稳健性(进化)
材料科学
砂纸
磨损(机械)
复合材料
纳米复合材料
搅拌器
纳米技术
化学
生物化学
基因
粘度
作者
Chaoyi Peng,Zhuyang Chen,Manish K. Tiwari
出处
期刊:Nature Materials
[Springer Nature]
日期:2018-03-26
卷期号:17 (4): 355-360
被引量:616
标识
DOI:10.1038/s41563-018-0044-2
摘要
Superhydrophobicity is a remarkable evolutionary adaption manifested by several natural surfaces. Artificial superhydrophobic coatings with good mechanical robustness, substrate adhesion and chemical robustness have been achieved separately. However, a simultaneous demonstration of these features along with resistance to liquid impalement via high-speed drop/jet impact is challenging. Here, we describe all-organic, flexible superhydrophobic nanocomposite coatings that demonstrate strong mechanical robustness under cyclic tape peels and Taber abrasion, sustain exposure to highly corrosive media, namely aqua regia and sodium hydroxide solutions, and can be applied to surfaces through scalable techniques such as spraying and brushing. In addition, the mechanical flexibility of our coatings enables impalement resistance to high-speed drops and turbulent jets at least up to ~35 m s-1 and a Weber number of ~43,000. With multifaceted robustness and scalability, these coatings should find potential usage in harsh chemical engineering as well as infrastructure, transport vehicles and communication equipment.
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