Inhibiting liquid permeation into silicone rubber by superhydrophobic coating for prolonged service life
Abstract Liquid permeation into silicone rubber (SR) may lead to the degradation or complete failure of the composite insulators. Aiming to inhibit liquid permeation, two kinds of superhydrophobic coatings are applied to the SR surface. The liquid permeation properties of SR with different types of...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-10-01
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| Series: | High Voltage |
| Online Access: | https://doi.org/10.1049/hve2.12328 |
| _version_ | 1797652532669972480 |
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| author | Shuming Liu Ying Zhou Zhou Zuo Shuqi Liu Qian Wang Zhong Chen Xidong Liang |
| author_facet | Shuming Liu Ying Zhou Zhou Zuo Shuqi Liu Qian Wang Zhong Chen Xidong Liang |
| author_sort | Shuming Liu |
| collection | DOAJ |
| description | Abstract Liquid permeation into silicone rubber (SR) may lead to the degradation or complete failure of the composite insulators. Aiming to inhibit liquid permeation, two kinds of superhydrophobic coatings are applied to the SR surface. The liquid permeation properties of SR with different types of liquids are investigated, and the Langmuir diffusion model is applied to analyse the experimental data. The results show that the composite superhydrophobic coating can effectively inhibit liquid permeation by reducing the contact area between the surface and liquid, and the stable structure of the composite coating can maintain the performance after the liquid permeation and effusion. However, the nano‐particle coating without the polymer binder experiences severe performance degradation during the immersion test, and it cannot restrain the liquid permeation anymore after it loses the superhydrophobicity. As a validation of the effective protection, the insulation resistivity change was measured. The resistivity decreases sharply for the pristine SR after water permeation; however, the decrease is much smaller for the coated SR. The current study not only provides new insight into the liquid permeation properties of SR with different surface wettability but also suggests an effective measure to prevent liquid permeation into SR. |
| first_indexed | 2024-03-11T16:31:15Z |
| format | Article |
| id | doaj.art-7c1ee47c0d37421f8914e979b20e76d4 |
| institution | Directory Open Access Journal |
| issn | 2397-7264 |
| language | English |
| last_indexed | 2024-03-11T16:31:15Z |
| publishDate | 2023-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | High Voltage |
| spelling | doaj.art-7c1ee47c0d37421f8914e979b20e76d42023-10-24T04:10:48ZengWileyHigh Voltage2397-72642023-10-018598699610.1049/hve2.12328Inhibiting liquid permeation into silicone rubber by superhydrophobic coating for prolonged service lifeShuming Liu0Ying Zhou1Zhou Zuo2Shuqi Liu3Qian Wang4Zhong Chen5Xidong Liang6State Key Laboratory of Control and Simulation of Power System and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing ChinaState Key Laboratory of Control and Simulation of Power System and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing ChinaState Key Laboratory of Control and Simulation of Power System and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing ChinaState Key Laboratory of Control and Simulation of Power System and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing ChinaState Key Laboratory of Control and Simulation of Power System and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing ChinaSchool of Material Science and Engineering Nanyang Technological University Singapore SingaporeState Key Laboratory of Control and Simulation of Power System and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing ChinaAbstract Liquid permeation into silicone rubber (SR) may lead to the degradation or complete failure of the composite insulators. Aiming to inhibit liquid permeation, two kinds of superhydrophobic coatings are applied to the SR surface. The liquid permeation properties of SR with different types of liquids are investigated, and the Langmuir diffusion model is applied to analyse the experimental data. The results show that the composite superhydrophobic coating can effectively inhibit liquid permeation by reducing the contact area between the surface and liquid, and the stable structure of the composite coating can maintain the performance after the liquid permeation and effusion. However, the nano‐particle coating without the polymer binder experiences severe performance degradation during the immersion test, and it cannot restrain the liquid permeation anymore after it loses the superhydrophobicity. As a validation of the effective protection, the insulation resistivity change was measured. The resistivity decreases sharply for the pristine SR after water permeation; however, the decrease is much smaller for the coated SR. The current study not only provides new insight into the liquid permeation properties of SR with different surface wettability but also suggests an effective measure to prevent liquid permeation into SR.https://doi.org/10.1049/hve2.12328 |
| spellingShingle | Shuming Liu Ying Zhou Zhou Zuo Shuqi Liu Qian Wang Zhong Chen Xidong Liang Inhibiting liquid permeation into silicone rubber by superhydrophobic coating for prolonged service life High Voltage |
| title | Inhibiting liquid permeation into silicone rubber by superhydrophobic coating for prolonged service life |
| title_full | Inhibiting liquid permeation into silicone rubber by superhydrophobic coating for prolonged service life |
| title_fullStr | Inhibiting liquid permeation into silicone rubber by superhydrophobic coating for prolonged service life |
| title_full_unstemmed | Inhibiting liquid permeation into silicone rubber by superhydrophobic coating for prolonged service life |
| title_short | Inhibiting liquid permeation into silicone rubber by superhydrophobic coating for prolonged service life |
| title_sort | inhibiting liquid permeation into silicone rubber by superhydrophobic coating for prolonged service life |
| url | https://doi.org/10.1049/hve2.12328 |
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