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Robust Photothermal Icephobic Surface with Mechanical Durability of Multi-Bioinspired Structures
Advanced Materials ( IF 27.4 ) Pub Date : 2023-08-05 , DOI: 10.1002/adma.202305322 Maolin Zhou 1 , Lei Zhang 1 , Lieshuang Zhong 1 , Mingshuo Chen 1 , Lingmei Zhu 1 , Tiance Zhang 1 , Xuefeng Han 1 , Yongping Hou 1 , Yongmei Zheng 1
Advanced Materials ( IF 27.4 ) Pub Date : 2023-08-05 , DOI: 10.1002/adma.202305322 Maolin Zhou 1 , Lei Zhang 1 , Lieshuang Zhong 1 , Mingshuo Chen 1 , Lingmei Zhu 1 , Tiance Zhang 1 , Xuefeng Han 1 , Yongping Hou 1 , Yongmei Zheng 1
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Photothermal superhydrophobic surfaces are potential to become ideal anti-/deicing surfaces due to their rapid water removal, icing delay, and photothermal deicing performance. Here, a robust photothermal icephobic surface with mechanical durability is shown that is integrated with a microspine array inspired by honeycomb and cactus thorn (i.e., MAHC), which is developed by a laser-layered microfabrication strategy. The maximum stress on the microspine of the MAHC is reduced by ≈2/3, due to the protection of the bionic honeycomb structure. Even after 200 linear abrasions by a steel blade, the MAHC remains superior water repellency with a water contact angle of 150.7° and roll-off angles of 10.3°, stable icing delay time (578.2 s), and rapidly photothermal deicing capabilities (401 s). As the MAHC is fabricated on a curvature surface such as a copper alloy transmission line for an overhead high-speed rail, a stable photothermal anti-/deicing in a low-temperature environment still can be achieved effectively. The freezing rain covering the functional transmission line completely slides off within 758 s under one sun illumination. This studying offers insight into the design of novel materials with stable anti-icing/icephobic structures, which would be extended into some applied realms, for example, transportation fields or power systems in cold or low-temperature climates.
中文翻译：
具有多重仿生结构机械耐久性的鲁棒光热疏冰表面
光热超疏水表面由于其快速除冰、结冰延迟和光热除冰性能而有可能成为理想的防/除冰表面。在这里，展示了具有机械耐久性的坚固光热疏冰表面，该表面与受蜂窝和仙人掌刺（即 MAHC）启发的微脊柱阵列集成，该微脊柱阵列是通过激光分层微加工策略开发的。由于仿生蜂窝结构的保护，MAHC微脊柱上的最大应力减少了约2/3。即使在钢刀片200次线性磨损后，MAHC仍保持优异的拒水性，水接触角为150.7°，滚降角为10.3°，稳定的结冰延迟时间（578.2 s）和快速光热除冰能力（401 s） ）。由于MAHC是在曲率表面上制作的，例如架空高铁的铜合金传输线，因此在低温环境下仍然可以有效地实现稳定的光热防/除冰。覆盖功能输电线路的冻雨在一次太阳照射下758秒内完全滑落。这项研究为具有稳定防冰/防冰结构的新型材料的设计提供了见解，这些材料将扩展到一些应用领域，例如寒冷或低温气候下的交通领域或电力系统。
更新日期：2023-08-05
中文翻译：
具有多重仿生结构机械耐久性的鲁棒光热疏冰表面
光热超疏水表面由于其快速除冰、结冰延迟和光热除冰性能而有可能成为理想的防/除冰表面。在这里，展示了具有机械耐久性的坚固光热疏冰表面，该表面与受蜂窝和仙人掌刺（即 MAHC）启发的微脊柱阵列集成，该微脊柱阵列是通过激光分层微加工策略开发的。由于仿生蜂窝结构的保护，MAHC微脊柱上的最大应力减少了约2/3。即使在钢刀片200次线性磨损后，MAHC仍保持优异的拒水性，水接触角为150.7°，滚降角为10.3°，稳定的结冰延迟时间（578.2 s）和快速光热除冰能力（401 s） ）。由于MAHC是在曲率表面上制作的，例如架空高铁的铜合金传输线，因此在低温环境下仍然可以有效地实现稳定的光热防/除冰。覆盖功能输电线路的冻雨在一次太阳照射下758秒内完全滑落。这项研究为具有稳定防冰/防冰结构的新型材料的设计提供了见解，这些材料将扩展到一些应用领域，例如寒冷或低温气候下的交通领域或电力系统。
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