Multifunctional fluorine-free superhydrophobic coating with flame-retardant, anti-icing, anti-corrosion, and oil–water separation properties

IF 1.6 Q4 ENGINEERING, BIOMEDICAL Biosurface and Biotribology Pub Date : 2022-02-17 DOI:10.1049/bsb2.12034
Shuyi Li, Chuankun Xie, Wenliang Zhang, Dongsong Wei, Zaihang Zheng, Yan Liu
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引用次数: 1

Abstract

A fluorine-free and multifunctional superhydrophobic coating (r-MSC) was prepared by the one-step spraying method. The coating had superhydrophobic and low-adhesion properties with the water contact angle of 161.5° ± 1° and the sliding angle of 3.2° ± 0.5°. It could be prepared by spraying while maintaining superhydrophobic surface characteristics on any substrates. The coating owed outstanding mechanical durability and chemical stability. Moreover, the coating also possessed the ability of self-cleaning, anti-fouling, anti-icing, and flame retardant ability. Importantly, the presence of multifunctional coating endowed the substrate with both water-resistant and fireproof properties. Besides, it also showed excellent oil-water separation ability, which presented the oil-water separation efficiency of over 90% for different types of oils after 10 separation cycles. Furthermore, the coating could improve corrosion inhibition performance and the corrosion current density was reduced by two orders of magnitude from the polarization curve. The r-MSC had the advantages of simple preparation, fluorine-free, environmentally friendly and appropriate for large-area fabrication, which could be applied to various fields.

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具有阻燃、防冰、防腐和油水分离性能的多功能无氟超疏水涂层
采用一步喷涂法制备了一种无氟多功能超疏水涂层。涂层的水接触角为161.5°±1°,滑动角为3.2°±0.5°,具有超疏水性和低粘附性能。它可以通过喷涂制备,同时在任何基材上保持超疏水表面特性。该涂层具有优异的机械耐久性和化学稳定性。此外,该涂层还具有自洁、防污、防结冰和阻燃能力。重要的是,多功能涂层的存在赋予了基材防水和防火性能。此外,它还表现出优异的油水分离能力,经过10次分离循环,对不同类型的油水分离效率均在90%以上。镀层的缓蚀性能明显提高,腐蚀电流密度从极化曲线上看降低了2个数量级。该材料具有制备简单、无氟、环境友好、适合大面积制备等优点,可应用于各个领域。
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来源期刊
Biosurface and Biotribology
Biosurface and Biotribology Engineering-Mechanical Engineering
CiteScore
1.70
自引率
0.00%
发文量
27
审稿时长
11 weeks
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