Temperature self-regulating electrothermal pseudo-slippery surface for anti-icing

Electro‐/Photo‐Thermal Promoted Anti‐Icing Materials: A New Strategy Combined with Passive Anti‐Icing and Active De‐Icing

“…[99] Copyright 2016, American Chemical Society; Panel (c) adapted with permission. [76] Copyright 2021, Elsevier.…”

“…The traditional thermal heating method is widely used and very efficient for active de-icing, [11,[68][69][70][71][72][73][74][75] while it requires excess energy consumption and has a potential risk of surface overheating in harsh and unpredictable environments. [76,77] Thus, the traditional thermal heating method is not an ideal approach for the practical anti-icing application. For specific anti-icing fields (i.e., aircrafts), however, the reliability, efficiency and safety are of the first importance factors for anti-icing/de-icing in the cold weather.…”

“…Recently, researchers have developed alternative approaches toward efficient and reliable de-icing by combining passive AIM (i.e., SHSs and lubricating surfaces) [79][80][81][82] and active electro-thermal de-icing technique (Table 2). [76,[83][84][85][86][87][88] Generally, SHSs possess excellent water repellency, while SHSs cannot completely prevent water from freezing for a longterm use as time elapses and temperature lowers sufficiently. In a humid environment, when the water vapor pressure reaches critically high, water droplets can slowly impale hierarchical structures of SHSs and fully wet the substrate (i.e., water droplets maintains in the Wenzel state), [101] thereby so-called "Wenzel ice" appearing among hierarchical structures of SHSs.…”

“…[104,105] Another alternative anti-icing strategy is to combine passive anti-icing lubricating surfaces with the electro-thermal heating method. [76,96,99,100] The goals of this anti-icing strategy are to significantly reduce the electric energy consumption and to reduce ice adhesion strength as low as possible, achieving reliable and efficient dynamic anti-icing/de-icing. For example, Liu et al found that ice adhesion strength (58 ± 7 kPa) of slippery liquid-infused porous electric heating coating (SEHC) is only 3% of that on the electric heating coating (EHC), and SEHC can remarkably shorten the de-icing process and thus reduce the electric heating energy consumption by up to 53% compared with smooth EHC (Figure 6a1-a4).…”

“…[99] Wang et al designed an electro-thermal pseudo-slippery anti-icing surface, and this surface can largely reduce the energy consumption by ≈30% compared with the normal electro-thermal coatings (i.e., at initial electric power density of 1.5 W cm -2 ). [76] Wang et al continued to improve the durability of electro-thermal pseudo-slippery anti-icing surface by introducing phase transition lubricant, and this anti-icing surface can decrease ice accretion by ≈40% after icing for 120 s at −40 ± 3 °C (Figure 6c). [76] Generally, the introduction of the electro-thermal method not only facilitates Figure 6.…”