Ultra-durable superhydrophobic cellular coatings

Wancheng Gu, Wanbo Li (), Yu Zhang, Yage Xia, Qiaoling Wang, Wei Wang, Ping Liu, Xinquan Yu, Hui He, Caihua Liang, Youxue Ban, Changwen Mi, Sha Yang, Wei Liu, Miaomiao Cui, Xu Deng (), Zuankai Wang () and Youfa Zhang ()
Additional contact information
Wancheng Gu: Southeast University
Wanbo Li: City University of Hong Kong
Yu Zhang: Southeast University
Yage Xia: Southeast University
Qiaoling Wang: Southeast University
Wei Wang: Southeast University
Ping Liu: Southeast University
Xinquan Yu: Southeast University
Hui He: Southeast University
Caihua Liang: Southeast University
Youxue Ban: Southeast University
Changwen Mi: Southeast University
Sha Yang: Nanjing University of Science and Technology
Wei Liu: Nanjing University of Science and Technology
Miaomiao Cui: City University of Hong Kong
Xu Deng: University of Electronic Science and Technology of China
Zuankai Wang: City University of Hong Kong
Youfa Zhang: Southeast University

Nature Communications, 2023, vol. 14, issue 1, 1-9

Abstract: Abstract Developing versatile, scalable, and durable coatings that resist the accretion of matters (liquid, vapor, and solid phases) in various operating environments is important to industrial applications, yet has proven challenging. Here, we report a cellular coating that imparts liquid-repellence, vapor-imperviousness, and solid-shedding capabilities without the need for complicated structures and fabrication processes. The key lies in designing basic cells consisting of rigid microshells and releasable nanoseeds, which together serve as a rigid shield and a bridge that chemically bonds with matrix and substrate. The durability and strong resistance to accretion of different matters of our cellular coating are evidenced by strong anti-abrasion, enhanced anti-corrosion against saltwater over 1000 h, and maintaining dry in complicated phase change conditions. The cells can be impregnated into diverse matrixes for facile mass production through scalable spraying. Our strategy provides a generic design blueprint for engineering ultra-durable coatings for a wide range of applications.

Date: 2023
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DOI: 10.1038/s41467-023-41675-y

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