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首页> 外文期刊>New Journal of Chemistry >Facile spraying fabrication of highly flexible and mechanically robust superhydrophobic F-SiO2@PDMS coatings for self-cleaning and drag-reduction applications
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Facile spraying fabrication of highly flexible and mechanically robust superhydrophobic F-SiO2@PDMS coatings for self-cleaning and drag-reduction applications

机译：适用于自清洁和减压应用的高度柔性且机械鲁棒超疏水F-SiO2的高度柔性且机械鲁棒的超疏水F-SiO2的舒适喷涂制造

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摘要

Superhydrophobic coatings treated as surface functional materials are endowed with great application potential with respect to self-cleaning, drag-reduction, anti-icing, etc. In this study, we fabricated a highly flexible and mechanically robust superhydrophobic F-SiO2@PDMS coating through a facile layer-by-layer strategy. It was demonstrated that PDMS played a crucial role of binder for immobilizing the F-SiO2 nanoparticles and improving their adhesion to substrate materials. Meanwhile, the PDMS layer endowed the superhydrophobic coating with superior mechanical flexibility. Finally, the as-constructed superhydrophobic coating exhibited excellent water-repellency with a high water contact angle of 156.5 degrees and low sliding angle of only 2.0 degrees. Furthermore, the water adhesion strength on the superhydrophobic coating was only 2 mu N, indicating its ultralow viscous resistance to dynamic moving water droplets. The superhydrophobic F-SiO2@PDMS coating was independent of the substrates without any limitations, and they exhibited high flexibility and mechanical robustness with the elongation ratio reaching 83.3% under the conditions of high superhydrophobicity. Also, the superhydrophobic coating exhibited strong durability under the severe environments of corrosion and mechanical abrasion. Thus, the as-fabricated highly flexible and mechanically robust superhydrophobic F-SiO2@PDMS coating is considered to be an ideal candidate for applications in the fields of self-cleaning and drag-reduction.
机译：作为表面功能材料处理的超疏水涂层具有很大的应用潜力，相对于本研究的自清洁，减少，抗糖霜等。我们制造了一种高度柔性且机械稳健的超疏水F-SiO2 @ PDMS涂层容易层次的层策略。结果证明，PDMS发挥了粘合剂的重要作用，用于固定F-SiO2纳米颗粒并改善其与底物材料的粘附性。同时，PDMS层赋予超疏水涂层，具有优异的机械柔性。最后，制备的超疏水涂层具有优异的防水性，具有156.5度的高水位角，低滑动角仅为2.0度。此外，超疏水涂层上的水粘附强度仅为2μm，表示其对动态移动水滴的超低粘性抗性。超疏水的F-SiO 2 @ PDMS涂层无关的基板无任何限制，并且它们表现出高柔韧性和机械稳健性，伸长率在高超水量的条件下达到83.3％。此外，超疏水涂层在腐蚀和机械磨损的严重环境下表现出强大的耐用性。因此，以制造的高度柔性且机械稳健的超疏水F-SiO 2 @ PDMS涂层被认为是自清洁和减压领域中的应用的理想候选者。

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  • 来源
    《New Journal of Chemistry》 |2018年第22期|共9页
  • 作者

    Wu Yu; Shen Yizhou; Tao Jie; He Zhaoru; Xie Yuehan; Chen Haifeng; Jin Mingming; Hou Wenqing;

  • 作者单位

    Nanjing Univ Aeronaut &

    Astronaut Coll Mat Sci &

    Technol Nanjing 210016 Jiangsu Peoples R China;

    Nanjing Univ Aeronaut &

    Astronaut Coll Mat Sci &

    Technol Nanjing 210016 Jiangsu Peoples R China;

    Nanjing Univ Aeronaut &

    Astronaut Coll Mat Sci &

    Technol Nanjing 210016 Jiangsu Peoples R China;

    Nanjing Univ Aeronaut &

    Astronaut Coll Mat Sci &

    Technol Nanjing 210016 Jiangsu Peoples R China;

    Nanjing Univ Aeronaut &

    Astronaut Coll Mat Sci &

    Technol Nanjing 210016 Jiangsu Peoples R China;

    Huzhou Univ Qiuzhen Sch Dept Mat Chem 759 East 2nd Rd Huzhou 313000 Peoples R China;

    Nanjing Univ Aeronaut &

    Astronaut Coll Mat Sci &

    Technol Nanjing 210016 Jiangsu Peoples R China;

    Nanjing Univ Aeronaut &

    Astronaut Coll Mat Sci &

    Technol Nanjing 210016 Jiangsu Peoples R China;

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