Super-hydrophobic/icephobic coatings based on silica nanoparticles modified by self-assembled monolayers
A super-hydrophobic surface has been obtained from nanocomposite materials based on silica nanoparticles and self-assembled monolayers of 1H,1H,2H,2H-perfluorooctyltriethoxysilane (POTS) using spin coating and chemical vapor deposition methods. Scanning electron microscope images reveal the porous s...
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MDPI
2016
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| Online Access: | https://eprints.nottingham.ac.uk/39137/ |
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| author | Liu, Junpeng Janjua, Zaid A. Roe, Martin Xu, Fang Turnbull, Barbara Choi, Kwing-So Hou, Xianghui |
| author_facet | Liu, Junpeng Janjua, Zaid A. Roe, Martin Xu, Fang Turnbull, Barbara Choi, Kwing-So Hou, Xianghui |
| author_sort | Liu, Junpeng |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | A super-hydrophobic surface has been obtained from nanocomposite materials based on silica nanoparticles and self-assembled monolayers of 1H,1H,2H,2H-perfluorooctyltriethoxysilane (POTS) using spin coating and chemical vapor deposition methods. Scanning electron microscope images reveal the porous structure of the silica nanoparticles, which can trap small-scale air pockets. An average water contact angle of 163° and bouncing off of incoming water droplets suggest that a super-hydrophobic surface has been obtained based on the silica nanoparticles and POTS coating. The monitored water droplet icing test results show that icing is significantly delayed by silica-based nano-coatings compared with bare substrates and commercial icephobic products. Ice adhesion test results show that the ice adhesion strength is reduced remarkably by silica-based nano-coatings. The bouncing phenomenon of water droplets, the icing delay performance and the lower ice adhesion strength suggest that the super-hydrophobic coatings based on a combination of silica and POTS also show icephobicity. An erosion test rig based on pressurized pneumatic water impinging impact was used to evaluate the durability of the super-hydrophobic/icephobic coatings. The results show that durable coatings have been obtained, although improvement will be needed in future work aiming for applications in aerospace. |
| first_indexed | 2025-11-14T19:37:24Z |
| format | Article |
| id | nottingham-39137 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:37:24Z |
| publishDate | 2016 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-391372020-05-04T18:27:44Z https://eprints.nottingham.ac.uk/39137/ Super-hydrophobic/icephobic coatings based on silica nanoparticles modified by self-assembled monolayers Liu, Junpeng Janjua, Zaid A. Roe, Martin Xu, Fang Turnbull, Barbara Choi, Kwing-So Hou, Xianghui A super-hydrophobic surface has been obtained from nanocomposite materials based on silica nanoparticles and self-assembled monolayers of 1H,1H,2H,2H-perfluorooctyltriethoxysilane (POTS) using spin coating and chemical vapor deposition methods. Scanning electron microscope images reveal the porous structure of the silica nanoparticles, which can trap small-scale air pockets. An average water contact angle of 163° and bouncing off of incoming water droplets suggest that a super-hydrophobic surface has been obtained based on the silica nanoparticles and POTS coating. The monitored water droplet icing test results show that icing is significantly delayed by silica-based nano-coatings compared with bare substrates and commercial icephobic products. Ice adhesion test results show that the ice adhesion strength is reduced remarkably by silica-based nano-coatings. The bouncing phenomenon of water droplets, the icing delay performance and the lower ice adhesion strength suggest that the super-hydrophobic coatings based on a combination of silica and POTS also show icephobicity. An erosion test rig based on pressurized pneumatic water impinging impact was used to evaluate the durability of the super-hydrophobic/icephobic coatings. The results show that durable coatings have been obtained, although improvement will be needed in future work aiming for applications in aerospace. MDPI 2016-12-02 Article PeerReviewed Liu, Junpeng, Janjua, Zaid A., Roe, Martin, Xu, Fang, Turnbull, Barbara, Choi, Kwing-So and Hou, Xianghui (2016) Super-hydrophobic/icephobic coatings based on silica nanoparticles modified by self-assembled monolayers. Nanomaterials, 6 (12). 232/1-232/10. ISSN 2079-4991 super-hydrophobic; icephobic; silica nanoparticles; fluorosilane; self-assembled monolayers; durability http://www.mdpi.com/2079-4991/6/12/232 doi:10.3390/nano6120232 doi:10.3390/nano6120232 |
| spellingShingle | super-hydrophobic; icephobic; silica nanoparticles; fluorosilane; self-assembled monolayers; durability Liu, Junpeng Janjua, Zaid A. Roe, Martin Xu, Fang Turnbull, Barbara Choi, Kwing-So Hou, Xianghui Super-hydrophobic/icephobic coatings based on silica nanoparticles modified by self-assembled monolayers |
| title | Super-hydrophobic/icephobic coatings based on silica nanoparticles modified by self-assembled monolayers |
| title_full | Super-hydrophobic/icephobic coatings based on silica nanoparticles modified by self-assembled monolayers |
| title_fullStr | Super-hydrophobic/icephobic coatings based on silica nanoparticles modified by self-assembled monolayers |
| title_full_unstemmed | Super-hydrophobic/icephobic coatings based on silica nanoparticles modified by self-assembled monolayers |
| title_short | Super-hydrophobic/icephobic coatings based on silica nanoparticles modified by self-assembled monolayers |
| title_sort | super-hydrophobic/icephobic coatings based on silica nanoparticles modified by self-assembled monolayers |
| topic | super-hydrophobic; icephobic; silica nanoparticles; fluorosilane; self-assembled monolayers; durability |
| url | https://eprints.nottingham.ac.uk/39137/ https://eprints.nottingham.ac.uk/39137/ https://eprints.nottingham.ac.uk/39137/ |