Chemically robust carbon nanotube-PTFE superhydrophobic thin films with enhanced ability of wear resistance

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 aqu...

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Published in:Progress in natural science 2017-06, Vol.27 (3), p.396-399
Main Authors: Wang, Kewei, Xiong, Pan, Xu, Xiuping, Wang, Kan, Li, YanLong, Zheng, Yufeng
Format: Article
Language:English
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Carbon nanotube
Superhydrophobicity
Thin film
Wear resistance
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cited_by cdi_FETCH-LOGICAL-c422t-17f99e8012d2b376bd9ea5e09512be01c4a495513a6af6cfeefefc010dc9923
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container_title Progress in natural science
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creator Wang, Kewei
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Wang, Kan
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Zheng, Yufeng
description 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.
doi_str_mv 10.1016/j.pnsc.2017.04.004
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subjects Carbon nanotube
Superhydrophobicity
Thin film
Wear resistance
title Chemically robust carbon nanotube-PTFE superhydrophobic thin films with enhanced ability of wear resistance
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