Superhydrophobic SiO2/Trimethylchlorosilane Coating for Self-Cleaning Application of Construction Materials
Kurbanova A. Myrzakhmetova N. Akimbayeva N. Kishibayev K. Nurbekova M. Kanagat Y. Tursynova A. Zhunussova T. Seralin A. Kudaibergenova R. Toktarbay Z. Toktarbaiuly O.
October 2022MDPI
Coatings
2022#12Issue 10
This study has demonstrated, for the first time, the potential application of coatings to protect bricks or architectures against detrimental atmospheric effects via a self-cleaning approach. In this research, a facile fabrication method was developed to produce amorphous SiO2 particles and their hierarchical structures via applying trimethylchlorosilane (TMCS). They were fully characterized by various surface analytic tools, including a goniometer, SEM, AFM, zeta sizer, and a spectroscopic technique (FTIR), and then applied as super hydrophobic coatings on glass and sand. The characterization results revealed that the SiO2 particles are amorphous, quasi-spherical particles with an average diameter of 250–300 nm, and the hierarchical structures in the film were assembled from building blocks of SiO2 and TMCS. The wettability of the films can be controlled by changing the pH of the SiO2/TCMS dispersion. A super hydrophobic surface with a water contact angle of 165° ± 1° was achieved at the isoelectric point of the films. The obtained translucent super hydrophobic SiO2/TMCS coatings show good self-cleaning performances for glass and sand as construction materials. This study indicated that the superhydrophobic coatings may have potential applications in the protection of buildings and construction architectures in the future.
construction materials , self-cleaning , SiO2/TMCS coatings , superhydrophobic surfaces
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Renewable Energy Systems and Material Science Laboratory, National Laboratory Astana (NLA), Nazarbayev University, Kabanbay Batyr 53, Nur-Sultan, 010000, Kazakhstan
Department of Chemistry, Faculty of Natural Science, Kazakh National Woman’s Teacher Training University, Aitekebi Street 99, Almaty, 700420, Kazakhstan
Department of Chemistry, Faculty of Natural Sciecnes, L.N. Gumilyov, Eurasian National University, Kazhymukan Street 5, Nur-Sultan, 010008, Kazakhstan
Department of Chemistry and Chemical Technology, Faculty of Technology, Taraz Regional University Named after M.Kh.Dulaty, Taraz, 080000, Kazakhstan
Renewable Energy Systems and Material Science Laboratory
Department of Chemistry
Department of Chemistry
Department of Chemistry and Chemical Technology
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