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Superhydrophobic SiO2/Trimethylchlorosilane Coating for Self-Cleaning Application of Construction Materials
Автор(ы)
Aliya Kurbanova
Yernar Kanagat
Arailym Tursynova
Tomiris Zhunussova
Aidar Seralin
Rabiga M. Kudaibergenova
Zhexenbek Toktarbay
Olzat Toktarbaiuly
Дата публикации
28 сентября 2022 г.
Тип
journal article
Издатель
Multidisciplinary Digital Publishing Institute
Журнал
Том
12
Выпуск
10
Первая страница
1422
Последняя страница
1422
ISSN
2079-6412
Аннотация
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.
Области науки (FoS)