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<p>With the growing exploitation of marine resources, the deployment of underwater equipment is increasing substantially. As a result, reducing underwater friction and enhancing vehicle speed and operational efficiency have become crucial research areas. This study introduced a deformable superhydrophobic composite surface material consisting of modified nanoscale titanium dioxide (TiO<sub>2</sub>) particles and polydimethylsiloxane (PDMS) by spraying to form a rough surface, which supported the formation of a stable superhydrophobic air film and exhibited excellent drag reduction properties. This surface attained a maximum drag reduction rate of 47.33%. Additionally, Moreover, the superhydrophobic surface (SHS) demonstrated exceptional stability in underwater environments, along with remarkable anti-icing and anti-fouling properties. These results highlight the significant potential of this technology for underwater drag reduction applications.</p>

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A controllably deformable PDMS/TiO2 superhydrophobic drag-reduction coating with anti-fouling and anti-icing performance

  • 期刊论文

  • 发表日期：

    2025年5月2日

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  • Xinyan Ma,
  • Yajing Duan,
  • Changtai Gong,
  • Hao Li,
  • Haodong Duan,
  • Zhongwei Wang

摘要

With the growing exploitation of marine resources, the deployment of underwater equipment is increasing substantially. As a result, reducing underwater friction and enhancing vehicle speed and operational efficiency have become crucial research areas. This study introduced a deformable superhydrophobic composite surface material consisting of modified nanoscale titanium dioxide (TiO2) particles and polydimethylsiloxane (PDMS) by spraying to form a rough surface, which supported the formation of a stable superhydrophobic air film and exhibited excellent drag reduction properties. This surface attained a maximum drag reduction rate of 47.33%. Additionally, Moreover, the superhydrophobic surface (SHS) demonstrated exceptional stability in underwater environments, along with remarkable anti-icing and anti-fouling properties. These results highlight the significant potential of this technology for underwater drag reduction applications.