Flexible carbon nanotube-polymer composite films with high conductivity and superhydrophobicity made by solution process.

Luo, Chan; Zuo, Xiaolei; Wang, Lei; Wang, Ergang; Song, Shiping; Wang, Jing; Wang, Jian; Fan, Chunhai et al. · Nano Lett · 2008

basic_science · Level V

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Abstract

CNT/Nafion nanocomposite film made by solution process exhibits high conductivity and superhydrophobicity. The highest water contact angle reaches 165.3 +/- 1.9 degrees. The wettability of the film can be controlled by simply varying the filtering rate and the content ratio of Nafion to CNT. We also develop a novel optical method to directly observe the air-solid-liquid interface for the first time. The extraordinary mechanical strength provided by the polymer helps the film retain its conductivity and superhydrobicity after 1000 bending cycles.