Zhao Zehui, Wang Yamei, Wang Zelinlan, Cui Xianxian, Liu Guang, Zhang Yi, Zhu Yantong, Chen Jichen, Sun Shize, Zhang Kaiteng, Liu Xiaolin, Chen Huawei
School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191, China.
Key Laboratory of Icing and Anti/De-icing, China Aerodynamics Research and Development Center, Mianyang, Sichuan, 621000, China.
Small. 2024 Aug;20(31):e2311435. doi: 10.1002/smll.202311435. Epub 2024 Mar 10.
All weather, high-efficiency, energy-saving anti-icing/de-icing materials are of great importance for solving the problem of ice accumulation on outdoor equipment surfaces. In this study, a composite material with energy storage, active electro-/photo-thermal de-icing and passive super-hydrophobic anti-icing properties is proposed. Fluorinated epoxy resin and MWCNTs/PTFE particles are used to prepare the top multifunctional anti-icing/de-icing layer, which exhibited super-hydrophobicity with water contact angle greater than 155° and conductivity higher than 69 S m. The super-hydrophobic durability of the top layer is verified through tape peeling and sandpaper abrasion tests. The surface can be heated by applying on voltage or light illumination, showing efficient electro-/photo-thermal and all-day anti-icing/de-icing performance. The oleogel material at the bottom layer is capable to absorb energy during heating process and release it during cooling process by phase transition, which greatly delayed the freezing time and saved energy. The icing test of single ice droplet, electro-/photo-thermal de-icing and defrosting tests also proved the high efficiency and energy saving of the anti-icing/de-icing strategy. This study provided a new way to manufacture multi-functional materials for practical anti-icing/de-icing applications.
全天候、高效、节能的防冰/除冰材料对于解决户外设备表面结冰问题至关重要。在本研究中，提出了一种具有储能、主动电热/光热除冰和被动超疏水防冰性能的复合材料。采用氟化环氧树脂和多壁碳纳米管/聚四氟乙烯颗粒制备顶部多功能防冰/除冰层，该层表现出超疏水性，水接触角大于155°，电导率高于69 S/m。通过胶带剥离和砂纸磨损试验验证了顶层的超疏水耐久性。通过施加电压或光照可以加热表面，显示出高效的电热/光热和全天候防冰/除冰性能。底层的油凝胶材料能够在加热过程中吸收能量，并在冷却过程中通过相变释放能量，这大大延迟了冻结时间并节省了能源。单冰滴结冰试验、电热/光热除冰和除霜试验也证明了防冰/除冰策略的高效性和节能性。本研究为制造用于实际防冰/除冰应用的多功能材料提供了一种新方法。
