Robust photothermal superhydrophobic coatings with dual-size micro/ nano structure enhance anti-/de-icing and chemical resistance properties
作者：Lei Zhang, Chunlei Gao, Lieshuang Zhong, Lingmei Zhu, Huan Chen, Yongping Hou, Yongmei Zheng
關(guān)鍵字：Anti-icing
論文來源：期刊
發(fā)表時間：2022年
We present a robustly durably corrosive superhydrophobic coating with photothermal effect (DCSCPE) for anti-icing/de-icing performance that can be designed by using as-synthetized Fe 3 O 4 composite nanoparticles (NPs), along with protective coat (polydimethylsiloxane) and bonding basecoat (epoxy). In this design, the Fe 3 O 4 nanoparticles (NPs) are optimized in dual-size: 200 /20 nm and weight ratio:1/2 to achieve both micro/nano-structures and superior photothermal conversion properties (up to 14.4 ? C/min) and light-to-heat conversion
efficiency (62.38%), which is superior to other DCSCPE coatings. As a result, the DCSCPE 1/2 takes on excellent superhydrophobicity under corrosion for 20 days by pH ~ 1–14 and efficient de-icing performance, i.e., the ice-covering is melted in short time of 790 s under sunlight illumination and the DCSCPE 1/2 surfaces show a high deicing rate (~1.96 kg m ?2 h ?1 ), which is benefited from synergy effect that is resulted from the excellent micro/
nanostructures and the high-efficiently photothermal ability of as-synthetized Fe 3 O 4 composite NPs. The stability on chemical and mechanical interface of micro/ nanostructures can be further demonstrated to greatly favor the robust anti-icing/de-icing performance for a long term. This studying is considerably significant to design the novel protective materials on anti-icing, anti-corrosion that can be extended into practical applications.