Rational design and multi-step sprayed preparation of concentration gradient CNT@WPU electrothermal coatings for the highly efficient anti-/de-icing performance

IF 6.1 2区工程技术 Q2 ENERGY & FUELS Applied Thermal Engineering Pub Date : 2025-01-23 DOI:10.1016/j.applthermaleng.2025.125704

Xianghuang Zhou , Yizhou Shen , Zhen Wang , Jiawei Jiang , Senyun Liu , Weilan Liu , Yuebin Lin

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Abstract

Electrothermal anti-/de-icing technology is considered to be an effective means of solving the icing problem on the composite surface of multi-electric/pure-electric vehicle in the future. The electrothermal coating with carbon nanotube concentration gradient was fabricated by the multi-step spraying method, which obviously increased the rate of electric heating by inducing directional heat transfer. The coating temperature remained above 0 ℃ under various low-temperature incoming conditions, when the electric power density as low as 0.4 W/cm². Meanwhile, the concentration gradient coating’s excellent adhesion and electrothermal stability ensured its long service life. Moreover, the surface temperature of the coating on the airfoil model increased rapidly to over 50 ℃ within 180 s at an initial electrical power density of 1.2 W/cm², effectively preventing ice formation on the leading edge for 60 s under −15 °C, 30 m/s flow condition. Under the same conditions, 8.5 mm-thick ice on the leading edge could be swiftly removed within 22 s with initial electrical power density of 1.8 W/cm². This strategy of conductive packing gradient design will provide new insights for advanced electrothermal anti-/de-icing material manufacturing.

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来源期刊

Applied Thermal Engineering 工程技术-工程：机械

CiteScore

11.30

自引率

15.60%

发文量

1474

审稿时长

57 days

期刊介绍： Applied Thermal Engineering disseminates novel research related to the design, development and demonstration of components, devices, equipment, technologies and systems involving thermal processes for the production, storage, utilization and conservation of energy, with a focus on engineering application. The journal publishes high-quality and high-impact Original Research Articles, Review Articles, Short Communications and Letters to the Editor on cutting-edge innovations in research, and recent advances or issues of interest to the thermal engineering community.