Rapid fabrication of a transparent superhydrophobic coating: potential application with pollution-free under constructio
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Rapid fabrication of a transparent superhydrophobic coating: potential application with pollution‑free under construction Jing Wang1 · Han Wang1 · Yanling Wang1 · Mengke Wang2 · Vikramjeet Singh3 · Xuehu Men1 · Zhaozhu Zhang2 Received: 21 February 2020 / Accepted: 30 May 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Superhydrophobic materials has attracted considerable attention due to their usage in wide range of practical applications. However, in practical conditions, inevitable high discharge of VOC and dust particles in the common spraying method could be very harmful to the environment and workers as well. Herein, modified silica nanoparticles were combined with a commercial PDMS to obtain a non-fluoride transparent superhydrophobic coating cured at ambient temperature via an environment-friendly method of brushing. The coating can be fabricated on a wide range of substrates in a short time of only two minutes. The coating demonstrated excellent thermal stability upto 360 °C and corrosion resistance in electrochemical testing. Owing to the short fabrication process, the coating can be readily repaired by prompt brushing after being destroyed. With ultra-easy fabrication, it is expected that the coating has a great potential for practical application with different requirements such as low pollutant discharge, high transmittance, good thermostability or corrosion resistance. Keywords Superhydrophobic · Transparency · Rapid fabrication · Fluorine-free · Brush-coating
1 Introduction A tremendous growth has been recorded in the development of superhydrophobic materials in recent decades [1–3]. Their excellent repellency to water endows self-cleaning [4–10], anti-fouling [11–15], anti-corrosion [9, 16–20] and several other useful properties. With the better understanding of theory and promising advances in material and technology, Electronic supplementary material The online version of this article (https://doi.org/10.1007/s00339-020-03685-1) contains supplementary material, which is available to authorized users. * Xuehu Men [email protected] * Zhaozhu Zhang [email protected] 1
Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, People’s Republic of China
2
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
3
Nanoengineered Systems Laboratory, UCL Mechanical Engineering, University College London, London, UK
the superhydrophobic material is gradually leaped toward commercialization. Superhydrophobic materials have been successfully applied in many fields due to their special selfcleaning properties which can reduce the maintenance cost and thus energy consumption and pollutant discharge [1, 5, 17]. Since dust and volatile organic compounds VOC pollutants is largely produced in common spraying process, as well as fluoride which is usually used in the prep
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