An Underwater Stable Superhydrophobic Surface for Robust Ultra-long-lasting Biofouling Resistance
An Underwater Stable Superhydrophobic Surface for Robust Ultra-long-lasting Biofouling Resistance
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DOI：
10.1016/j.cej.2023.142091
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发表时间：
2023-02
影响因子：
15.1
通讯作者：
Xinghua Wu;M. Xiao;Junting Zhang;Guohuang Tan;Yutong Pan;Y. Lai;Zhong Chen
中科院分区：
文献类型：
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作者：
Xinghua Wu;M. Xiao;Junting Zhang;Guohuang Tan;Yutong Pan;Y. Lai;Zhong Chen
在海洋工程和海洋工程建设中，迫切需要一种对水和微生物表现出非常低的亲和力的水下稳定的超疏水表面。在这项研究中，我们展示了一种水下稳定的超疏水表面，具有耐压性，化学稳定性，生物相容性和抗生物污染性。在13.72 kPa的水压下，该表面表现出超疏水性长达27天。为了检查表面的抗生物污染特性，将所制备的样品浸没在天然湖中50天。表面可以承受超过35天的水冲洗和生物攻击。表面的机械稳定性通过砂纸刮擦试验来评价。12 m的磨损长度不会降低表面的水接触角，这比基于蜡烛烟灰网络的现有技术的涂层优越上级。稳定、持久的水下超疏水表面在海洋应用中具有重要意义。
An underwater stable superhydrophobic surface that displays a very low affinity to water and microorganisms is urgently required in marine engineering and offshore constructions. In this study, we demonstrated an underwater stable superhydrophobic surface with pressure resistance, chemical stability, biocompatibility, and biofouling resistance. The surface demonstrated superhydrophobicity under a water pressure of 13.72 kPa for up to 27 days. To examine the anti-biofouling property of the surface, the as-prepared samples were submerged in a natural lake for 50 days. The surface could withstand water flush and biological attacks for more than 35 days. The mechanical stability of the surface was evaluated by a sandpaper scratching test. An abrasion length of 12 m would not decrease the water contact angle of the surface, which is superior over the state-of-the-art coatings based on candle soot networks. The stable long-lasting underwater superhydrophobic surface is of great importance to marine applications.