SiO2-Based Nanostructured Superhydrophobic Film with High Optical Transmittance
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Fabrication of SiO2-Based Nanostructured Superhydrophobic Surface
2.3. Characterization
3. Results and Discussion
4. Conclusions
- (1)
- The film surface exhibited a branched network structure composed of interconnected quasi-spherical nanoparticles (size ~10–35 nm) with submicrometer-scale roughness (Rq = 252.7 nm).
- (2)
- The fabricated film exhibited a composite wetting mode and was found to be effectively superhydrophobic with CA of 163 ± 1° and hysteresis as low as ~2°, which was attributed to the synergistic effect of convenient surface morphology and chemistry.
- (3)
- The superhydrophobic film exhibited an excellent self-cleaning performance.
- (4)
- The SiO2-based nanostructured film exhibited high optical transmittance in the visible spectrum portion. This was possible to achieve due to the submicrometer-scale roughness and branched network structure of the film surface.
- (5)
- Raman analysis determined a number of vibrational modes corresponding to hydrophobic methyl groups, thus confirming that fumed SiO2 was successfully modified via silylation derivatization reaction.
- (6)
- The method presented herein is not complicated, allows for obtaining large quantities of modified SiO2 nanoparticle dispersions and can be used in combination with dip-coating, spray-coating, spin-coating, drop-casting and Langmuir-Blodgett deposition.
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Lazauskas, A.; Jucius, D.; Puodžiukynas, L.; Guobienė, A.; Grigaliūnas, V. SiO2-Based Nanostructured Superhydrophobic Film with High Optical Transmittance. Coatings 2020, 10, 934. https://doi.org/10.3390/coatings10100934
Lazauskas A, Jucius D, Puodžiukynas L, Guobienė A, Grigaliūnas V. SiO2-Based Nanostructured Superhydrophobic Film with High Optical Transmittance. Coatings. 2020; 10(10):934. https://doi.org/10.3390/coatings10100934
Chicago/Turabian StyleLazauskas, Algirdas, Dalius Jucius, Linas Puodžiukynas, Asta Guobienė, and Viktoras Grigaliūnas. 2020. "SiO2-Based Nanostructured Superhydrophobic Film with High Optical Transmittance" Coatings 10, no. 10: 934. https://doi.org/10.3390/coatings10100934