Fabrication of EP@PDMS@F-SiO<sub>2</sub> Superhydrophobic Composite Coating on Titanium Alloy Substrate
In this study, a preparation method of superhydrophobic composite coating based on a titanium alloy (Ti-6Al-4V) substrate is proposed. The micro-scale pit array structure was fabricated via laser etching technology. Utilizing the synergistic effects of epoxy resin (EP), polydimethylsiloxane (PDMS),...
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MDPI AG
2025-06-01
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| Series: | Biomimetics |
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| Online Access: | https://www.mdpi.com/2313-7673/10/6/404 |
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| author | Chaoming Huang Jinhe Qi Jie Li Xinchi Li Jiawei Chen Shuo Fu Yanning Lu |
| author_facet | Chaoming Huang Jinhe Qi Jie Li Xinchi Li Jiawei Chen Shuo Fu Yanning Lu |
| author_sort | Chaoming Huang |
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| description | In this study, a preparation method of superhydrophobic composite coating based on a titanium alloy (Ti-6Al-4V) substrate is proposed. The micro-scale pit array structure was fabricated via laser etching technology. Utilizing the synergistic effects of epoxy resin (EP), polydimethylsiloxane (PDMS), and fluorinated nanosilica (F-SiO<sub>2</sub>), we successfully prepared an EP@PDMS@F-SiO<sub>2</sub> composite coating. The effects of the contents of EP, PDMS, and F-SiO<sub>2</sub> on the surface wettability, mechanical stability, and UV durability were studied by optimizing the coating ratio through orthogonal experiments. The results show that the micro–nano composite structure formed by laser etching can effectively fix the coating particles and provide excellent superhydrophobicity on the surface. The coating retains high hydrophobicity after paper abrasion (1000 cm under a 200 g load), demonstrating the mechanical stability of the armor-like structure, High-content F-SiO<sub>2</sub> coatings exhibit greater UV durability. In addition, the coating surface has low droplet adhesion and self-cleaning capabilities for efficient contaminant removal. The research provides theoretical and technical support for the design and engineering application of a non-fluorinated, environmentally friendly superhydrophobic coating. |
| format | Article |
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| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
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| series | Biomimetics |
| spelling | doaj-art-0fa8934e60a64f1aa51a9a0928fe37cd2025-06-25T13:32:50ZengMDPI AGBiomimetics2313-76732025-06-0110640410.3390/biomimetics10060404Fabrication of EP@PDMS@F-SiO<sub>2</sub> Superhydrophobic Composite Coating on Titanium Alloy SubstrateChaoming Huang0Jinhe Qi1Jie Li2Xinchi Li3Jiawei Chen4Shuo Fu5Yanning Lu6College of Marine Engineering, Jimei University, Xiamen 361021, ChinaSchool of Computer and Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, ChinaSchool of Computer and Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, ChinaSchool of Computer and Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, ChinaSchool of Computer and Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, ChinaSchool of Computer and Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, ChinaSchool of Computer and Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, ChinaIn this study, a preparation method of superhydrophobic composite coating based on a titanium alloy (Ti-6Al-4V) substrate is proposed. The micro-scale pit array structure was fabricated via laser etching technology. Utilizing the synergistic effects of epoxy resin (EP), polydimethylsiloxane (PDMS), and fluorinated nanosilica (F-SiO<sub>2</sub>), we successfully prepared an EP@PDMS@F-SiO<sub>2</sub> composite coating. The effects of the contents of EP, PDMS, and F-SiO<sub>2</sub> on the surface wettability, mechanical stability, and UV durability were studied by optimizing the coating ratio through orthogonal experiments. The results show that the micro–nano composite structure formed by laser etching can effectively fix the coating particles and provide excellent superhydrophobicity on the surface. The coating retains high hydrophobicity after paper abrasion (1000 cm under a 200 g load), demonstrating the mechanical stability of the armor-like structure, High-content F-SiO<sub>2</sub> coatings exhibit greater UV durability. In addition, the coating surface has low droplet adhesion and self-cleaning capabilities for efficient contaminant removal. The research provides theoretical and technical support for the design and engineering application of a non-fluorinated, environmentally friendly superhydrophobic coating.https://www.mdpi.com/2313-7673/10/6/404titanium alloylaser etchingEP@PDMS@F-SiO<sub>2</sub> composite coatingclean upUV durability |
| spellingShingle | Chaoming Huang Jinhe Qi Jie Li Xinchi Li Jiawei Chen Shuo Fu Yanning Lu Fabrication of EP@PDMS@F-SiO<sub>2</sub> Superhydrophobic Composite Coating on Titanium Alloy Substrate Biomimetics titanium alloy laser etching EP@PDMS@F-SiO<sub>2</sub> composite coating clean up UV durability |
| title | Fabrication of EP@PDMS@F-SiO<sub>2</sub> Superhydrophobic Composite Coating on Titanium Alloy Substrate |
| title_full | Fabrication of EP@PDMS@F-SiO<sub>2</sub> Superhydrophobic Composite Coating on Titanium Alloy Substrate |
| title_fullStr | Fabrication of EP@PDMS@F-SiO<sub>2</sub> Superhydrophobic Composite Coating on Titanium Alloy Substrate |
| title_full_unstemmed | Fabrication of EP@PDMS@F-SiO<sub>2</sub> Superhydrophobic Composite Coating on Titanium Alloy Substrate |
| title_short | Fabrication of EP@PDMS@F-SiO<sub>2</sub> Superhydrophobic Composite Coating on Titanium Alloy Substrate |
| title_sort | fabrication of ep pdms f sio sub 2 sub superhydrophobic composite coating on titanium alloy substrate |
| topic | titanium alloy laser etching EP@PDMS@F-SiO<sub>2</sub> composite coating clean up UV durability |
| url | https://www.mdpi.com/2313-7673/10/6/404 |
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