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The Influence of Titanium Dioxide Nanosheet on Water Permeability of Silicone Rubber after Nitrogen Dioxide Aging Treatment
In this study, the aging process of a surface-functional titanium dioxide nanosheet (f-TNS) composited room-temperature-vulcanized silicone rubber (RTV) composite coating was simulated in a NO(2) generation device, and then the electrochemical impedance spectroscopy (EIS) of the aged composite coati...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10672160/ https://www.ncbi.nlm.nih.gov/pubmed/38005068 http://dx.doi.org/10.3390/ma16227138 |
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author | Peng, Xiangyang Zhang, Jinshuai Fang, Jiapeng Wang, Zheng Huang, Zhen Kuang, Shilong He, Chunqing |
author_facet | Peng, Xiangyang Zhang, Jinshuai Fang, Jiapeng Wang, Zheng Huang, Zhen Kuang, Shilong He, Chunqing |
author_sort | Peng, Xiangyang |
collection | PubMed |
description | In this study, the aging process of a surface-functional titanium dioxide nanosheet (f-TNS) composited room-temperature-vulcanized silicone rubber (RTV) composite coating was simulated in a NO(2) generation device, and then the electrochemical impedance spectroscopy (EIS) of the aged composite coating was tested in a 3.5% NaCl solution. The water permeation process was analyzed by the changes in the impedance modulus, porosity, and breakpoint frequency of the composite coating. The experimental results show that the water permeability of aged RTV decreases first and then increases with the increase in the composite proportion of f-TNS. When the composite proportion of TNS was 0.3 wt.%, the composite sample had the minimum water permeability and the best resistance to NO(2) corrosion. The effect of TNS on the NO(2) aging resistance of RTV composites and its mechanism were studied by SEM, FT-IR, and XPS. The impedance modulus and porosity of the aged 0.3% f-TNS/RTV, respectively, were 1.82 × 10(7) Ω cm(2) and 0.91 × 10(−4)%, which increased by 2.23 times and decreased by 0.37 times, respectively, compared with the values of aged pure RTV sample. In addition, the breakpoint frequency of the aged 0.3% f-TNS/RTV also significantly reduced to 11.3 Hz, whereas it was 35 Hz in aged pure RTV. |
format | Online Article Text |
id | pubmed-10672160 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-106721602023-11-12 The Influence of Titanium Dioxide Nanosheet on Water Permeability of Silicone Rubber after Nitrogen Dioxide Aging Treatment Peng, Xiangyang Zhang, Jinshuai Fang, Jiapeng Wang, Zheng Huang, Zhen Kuang, Shilong He, Chunqing Materials (Basel) Article In this study, the aging process of a surface-functional titanium dioxide nanosheet (f-TNS) composited room-temperature-vulcanized silicone rubber (RTV) composite coating was simulated in a NO(2) generation device, and then the electrochemical impedance spectroscopy (EIS) of the aged composite coating was tested in a 3.5% NaCl solution. The water permeation process was analyzed by the changes in the impedance modulus, porosity, and breakpoint frequency of the composite coating. The experimental results show that the water permeability of aged RTV decreases first and then increases with the increase in the composite proportion of f-TNS. When the composite proportion of TNS was 0.3 wt.%, the composite sample had the minimum water permeability and the best resistance to NO(2) corrosion. The effect of TNS on the NO(2) aging resistance of RTV composites and its mechanism were studied by SEM, FT-IR, and XPS. The impedance modulus and porosity of the aged 0.3% f-TNS/RTV, respectively, were 1.82 × 10(7) Ω cm(2) and 0.91 × 10(−4)%, which increased by 2.23 times and decreased by 0.37 times, respectively, compared with the values of aged pure RTV sample. In addition, the breakpoint frequency of the aged 0.3% f-TNS/RTV also significantly reduced to 11.3 Hz, whereas it was 35 Hz in aged pure RTV. MDPI 2023-11-12 /pmc/articles/PMC10672160/ /pubmed/38005068 http://dx.doi.org/10.3390/ma16227138 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Peng, Xiangyang Zhang, Jinshuai Fang, Jiapeng Wang, Zheng Huang, Zhen Kuang, Shilong He, Chunqing The Influence of Titanium Dioxide Nanosheet on Water Permeability of Silicone Rubber after Nitrogen Dioxide Aging Treatment |
title | The Influence of Titanium Dioxide Nanosheet on Water Permeability of Silicone Rubber after Nitrogen Dioxide Aging Treatment |
title_full | The Influence of Titanium Dioxide Nanosheet on Water Permeability of Silicone Rubber after Nitrogen Dioxide Aging Treatment |
title_fullStr | The Influence of Titanium Dioxide Nanosheet on Water Permeability of Silicone Rubber after Nitrogen Dioxide Aging Treatment |
title_full_unstemmed | The Influence of Titanium Dioxide Nanosheet on Water Permeability of Silicone Rubber after Nitrogen Dioxide Aging Treatment |
title_short | The Influence of Titanium Dioxide Nanosheet on Water Permeability of Silicone Rubber after Nitrogen Dioxide Aging Treatment |
title_sort | influence of titanium dioxide nanosheet on water permeability of silicone rubber after nitrogen dioxide aging treatment |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10672160/ https://www.ncbi.nlm.nih.gov/pubmed/38005068 http://dx.doi.org/10.3390/ma16227138 |
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