Zhao Yingcheng, Tian Pei, Li Xinlin, Gai Di, Tong Wei
School of Astronautics, Harbin Institute of Technology, Harbin 150080, China.
Centre for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, China.
Materials (Basel). 2025 May 28;18(11):2540. doi: 10.3390/ma18112540.
Icing on power lines and wings can cause serious economic damage and safety hazards. While superhydrophobic materials show promise for anti-icing applications, their passive anti-icing mechanisms require external energy activation, highlighting the need for the development of active de-icing materials with energy-to-heat conversion capabilities. Here, we developed three photothermal superhydrophobic shape-memory polymers with anti-icing performance (PSSPs), with 3%, 5%, and 7% CNT doping ratios, through a two-step process: resin preparation and laser-processing modification. The results showed that all samples presented good superhydrophobic properties. In addition, the tested materials demonstrated good shape-memory performance (recovery rates were close to 100%). They also showed excellent de-icing performance. Owing to the simplicity of the fabrication process, the material is suitable for mass production. The synergistic interplay between superhydrophobicity and photothermal activation endows the material with dual-functional icephobic performance, demonstrating practical applicability in industrial cryogenic environments.
输电线路和机翼上结冰会造成严重的经济损失和安全隐患。虽然超疏水材料在防冰应用方面显示出前景，但其被动防冰机制需要外部能量激活，这凸显了开发具有能量到热转换能力的主动除冰材料的必要性。在此，我们通过两步法（树脂制备和激光加工改性）制备了三种具有防冰性能的光热超疏水形状记忆聚合物（PSSP），碳纳米管掺杂比例分别为3%、5%和7%。结果表明，所有样品均呈现出良好的超疏水性能。此外，测试材料表现出良好的形状记忆性能（回复率接近100%）。它们还显示出优异的除冰性能。由于制造工艺简单，该材料适合大规模生产。超疏水性与光热激活之间的协同作用赋予了材料双功能憎冰性能，证明了其在工业低温环境中的实际适用性。
