Production of an EP/PDMS/SA/AlZnO Coated Superhydrophobic Surface through an Aerosol-Assisted Chemical Vapor Deposition Process

Journal article


Park, Seonghyeok, Huo, Jiatong, Shin, Juhun, Heo, Ki Joon, Kalmoni, Julie Jalila, Sathasivam, S., Hwang, G. and Carmalt, C. (2022). Production of an EP/PDMS/SA/AlZnO Coated Superhydrophobic Surface through an Aerosol-Assisted Chemical Vapor Deposition Process. Langmuir. https://doi.org/10.1021/acs.langmuir.2c01060
AuthorsPark, Seonghyeok, Huo, Jiatong, Shin, Juhun, Heo, Ki Joon, Kalmoni, Julie Jalila, Sathasivam, S., Hwang, G. and Carmalt, C.
Abstract

In this study, a superhydrophobic coating on glass has been prepared through a single-step aerosol-assisted chemical vapor deposition (AACVD) process. During the process, an aerosolized precursor containing polydimethylsiloxane, epoxy resin, and stearic acid functionalized Al-doped ZnO nanoparticles was deposited onto the glass at 350 °C. X-ray photoelectron spectroscopy, scanning electron microscopy, and atomic force microscopy showed that the precursor was successfully coated and formed a nano/microstructure (surface roughness: 378.0 ± 46.1 nm) on the glass surface. The coated surface had a water contact angle of 159.1 ± 1.2°, contact angle hysteresis of 2.2 ± 1.7°, and rolling off-angle of 1°, indicating that it was superhydrophobic. In the self-cleaning test of the coated surface at a tilted angle of 20°, it was shown that water droplets rolled and washed out dirt on the surface. The stability tests showed that the surface remained superhydrophobic after 120 h of exposure to ultraviolet (UV) irradiation and even after heat exposure at 350 °C. In addition, the surface was highly repellent to water solutions of pH 1–13. The results showed that the addition of the functionalized nanoparticles into the precursor allowed for the control of surface roughness and provided a simplified single-step fabrication process of the superhydrophobic surface. This provides valuable information for developing the manufacturing process for superhydrophobic surfaces.

KeywordsElectrochemistry; Spectroscopy; Surfaces and Interfaces; Condensed Matter Physics; General Materials Science
Year2022
JournalLangmuir
PublisherAmerican Chemical Society (ACS)
ISSN0743-7463
1520-5827
Digital Object Identifier (DOI)https://doi.org/10.1021/acs.langmuir.2c01060
Funder/ClientRamsay Memorial Trust
UCL Chemistry
Publication dates
Online13 Jun 2022
Publication process dates
Accepted27 May 2022
Deposited02 Aug 2022
Publisher's version
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Open
Accepted author manuscript
License
File Access Level
Controlled
Licensehttps://creativecommons.org/licenses/by/4.0/
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License: CC BY 4.0
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