Journal
ACS OMEGA
Volume 5, Issue 8, Pages 4100-4108Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.9b03775
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Funding
- National Natural Science Foundation of China [21774098]
- Open Foundation of the State Key Laboratory of Silicate Materials for Architectures at WUT [SYSJJ2018-04]
- Opening Project of State Key Laboratory of Polymer Materials Engineering (Sichuan University) [sklpme2019-4-26]
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In this work, we report that superhydrophobic coatings can be prepared by a simple spray-coating technique using readily available materials such as polydimethylsiloxane (PDMS) and hydrophilic and hydrophobic SiO2 nanoparticles. PDMS can combine with the two kinds of SiO2 nanoparticles to form a rough structure, which results in superhydrophobicity of the coatings. The prepared superhydrophobic coating has a water contact angle of 156.4 degrees and a sliding angle of less than 5 degrees. Moreover, the coatings can be applied to various substrates such as glass, paper, and plastic. In addition, the coatings show excellent stability and still remain superhydrophobic after ultraviolet radiation, sand abrasion and water impact, tape peeling, and treatment with a strong alkali/acid solution. Furthermore, the superhydrophobic surfaces are proven to be suitable for antifouling and self-cleaning.
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