A Facile and Cost-Effective Method to Prepare a Robust Superhydrophobic RTV Silicone Coating
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Methods
2.3. Characterizations
3. Results and Discussion
3.1. Wettability
3.2. Surface Morphology
3.3. Chemical Composition
3.4. Anti-Corrosion Performance
3.5. Durability
3.6. Self-Cleaning Effect
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Coating | 1st Layer | 2nd Layer | 3rd Layer | 4th Layer | 5th Layer |
---|---|---|---|---|---|
Coating A | RTV Silicone | Silica particles | RTV Silicone | - | - |
Coating B | RTV Silicone | - | - | Silica nanoparticles | RTV Silicone |
Coating C | RTV Silicone | Silica particles | RTV Silicone | Silica nanoparticles | RTV Silicone |
Sample | Rs | CPE1 | n1 | R1 | CPE2 | n2 | R2 |
---|---|---|---|---|---|---|---|
Bare | 5.476 | 9.751 × 10−3 | 0.7238 | 267 | 1.558 × 10−3 | 0.68 | 1.375 |
Coating | 198.5 | 9.137 × 10−9 | 1 | 1.501 × 106 | 3.017 × 10−9 | 1 | 9.574 × 108 |
Substrate | Coating | Durability Test | CA (Before Test) | CA (After Test) | SA (Before Test) | SA (After Test) |
---|---|---|---|---|---|---|
Glass slide | Coating B | Finger wiping | 156.4° | 126.6° | 7.5° | >10° |
Glass slide | Coating C | Finger wiping | 153.8° | 154.3° | 8.6° | 8.7° |
Glass slide | Coating C | Putty knife scratch | 153.7° | 153.2° | 8.9° | 9.5° |
Copper foil | Coating C | Hammer | 153.1° | 151.9° | 8.5° | 9.1° |
Glass slide | Coating C | Utility knife cutting | 153.4° | 153.8° | 9.2° | 8.8° |
Copper foil | Coating C | Screwdriver scratch | 156° | 152.1° | 8.9° | 9.3° |
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Liao, K.; Zhu, J. A Facile and Cost-Effective Method to Prepare a Robust Superhydrophobic RTV Silicone Coating. Coatings 2021, 11, 312. https://doi.org/10.3390/coatings11030312
Liao K, Zhu J. A Facile and Cost-Effective Method to Prepare a Robust Superhydrophobic RTV Silicone Coating. Coatings. 2021; 11(3):312. https://doi.org/10.3390/coatings11030312
Chicago/Turabian StyleLiao, Kaijin, and Jiyuan Zhu. 2021. "A Facile and Cost-Effective Method to Prepare a Robust Superhydrophobic RTV Silicone Coating" Coatings 11, no. 3: 312. https://doi.org/10.3390/coatings11030312