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Chinese Journal of Lasers, Volume. 48, Issue 6, 0602201(2021)

Fractal Characteristics of Microstructures on a Superhydrophobic Silicone Rubber Surface Induced by a Nanosecond Laser

Lie Chen1, Guanqi Wen1, Fei Guo1, Tao Hu2, and Dun Liu1、*
Author Affiliations
  • 1School of Mechanical Engineering, Hubei University of Technology, Wuhan, Hubei 430068, China
  • 2School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, Hubei 430068, China
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    Schematic of nanosecond laser etching silicon rubber surface processing system. (a) Laser processing system; (b) laser scanning method

    Fig. 1. Schematic of nanosecond laser etching silicon rubber surface processing system. (a) Laser processing system; (b) laser scanning method

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    Contact angle and rolling-off angle on silicone rubber surface treated with different energy densities. (a) Contact angle; (b) rolling-off angle

    Fig. 2. Contact angle and rolling-off angle on silicone rubber surface treated with different energy densities. (a) Contact angle; (b) rolling-off angle

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    EDS spectra of silicone rubber surface after laser etching with different laser fluences

    Fig. 3. EDS spectra of silicone rubber surface after laser etching with different laser fluences

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    FTIR spectra of silicon rubber surface after laser etching with different laser fluences

    Fig. 4. FTIR spectra of silicon rubber surface after laser etching with different laser fluences

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    Microstructures on silicone rubber surfaces treated with different laser fluences. (a) 7.5 J/cm2; (b) 10 J/cm2; (c) 12.5 J/cm2; (d) 15 J/cm2

    Fig. 5. Microstructures on silicone rubber surfaces treated with different laser fluences. (a) 7.5 J/cm2; (b) 10 J/cm2; (c) 12.5 J/cm2; (d) 15 J/cm2

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    Surface roughness of silicone rubber treated with different laser fluences. (a) 5.0--20.0 J/cm2; (b) 7.5--10.0 J/cm2

    Fig. 6. Surface roughness of silicone rubber treated with different laser fluences. (a) 5.0--20.0 J/cm2; (b) 7.5--10.0 J/cm2

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    Fractal dimension of surface profile of silicone rubber treated with different laser fluences. (a) 5.0--20.0 J/cm2; (b) 7.5--10.0 J/cm2

    Fig. 7. Fractal dimension of surface profile of silicone rubber treated with different laser fluences. (a) 5.0--20.0 J/cm2; (b) 7.5--10.0 J/cm2

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    State models of water droplets on silicone rubber surface. (a) Composite structure of large and small particles; (b) micro-nano particles; (c) plate structure and micro-nano particles; (d) plate structure and composite small particle structure

    Fig. 8. State models of water droplets on silicone rubber surface. (a) Composite structure of large and small particles; (b) micro-nano particles; (c) plate structure and micro-nano particles; (d) plate structure and composite small particle structure

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    Lie Chen, Guanqi Wen, Fei Guo, Tao Hu, Dun Liu. Fractal Characteristics of Microstructures on a Superhydrophobic Silicone Rubber Surface Induced by a Nanosecond Laser[J]. Chinese Journal of Lasers, 2021, 48(6): 0602201

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    Paper Information

    Category: Laser Micromachining

    Received: Jan. 17, 2020

    Accepted: Aug. 31, 2020

    Published Online: Mar. 9, 2021

    The Author Email: Dun Liu (dun.liu@hbut.edu.cn)

    DOI:10.3788/CJL202148.0602201

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology