Abstract
Long-term anti-icing technology is one of the important measures to solve the industrial development in low temperature environment, and is still one of the important challenges at present although it has been vigorously developed. Here, we design a fluorine-modified CNT@epoxy electrothermal coating by cooperating passive anti-icing of superhydrophobic surfaces with active deicing of electrothermal property. The coating exhibits excellent superhydrophobicity, low resistivity, robust durability, higher electrothermal response rate, freezing resistance, and rapid electrothermal thawing ability. Excitedly, our coating can delay the freezing time to 8 h by 15 V pulse voltage with frequency of 10 s/100 s under − 20 °C, which confirms the effectiveness by synergizing active de-icing and passive anti-icing at low pulse voltage. This work promises new solutions for surface applications related to long-term anti-icing, expecting to serve in cryogenic system and equipment, power transmission system, high-altitude vehicle, and so on.
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