Abstract
AbstractOver the past few decades, self-cleaning surfaces have been significantly investigated due to their commercial applications in various fields. However, the researchers are still lagging in developing better mathematical models and fabricating hydrophobic surfaces for direct espousal in industry. In this study, a force-balanced system-based mathematical model is modified for a rectangular pillared array-based micro-structure and MATLAB simulations were used to validate it theoretically. The same pattern was developed on Al-surface using a single-point diamond turning (SPDT) machine experimentally. The experimental results were validated using coherence correlation interferometry (CCI), optical microscopy, drop shape analyser (DSA), and field emission scanning electron microscopy (FESEM). The experimentally estimated and theoretically predicted contact angles of the rectangular pillared array are found in close agreement. Further, the advancement in mathematical models and models-based surface manufacturing strategies can boost the research in this domain to develop robust self-cleaning hydrophobic surfaces.
Funder
Science and Engineering Research Board
University of Southern Denmark
Publisher
Springer Science and Business Media LLC
Reference34 articles.
1. Cheng, C. T., Zhang, G., & To, S. (2016). Wetting characteristics of bare micro-patterned cyclic olefin copolymer surfaces fabricated by ultra-precision raster milling. RSC Advances, 6(2), 1562–1570. https://doi.org/10.1039/c5ra20809b
2. Dwivedi, S., Dixit, A. R., Das, A. K., & Nag, A. (2023). A novel additive texturing of stainless steel 316L through binder jetting additive manufacturing. International Journal of Precision Engineering and Manufacturing-Green Technology, 4, 1–9.
3. Evans, R., Stewart, M. C., & Wilding, N. B. (2019). A unified description of hydrophilic and superhydrophobic surfaces in terms of the wetting and drying transitions of liquids. Proceedings of the National Academy of Sciences of the United States of America, 116(48), 23901–23908. https://doi.org/10.1073/pnas.1913587116
4. Feng, J., Tuominen, M. T., & Rothstein, J. P. (2011). Hierarchical superhydrophobic surfaces fabricated by dual-scale electron-beam-lithography with well-ordered secondary nanostructures. Advanced Functional Materials, 21(19), 3715–3722. https://doi.org/10.1002/adfm.201100665
5. Hooda, A., Goyat, M. S., Kumar, A., & Gupta, R. (2018). A facile approach to develop modified nano-silica embedded polystyrene based transparent superhydrophobic coating. Materials Letters, 233, 340–343. https://doi.org/10.1016/j.matlet.2018.09.043