Durable waterborne hydrophobic bio-epoxy coating with improved anti-icing and self-cleaning performance
This study reports an environment-friendly waterborne hydrophobic bioepoxy coating (WHBC), prepared by introducing dual-scale SiO 2 nanoparticles and (3-glycidyloxypropyl) trimethoxysilane into an aqueous mixture containing the isosorbide-based epoxy and a hydrophobic curing agent. The coatings were...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/143289 |
| _version_ | 1824453939699908608 |
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| author | Zheng, Shunli Bellido-Aguilar, Daniel Angel Wu, Xinghua Zhan, Xuejun Huang, Yinjuan Zeng, Xianting Zhang, Qichun Chen, Zhong |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Zheng, Shunli Bellido-Aguilar, Daniel Angel Wu, Xinghua Zhan, Xuejun Huang, Yinjuan Zeng, Xianting Zhang, Qichun Chen, Zhong |
| author_sort | Zheng, Shunli |
| collection | NTU |
| description | This study reports an environment-friendly waterborne hydrophobic bioepoxy coating (WHBC), prepared by introducing dual-scale SiO 2 nanoparticles and (3-glycidyloxypropyl) trimethoxysilane into an aqueous mixture containing the isosorbide-based epoxy and a hydrophobic curing agent. The coatings were applied on Fe foil substrates using a one-step spin-coating method. The optimal coating with 33.3 wt % SiO 2 nanoparticles exhibits high hydrophobicity with a water contact angle (CA) of 153.0 ± 1.1° and a sliding angle (SA) of 14.3 ± 1.9°. This optimal coating is found to have good mechanical durability against sand erosion. It maintained a high CA of 151.3 ± 2.0° and increased SA of 23.4 ± 3.7° after mechanical sandblasting for 30 s. The as-prepared optimal coating also showed excellent self-cleaning performance and was able to retain the good self-cleaning ability after the sandblasting. In addition, the as-obtained optimal coating shows a much lower icing temperature, a significantly longer icing delay time, and a low ice adhesion strength at 0.101 ± 0.019 MPa. The developed coating is biobased and green, and it has various promising applications for marine, aerospace, energy harvesting, and sports applications. |
| first_indexed | 2025-02-19T03:14:23Z |
| format | Journal Article |
| id | ntu-10356/143289 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:14:23Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1432892023-07-14T15:59:32Z Durable waterborne hydrophobic bio-epoxy coating with improved anti-icing and self-cleaning performance Zheng, Shunli Bellido-Aguilar, Daniel Angel Wu, Xinghua Zhan, Xuejun Huang, Yinjuan Zeng, Xianting Zhang, Qichun Chen, Zhong School of Materials Science and Engineering Singapore Institute of Manufacturing Technology, A*STAR Engineering::Materials Waterborne Coatings Hydrophobic This study reports an environment-friendly waterborne hydrophobic bioepoxy coating (WHBC), prepared by introducing dual-scale SiO 2 nanoparticles and (3-glycidyloxypropyl) trimethoxysilane into an aqueous mixture containing the isosorbide-based epoxy and a hydrophobic curing agent. The coatings were applied on Fe foil substrates using a one-step spin-coating method. The optimal coating with 33.3 wt % SiO 2 nanoparticles exhibits high hydrophobicity with a water contact angle (CA) of 153.0 ± 1.1° and a sliding angle (SA) of 14.3 ± 1.9°. This optimal coating is found to have good mechanical durability against sand erosion. It maintained a high CA of 151.3 ± 2.0° and increased SA of 23.4 ± 3.7° after mechanical sandblasting for 30 s. The as-prepared optimal coating also showed excellent self-cleaning performance and was able to retain the good self-cleaning ability after the sandblasting. In addition, the as-obtained optimal coating shows a much lower icing temperature, a significantly longer icing delay time, and a low ice adhesion strength at 0.101 ± 0.019 MPa. The developed coating is biobased and green, and it has various promising applications for marine, aerospace, energy harvesting, and sports applications. Agency for Science, Technology and Research (A*STAR) Accepted version The authors would like to thank the Agency for Science, Technology and Research (A*STAR) of Singapore (SERC 1528000048) for funding. We also thank Dr. Xin Zhao for the FESEM morphology observation. 2020-08-19T05:27:00Z 2020-08-19T05:27:00Z 2019 Journal Article Zheng, S., Bellido-Aguilar, D. A., Wu, X., Zhan, X., Huang, Y., Zeng, X., . . . Chen, Z. (2018). Durable waterborne hydrophobic bio-epoxy coating with improved anti-icing and self-cleaning performance. ACS Sustainable Chemistry & Engineering, 7(1), 641-649. doi:10.1021/acssuschemeng.8b04203 2168-0485 https://hdl.handle.net/10356/143289 10.1021/acssuschemeng.8b04203 2-s2.0-85059673515 1 7 641 649 en ACS Sustainable Chemistry & Engineering This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Sustainable Chemistry & Engineering, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acssuschemeng.8b04203 application/pdf |
| spellingShingle | Engineering::Materials Waterborne Coatings Hydrophobic Zheng, Shunli Bellido-Aguilar, Daniel Angel Wu, Xinghua Zhan, Xuejun Huang, Yinjuan Zeng, Xianting Zhang, Qichun Chen, Zhong Durable waterborne hydrophobic bio-epoxy coating with improved anti-icing and self-cleaning performance |
| title | Durable waterborne hydrophobic bio-epoxy coating with improved anti-icing and self-cleaning performance |
| title_full | Durable waterborne hydrophobic bio-epoxy coating with improved anti-icing and self-cleaning performance |
| title_fullStr | Durable waterborne hydrophobic bio-epoxy coating with improved anti-icing and self-cleaning performance |
| title_full_unstemmed | Durable waterborne hydrophobic bio-epoxy coating with improved anti-icing and self-cleaning performance |
| title_short | Durable waterborne hydrophobic bio-epoxy coating with improved anti-icing and self-cleaning performance |
| title_sort | durable waterborne hydrophobic bio epoxy coating with improved anti icing and self cleaning performance |
| topic | Engineering::Materials Waterborne Coatings Hydrophobic |
| url | https://hdl.handle.net/10356/143289 |
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