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Preparation of microstructure-controllable superhydrophobic polytetrafluoroethylene porous thin film by vacuum thermal-evaporation

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Abstract

The three-dimensional porous network polytetrafluoroethylene (PTFE) thin films were achieved by a vacuum technique through evaporating the pure PTFE powders. The surfaces of PTFE thin films showed various morphologies by adjusting the evaporation temperature and the corresponding contact angle ranging from 133° to 155°. Further analyses of surface chemical composition and morphology by FTIR and FE-SEM revealed that the origin of hydrophobicity for the PTFE thin films could be ascribed to the fluorine-containing groups and the surface morphologies, indicating that abundant -CF2 groups and network structures with appropriate pore sizes played a vital role in superhydrophobicity. By characterization of UV-Vis, the films also showed high transmittance and antireflection effect. The films prepared by this simple method have potential applications such as waterproof membrane and self-cleaning coating.

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Authors and Affiliations

  1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China

    Na Yi, Shanhu Bao, Huaijuan Zhou, Yunchuan Xin, Aibin Huang, Yining Ma, Rong Li & Ping Jin

  2. College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China

    Na Yi, Huaijuan Zhou, Yunchuan Xin, Aibin Huang & Yining Ma

  3. Materials Research Institute for Sustainable Development, National Institute of Advanced Industrial Science and Technology (AIST), Nagoya, 463-8560, Japan

    Ping Jin

Authors
  1. Na Yi
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  2. Shanhu Bao
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  3. Huaijuan Zhou
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  4. Yunchuan Xin
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  5. Aibin Huang
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  6. Yining Ma
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  7. Rong Li
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  8. Ping Jin
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Correspondence to Ping Jin.

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Yi, N., Bao, S., Zhou, H. et al. Preparation of microstructure-controllable superhydrophobic polytetrafluoroethylene porous thin film by vacuum thermal-evaporation. Front. Mater. Sci. 10, 320–327 (2016). https://doi.org/10.1007/s11706-016-0343-y

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  • DOI: https://doi.org/10.1007/s11706-016-0343-y

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