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<p>The problem of surface icing affects the stable operation of equipment and facilities. In order to avoid icing problems, many measures have been tried. However, how to achieve efficient and lasting anti-icing and de-icing is still an urgent problem to be solved. Here, nanomaterials with photothermal response and modified microstructure particles were added to the polymer, and the photothermal response superhydrophobic (PRSH) coating with photothermal response characteristics was obtained by spraying. The droplet contact angle on the aluminum surface with PRSH coating can reach 161.2°, and the rolling angle is only 3.3°, showing excellent superhydrophobicity. Under near-infrared irradiation, the surface temperature of aluminum with PRSH coating can reach more than 130 °C. Even at a low temperature of − 20 °C, the surface temperature can still reach more than 80 °C. The surface can achieve passive anti-icing and active de-icing, the complete freezing time of the droplets can be delayed by more than 230%, and the frozen droplets can completely melt within 40&#xa0;s. Mechanical friction, chemical corrosion and other tests show that the PRSH coating has good durability and wide applicability.</p> Graphical abstract <p></p>

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Photothermally responsive superhydrophobic coating with excellent anti-icing and de-icing properties

  • 期刊论文

  • 发表日期：

    2026年4月18日

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  • Zhanbin Gu,
  • Shuwei Lv,
  • Xirui Sun,
  • Chunyu Mao,
  • Ying Zhai,
  • Meng Zhao,
  • Lipeng Zhang

摘要

The problem of surface icing affects the stable operation of equipment and facilities. In order to avoid icing problems, many measures have been tried. However, how to achieve efficient and lasting anti-icing and de-icing is still an urgent problem to be solved. Here, nanomaterials with photothermal response and modified microstructure particles were added to the polymer, and the photothermal response superhydrophobic (PRSH) coating with photothermal response characteristics was obtained by spraying. The droplet contact angle on the aluminum surface with PRSH coating can reach 161.2°, and the rolling angle is only 3.3°, showing excellent superhydrophobicity. Under near-infrared irradiation, the surface temperature of aluminum with PRSH coating can reach more than 130 °C. Even at a low temperature of − 20 °C, the surface temperature can still reach more than 80 °C. The surface can achieve passive anti-icing and active de-icing, the complete freezing time of the droplets can be delayed by more than 230%, and the frozen droplets can completely melt within 40 s. Mechanical friction, chemical corrosion and other tests show that the PRSH coating has good durability and wide applicability.

Graphical abstract