoroethylene(PTFE) and carbon nanotubes.The superhydrophobic thin films with hierarchical structure are fabricated by spraying an environmentally friendly aqueous dispersion containing carbon nanotubes and PTFE resin on silicon wafer.Thin films with a contact angle of 154.1°± 2° and a sliding angle less than 2° remain superhydrophobic after abrading over 500 times under a pressure of 50 g/cm~2.The thin film is also extremely stable even under much stress conditions.To further the understanding of the enhancement of wear resistance,we investigated the formation of microsized structure and their effects.The growth of microbumps is caused by attracting solution droplet to the hydrophilic islands on hydrophobic surface.
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| 收稿时间： | 24 October 2016 |
Chemically robust carbon nanotube-PTFE superhydrophobic thin films with enhanced ability of wear resistance |
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| Kewei Wang,Pan Xiong,Xiuping Xu,Kan Wang,YanLong Li,Yufeng Zheng.Chemically robust carbon nanotube-PTFE superhydrophobic thin films with enhanced ability of wear resistance[J].Progress in Natural Science,2017,27(3):396-399. |
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| Authors: | Kewei Wang Pan Xiong Xiuping Xu Kan Wang YanLong Li and Yufeng Zheng |
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| Institution: | State Nuclear Electric Power Planning Design & Research Institute, 6 Dijin St., Haidian District, Beijing 100095, China,College of Engineering, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China,State Nuclear Electric Power Planning Design & Research Institute, 6 Dijin St., Haidian District, Beijing 100095, China,State Nuclear Electric Power Planning Design & Research Institute, 6 Dijin St., Haidian District, Beijing 100095, China,State Nuclear Electric Power Planning Design & Research Institute, 6 Dijin St., Haidian District, Beijing 100095, China and College of Engineering, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China |
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| Abstract: | A chemically robust superhydrophobic nanocomposite thin film with enhanced wear resistance is prepared from
a composite comprising polytetrafluoroethylene (PTFE) and carbon nanotubes. The superhydrophobic thin
films with hierarchical structure are fabricated by spraying an environmentally friendly aqueous dispersion
containing carbon nanotubes and PTFE resin on silicon wafer. Thin films with a contact angle of 154.1° ± 2° and
a sliding angle less than 2° remain superhydrophobic after abrading over 500 times under a pressure of 50 g/
cm2. The thin film is also extremely stable even under much stress conditions. To further the understanding of
the enhancement of wear resistance, we investigated the formation of microsized structure and their effects. The
growth of microbumps is caused by attracting solution droplet to the hydrophilic islands on hydrophobic
surface. |
| |
| Keywords: | Superhydrophobicity
Thin film
Carbon nanotube
Wear resistance |
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