Zhang Shuo, Zhang Qian, Huang Xiaowei, Ming Jinfa
Industrial Research Institute of Nonwovens & Technical Textiles, College of Textile & Clothing, Qingdao University, Qingdao, 266071, People's Republic of China.
Women and Children's Hospital, Qingdao University, Qingdao, 266034, People's Republic of China.
Int J Biol Macromol. 2025 Sep;322(Pt 1):146680. doi: 10.1016/j.ijbiomac.2025.146680. Epub 2025 Aug 7.
Photothermal materials have emerged as promising candidates for anti-icing applications. Lightweight materials integrating photothermal and superhydrophobic strategies for anti-icing/deicing under extreme conditions remain underexplored. Here, we propose an three-dimensional (3D) network photothermal superhydrophobic aerogels fabricated via VTMS crosslinking and freeze-drying, which is found to drastically improve anti-icing/deicing performance and durability. CFe nanocomposites exhibit magnetic and photothermal properties. CFe-PLA aerogels own low density (22-32 mg/cm), superhydrophobicity (146.94°-152.25°), and excellent photothermal effect. The results show the surface temperature of CFe-PLA aerogels increases with the increase of the solar light density, and the maximum temperature can reach 87.53 °C. Under a solar light density, the sun lamp is switched on and off three times in a row, and the maximum temperature of CFe-PLA aerogels could reach and maintain at about 68 °C, presenting excellent photothermal stability. Moreover, The deicing time of CFe-PLA aerogel is shortened from 522 s to 207 s, saving more than 60 % of the deicing time. At -70 °C, the freezing time of 10 μL water droplets on the aerogel surface with CFe is 302.5 s (CFe-PLA), 173.3 s (CFe-PLA), 151.9 s (CFe-PLA), and 107.9 s (CFe-PLA). This work provides a novel and effective method to prepare advanced photothermal aerogels for all weather ourdoor anti-icing applications.
光热材料已成为防冰应用的有前途的候选材料。在极端条件下集成光热和超疏水策略用于防冰/除冰的轻质材料仍未得到充分探索。在此，我们提出了一种通过VTMS交联和冷冻干燥制备的三维（3D）网络光热超疏水气凝胶，发现其能显著提高防冰/除冰性能和耐久性。CFe纳米复合材料具有磁性和光热性能。CFe-PLA气凝胶具有低密度（22-32mg/cm）、超疏水性（146.94°-152.25°）和优异的光热效应。结果表明，CFe-PLA气凝胶的表面温度随太阳光密度的增加而升高，最高温度可达87.53°C。在太阳光密度下，太阳灯连续开关三次，CFe-PLA气凝胶的最高温度可达并维持在约68°C，呈现出优异的光热稳定性。此外，CFe-PLA气凝胶的除冰时间从522秒缩短至207秒，节省了超过60%的除冰时间。在-70°C时，CFe-PLA气凝胶表面10μL水滴的冻结时间分别为302.5秒（CFe-PLA）、173.3秒（CFe-PLA）、151.9秒（CFe-PLA）和107.9秒（CFe-PLA）。这项工作为制备用于全天候户外防冰应用的先进光热气凝胶提供了一种新颖有效的方法。
