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Superhydrophobic and Photothermal PVDF/CNTs Durable Composite Coatings for Passive Anti-Icing/Active De-Icing
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2021-12-04 , DOI: 10.1002/admi.202101704 Guo Jiang 1 , Zhongyang Liu 1 , Jinhuan Hu 1
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2021-12-04 , DOI: 10.1002/admi.202101704 Guo Jiang 1 , Zhongyang Liu 1 , Jinhuan Hu 1
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The formation and accumulation of ice on the surfaces of external facilities and instrumentation can often cause irreparable damage and disaster. It is significant to develop an easily used technology with a passive anti-icing property to improve the de-icing/anti-icing efficiency. In this work, polyvinylidene fluoride (PVDF) and carbon nanotubes (CNTs) are combined to modulate a hierarchical coating structure. The coating surface is treated by 1H,1H,2H,2H-perfluorodecyltrimethoxysilane vapor with a lower surface energy. The resultant coating has excellent anti-icing properties with a water contact angle of 163°, icing delay time up to 584 s, and low ice adhesion of 13.2 kPa (easily removed by a natural wind), which is a result of the multilayered structure (provided by the micro-size PVDF particles and nano-size CNTs). The excellent anti-icing properties are kept even after mechanical abrasion and chemical attacking. The robustness of the coating is from the continuous network formed by PVDF melt in the heating process. The efficient photothermal conversion of CNTs can generate additional heat at low temperatures under the light illumination, which makes the coating achieve a photothermal de-icing performance. This multifunctional photothermal de-icing coating will have a wide range of applications in the outside environment.
中文翻译：
用于被动防冰/主动除冰的超疏水和光热 PVDF/CNT 耐用复合涂层
外部设施和仪器表面上的冰的形成和积累往往会造成无法弥补的损害和灾难。开发一种易于使用的具有被动防冰特性的技术，对提高除冰/防冰效率具有重要意义。在这项工作中，聚偏二氟乙烯 (PVDF) 和碳纳米管 (CNT) 结合起来调节分层涂层结构。涂层表面采用表面能较低的1H,1H,2H,2H-全氟癸基三甲氧基硅烷蒸气处理。所得涂层具有优异的防冰性能，水接触角为 163°，结冰延迟时间高达 584 秒，冰附着力低至 13.2 kPa（很容易被自然风去除），这是多层结构的结果（由微米尺寸的 PVDF 颗粒和纳米尺寸的 CNT 提供）。即使在机械磨损和化学侵蚀后，仍能保持出色的防冰性能。涂层的坚固性来自于 PVDF 熔体在加热过程中形成的连续网络。碳纳米管的高效光热转化可以在光照下在低温下产生额外的热量，使涂层达到光热除冰性能。这种多功能光热除冰涂层将在室外环境中有广泛的应用。使涂层达到光热除冰性能。这种多功能光热除冰涂层将在室外环境中有广泛的应用。使涂层达到光热除冰性能。这种多功能光热除冰涂层将在室外环境中有广泛的应用。
更新日期：2022-01-16
中文翻译：
用于被动防冰/主动除冰的超疏水和光热 PVDF/CNT 耐用复合涂层
外部设施和仪器表面上的冰的形成和积累往往会造成无法弥补的损害和灾难。开发一种易于使用的具有被动防冰特性的技术，对提高除冰/防冰效率具有重要意义。在这项工作中，聚偏二氟乙烯 (PVDF) 和碳纳米管 (CNT) 结合起来调节分层涂层结构。涂层表面采用表面能较低的1H,1H,2H,2H-全氟癸基三甲氧基硅烷蒸气处理。所得涂层具有优异的防冰性能，水接触角为 163°，结冰延迟时间高达 584 秒，冰附着力低至 13.2 kPa（很容易被自然风去除），这是多层结构的结果（由微米尺寸的 PVDF 颗粒和纳米尺寸的 CNT 提供）。即使在机械磨损和化学侵蚀后，仍能保持出色的防冰性能。涂层的坚固性来自于 PVDF 熔体在加热过程中形成的连续网络。碳纳米管的高效光热转化可以在光照下在低温下产生额外的热量，使涂层达到光热除冰性能。这种多功能光热除冰涂层将在室外环境中有广泛的应用。使涂层达到光热除冰性能。这种多功能光热除冰涂层将在室外环境中有广泛的应用。使涂层达到光热除冰性能。这种多功能光热除冰涂层将在室外环境中有广泛的应用。
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