Polymer Infused Porous Surfaces for Robust, Thermally Conductive, Self-Healing Coatings for Dropwise Condensation
© 2020 American Chemical Society. Hydrophobic coatings with low thermal resistance promise a significant enhancement in condensation heat transfer performance by promoting dropwise condensation in applications including power generation, water treatment, and thermal management of high-performance el...
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| Format: | Article |
| Language: | English |
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American Chemical Society (ACS)
2022
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| Online Access: | https://hdl.handle.net/1721.1/142055 |
| _version_ | 1826212174809268224 |
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| author | Wilke, Kyle L Antao, Dion S Cruz, Samuel Iwata, Ryuichi Zhao, Yajing Leroy, Arny Preston, Daniel J Wang, Evelyn N |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Wilke, Kyle L Antao, Dion S Cruz, Samuel Iwata, Ryuichi Zhao, Yajing Leroy, Arny Preston, Daniel J Wang, Evelyn N |
| author_sort | Wilke, Kyle L |
| collection | MIT |
| description | © 2020 American Chemical Society. Hydrophobic coatings with low thermal resistance promise a significant enhancement in condensation heat transfer performance by promoting dropwise condensation in applications including power generation, water treatment, and thermal management of high-performance electronics. However, after nearly a century of research, coatings with adequate robustness remain elusive due to the extreme environments within many condensers and strict design requirements needed to achieve enhancement. In this work, we enable long-lasting condensation heat transfer enhancement via dropwise condensation by infusing a hydrophobic polymer, Teflon AF, into a porous nanostructured surface. This polymer infused porous surface (PIPS) uses the large surface area of the nanostructures to enhance polymer adhesion, while the nanostructures form a percolated network of high thermal conductivity material throughout the polymer and drastically reduce the thermal resistance of the composite. We demonstrate over 700% enhancement in the condensation of steam compared to an uncoated surface. This performance enhancement was sustained for more than 200 days without significant degradation. Furthermore, we show that the surfaces are self-repairing upon raising the temperature past the melting point of the polymer, allowing recovery of hydrophobicity and offering a level of durability more appropriate for industrial applications. |
| first_indexed | 2024-09-23T15:17:31Z |
| format | Article |
| id | mit-1721.1/142055 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:17:31Z |
| publishDate | 2022 |
| publisher | American Chemical Society (ACS) |
| record_format | dspace |
| spelling | mit-1721.1/1420552023-02-09T21:39:02Z Polymer Infused Porous Surfaces for Robust, Thermally Conductive, Self-Healing Coatings for Dropwise Condensation Wilke, Kyle L Antao, Dion S Cruz, Samuel Iwata, Ryuichi Zhao, Yajing Leroy, Arny Preston, Daniel J Wang, Evelyn N Massachusetts Institute of Technology. Department of Mechanical Engineering © 2020 American Chemical Society. Hydrophobic coatings with low thermal resistance promise a significant enhancement in condensation heat transfer performance by promoting dropwise condensation in applications including power generation, water treatment, and thermal management of high-performance electronics. However, after nearly a century of research, coatings with adequate robustness remain elusive due to the extreme environments within many condensers and strict design requirements needed to achieve enhancement. In this work, we enable long-lasting condensation heat transfer enhancement via dropwise condensation by infusing a hydrophobic polymer, Teflon AF, into a porous nanostructured surface. This polymer infused porous surface (PIPS) uses the large surface area of the nanostructures to enhance polymer adhesion, while the nanostructures form a percolated network of high thermal conductivity material throughout the polymer and drastically reduce the thermal resistance of the composite. We demonstrate over 700% enhancement in the condensation of steam compared to an uncoated surface. This performance enhancement was sustained for more than 200 days without significant degradation. Furthermore, we show that the surfaces are self-repairing upon raising the temperature past the melting point of the polymer, allowing recovery of hydrophobicity and offering a level of durability more appropriate for industrial applications. 2022-04-25T16:17:37Z 2022-04-25T16:17:37Z 2020 2022-04-25T15:45:40Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142055 Wilke, Kyle L, Antao, Dion S, Cruz, Samuel, Iwata, Ryuichi, Zhao, Yajing et al. 2020. "Polymer Infused Porous Surfaces for Robust, Thermally Conductive, Self-Healing Coatings for Dropwise Condensation." ACS Nano, 14 (11). en 10.1021/ACSNANO.0C03961 ACS Nano Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf American Chemical Society (ACS) Prof. Evelyn Wang |
| spellingShingle | Wilke, Kyle L Antao, Dion S Cruz, Samuel Iwata, Ryuichi Zhao, Yajing Leroy, Arny Preston, Daniel J Wang, Evelyn N Polymer Infused Porous Surfaces for Robust, Thermally Conductive, Self-Healing Coatings for Dropwise Condensation |
| title | Polymer Infused Porous Surfaces for Robust, Thermally Conductive, Self-Healing Coatings for Dropwise Condensation |
| title_full | Polymer Infused Porous Surfaces for Robust, Thermally Conductive, Self-Healing Coatings for Dropwise Condensation |
| title_fullStr | Polymer Infused Porous Surfaces for Robust, Thermally Conductive, Self-Healing Coatings for Dropwise Condensation |
| title_full_unstemmed | Polymer Infused Porous Surfaces for Robust, Thermally Conductive, Self-Healing Coatings for Dropwise Condensation |
| title_short | Polymer Infused Porous Surfaces for Robust, Thermally Conductive, Self-Healing Coatings for Dropwise Condensation |
| title_sort | polymer infused porous surfaces for robust thermally conductive self healing coatings for dropwise condensation |
| url | https://hdl.handle.net/1721.1/142055 |
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