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Tribological performance of fluoroalkylsilane modification of sol–gel TiO2 coating

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Abstract

This paper explores the possibility of making coatings with super friction-reducing and wear protection properties by using both sol–gel and self-assembling techniques. The thin film of TiO2 was firstly prepared on glass substrates via a sol–gel method, followed by sintering at 480°C. The self-assembled monolayer of Fluoroalkylsilane (FAS) were then prepared on TiO2 thin film to obtain TiO2–FAS dual-layer film. The contact angle measurement and X-ray photoelectron spectroscopy were used to determine the wetting behavior and chemical structure of films, respectively. The friction behavior of films sliding against a steel ball was examined on a macro friction and wear tester. It is shown that FAS is strongly adsorbed on sol–gel derived TiO2 thin film, making it strongly hydrophobic. Good friction-reducing and wear protection behavior is observed for the glass substrate after duplex surface-modification with sol–gel TiO2 and top layer of FAS.

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Acknowledgments

Financial support by Shandong Provincial Natural Science Foundation, China (Y2008F05) and Applied and Basic Research Foundation of Qingdao City (09-1-3-35-jch) are gratefully acknowledged.

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Authors and Affiliations

  1. School of Mechanical Engineering, Qingdao Technological University, 266033, Qingdao, China

    Yong Wan, Wenliu Chao & Yifang Liu

  2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, 730000, Lanzhou, China

    Junyan Zhang

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  1. Yong Wan
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  2. Wenliu Chao
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  3. Yifang Liu
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  4. Junyan Zhang
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Correspondence to Yong Wan.

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Wan, Y., Chao, W., Liu, Y. et al. Tribological performance of fluoroalkylsilane modification of sol–gel TiO2 coating. J Sol-Gel Sci Technol 57, 193–197 (2011). https://doi.org/10.1007/s10971-010-2341-3

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  • DOI: https://doi.org/10.1007/s10971-010-2341-3

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