Robust photo/electrothermal synergistically all-weather anti/de-icing superhydrophobic composite coating based on modified graphene

IF 5.4 2区化学 Q2 CHEMISTRY, PHYSICAL Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2025-03-26 DOI:10.1016/j.colsurfa.2025.136699

Yang Xu , Fei Wang , Yuliang Zhang , Ting Shu , Wenchao Huang , Xinhao Yan , Yanhua Lei , Shifei Liu , Xiaobo Chen

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Abstract

Anti-icing/de-icing coatings on equipment surfaces are becoming an important protective measure against frost formation and buildup, especially when they are used in very harsh environments. Herein, perfluorodecyltriethoxysilane (FAS) has been grafted onto the surface of graphene (GPE) via hydrolysis in an alkaline condition. The FAS modified graphene (F-GPE) is hydrophobic and conductive. A photothermal and electrothermal superhydrophobic coating is obtained by mixing F-GPE into epoxy resin as a filler for anti/de-icing in cold condition. The coating has a fast electrothermal response speed and rapidly changes the surface temperature of the coating covered with ice and snow from −20 °C to 3.7 °C within 30 s under the safe voltage of 10–15 V. Even under frost conditions, the coating with ice layers could be restored through the synergy of light and electric-to-heat conversion. The ice layer is initially melt in about 90 s, and the ice-waterdrop mixture can be easily removed on the superhydrophobic F-GPE coating. In addition, the coating shows superior mechanical strength. These remarkable properties make it valuable for application and more possibilities in the all-weather anti-icing and de-icing field.

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基于改性石墨烯的坚固的光/电热协同全天候防/除冰超疏水复合涂层

设备表面的防冰/除冰涂层已成为防止霜冻形成和积聚的重要保护措施，特别是在非常恶劣的环境中使用时。本研究将全氟癸基三乙氧基硅烷（FAS）在碱性条件下水解接枝到石墨烯（GPE）表面。FAS修饰的石墨烯（F-GPE）具有疏水性和导电性。将F-GPE掺入环氧树脂中，制备光热/电热超疏水涂层。涂层具有较快的电热响应速度，在10-15 V的安全电压下，能在30 s内将冰雪覆盖涂层的表面温度从−20℃迅速变化到3.7℃。即使在霜冻条件下，也可以通过光和电-热转换的协同作用来恢复具有冰层的涂层。冰层在90 s左右开始融化，并且冰-水滴混合物可以很容易地在超疏水性F-GPE涂层上去除。此外，涂层表现出优异的机械强度。这些显著的性能使其在全天候防冰除冰领域具有很大的应用价值和更多的可能性。

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来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.