Aging analysis of textured water-repellent coatings under ultraviolet radiation and water

Authors

DOI:

https://doi.org/10.15587/2706-5448.2022.263528

Keywords:

water contact angle, UV resistance, water repellent coatings, superhydrophobicity

Abstract

The object of research in this work is a coating based on styrene butyl methacrylate binder and calcium carbonate modified with stearic acid. The existing problem is that the stability of the properties of superhydrophobic coatings when interacting with environmental factors – ultraviolet radiation, water vapor or dynamic action of water is limited. Establishing the relationship between the change in the chemical composition and texture of structured water-repellent surfaces under the influence of environmental factors is an essential step towards creating a stability model for such coatings. The work carried out is aimed at establishing the nature of the loss of water repellency of textured organo-mineral coatings under exposure to ultraviolet radiation in the UV-A range and water.

UV resistance testing was performed in accordance with ASTM D 4329. The surface texture was examined using electron microscopy. The study of the change in chemical composition was performed using the IR spectroscopy method.

As a result, it was shown that, under UV radiation, the most vulnerable component of organo-mineral coatings consisting of styrene-butyl methacrylate polymer and calcium carbonate modified with stearic acid is the polymer matrix, the oxidation of which leads to surface hydrophilization. The action of water in both static and dynamic modes leads to the loss of the upper layer of microparticles which forms the structure. It was found that in the surface layer of the polymer, upon irradiation with ultraviolet, the formation of polar carboxyl groups occurs at the initial stages of irradiation, which is accompanied by noticeable hydrophilization. Based on the obtained results, one of the ways to increase the resistance of additive water-repellent coatings to environmental factors can be the use of polymers that are more resistant to UV radiation. An alternative way is to use the optimization of the interfacial contact, which will ensure the slowing down of the loss of texture elements in the water environment.

Author Biographies

Oleksiy Myronyuk, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute»

PhD, Associate Professor

Department of Chemical Technology of Composition Materials

Denys Baklan, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute»

Postgraduate Student

Department of Chemical Technology of Composition Materials

References

  1. Erbil, H. Y. (2020). Practical Applications of Superhydrophobic Materials and Coatings: Problems and Perspectives. Langmuir, 36 (10), 2493–2509. doi: http://doi.org/10.1021/acs.langmuir.9b03908
  2. Wang, N., Tang, L., Tong, W., Xiong, D. (2018). Fabrication of robust and scalable superhydrophobic surfaces and investigation of their anti-icing properties. Materials&Design, 156, 320–328. doi: http://doi.org/10.1016/j.matdes.2018.06.053
  3. Li, J., Zhou, Y., Wang, W., Xu, C., Ren, L. (2020). Superhydrophobic Copper Surface Textured by Laser for Delayed Icing Phenomenon. Langmuir, 36 (5), 1075–1082. doi: http://doi.org/10.1021/acs.langmuir.9b02273
  4. Darmanin, T., Guittard, F. (2015). Superhydrophobic and superoleophobic properties in nature. Materials Today, 18 (5), 273–285. doi: http://doi.org/10.1016/j.mattod.2015.01.001
  5. Rius-Ayra, O., Castellote-Alvarez, R., Escobar, A. M., Llorca-Isern, N. (2019). Robust and superhydrophobic coating highly resistant to wear and efficient in water/oil separation. Surface and Coatings Technology, 364, 330–340. doi: http://doi.org/10.1016/j.surfcoat.2019.01.077
  6. Ellinas, K., Dimitrakellis, P., Sarkiris, P., Gogolides, E. (2021). A Review of Fabrication Methods, Properties and Applications of Superhydrophobic Metals. Processes, 9 (4), 666. doi: http://doi.org/10.3390/pr9040666
  7. Cao, Z., Daly, M., Clémence, L., Geever, L. M., Major, I., Higginbotham, C. L., Devine, D. M. (2016). Chemical surface modification of calcium carbonate particles with stearic acid using different treating methods. Applied Surface Science, 378, 320–329. doi: http://doi.org/10.1016/j.apsusc.2016.03.205
  8. Sakr, A., Naser, A., Abd El-Wahab, H., Abd El-Fattah, M., Mostafa, A. (2018). Preparation and characterization of modified reclaimed asphalt by using styrene – butyl acrylate nanoemulsion copolymer. Egyptian Journal of Chemistry, 61 (2), 280–290. doi: http://doi.org/10.21608/ejchem.2018.2956.1245
  9. Mohamed, O. A., Moustafa, A. B., Mehawed, M. A., El-Sayed, N. H. (2009). Styrene and butyl methacrylate copolymers and their application in leather finishing. Journal of Applied Polymer Science, 111 (3), 1488–1495. doi: http://doi.org/10.1002/app.29022
  10. Chiantore, O., Trossarelli, L., Lazzari, M. (2000). Photooxidative degradation of acrylic and methacrylic polymers. Polymer, 41 (5), 1657–1668. doi: http://doi.org/10.1016/s0032-3861(99)00349-3
  11. Shanti, R., Hadi, A. N., Salim, Y. S., Chee, S. Y., Ramesh, S., Ramesh, K. (2017). Degradation of ultra-high molecular weight poly(methyl methacrylate-co-butyl acrylate-co-acrylic acid) under ultra violet irradiation. RSC Advances, 7 (1), 112–120. doi: http://doi.org/10.1039/c6ra25313j
  12. Myronyuk, O. V., Baklan, D. V. (2021). Determination of stochastic superhydrophobic structures surface energy based on calcium carbonate. Scientific Notes of Taurida National V. I. Vernadsky University. Series: Technical Sciences, 4, 204–209. doi: http://doi.org/10.32838/2663-5941/2021.4/31
  13. West, A. (2018). Experimental Methods to Investigate Self-Assembly at Interfaces. Self-Assembly Processes at Interfaces – Multiscale Phenomena, 131–241. doi: http://doi.org/10.1016/b978-0-12-801970-2.00003-3

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Published

2022-08-31

How to Cite

Myronyuk, O., & Baklan, D. (2022). Aging analysis of textured water-repellent coatings under ultraviolet radiation and water. Technology Audit and Production Reserves, 4(3(66), 12–15. https://doi.org/10.15587/2706-5448.2022.263528

Issue

Vol. 4 No. 3(66) (2022): Chemical engineering

Section

Chemical and Technological Systems: Reports on Research Projects

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Copyright (c) 2022 Oleksiy Myronyuk, Denys Baklan

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