Moisture Absorption Characteristics of Nanoparticle-Doped Silicone Rubber and Its Influence Mechanism on Electrical Properties
To further explore the long-term stability of nano-dielectrics, experiments were carried out to investigate the moisture absorption characteristics and electrical properties of silicone rubber (SiR) doped with different inorganic nanoparticles. Thermogravimetric analysis (TGA) is utilized to researc...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/9/1474 |
| _version_ | 1797535393631961088 |
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| author | Xiaoqian Zhu Yunxiao Zhang Yuanxiang Zhou Xin Huang |
| author_facet | Xiaoqian Zhu Yunxiao Zhang Yuanxiang Zhou Xin Huang |
| author_sort | Xiaoqian Zhu |
| collection | DOAJ |
| description | To further explore the long-term stability of nano-dielectrics, experiments were carried out to investigate the moisture absorption characteristics and electrical properties of silicone rubber (SiR) doped with different inorganic nanoparticles. Thermogravimetric analysis (TGA) is utilized to research the moisture absorption characteristics including mass fraction and binding forms. The trap depth and electron orbitals are calculated by density functional theory to explain the influence mechanism of water molecules on SiR. It is found that the addition of nanoparticles will increase the moisture content of SiR. Additionally, the nano-TiO<sub>2</sub>-doped SiR absorbs more water and binds with water relatively more loosely than nano-Al<sub>2</sub>O<sub>3</sub>. There is a degradation of space charge inhibition capability and breakdown strength after moisture absorption, which might be explained by shallow traps brought by water molecules and the narrowed forbidden bandwidth of SiR. |
| first_indexed | 2024-03-10T11:44:48Z |
| format | Article |
| id | doaj.art-ec9641869ff54f7d8a29ad7656dc194f |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T11:44:48Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-ec9641869ff54f7d8a29ad7656dc194f2023-11-21T18:14:20ZengMDPI AGPolymers2073-43602021-05-01139147410.3390/polym13091474Moisture Absorption Characteristics of Nanoparticle-Doped Silicone Rubber and Its Influence Mechanism on Electrical PropertiesXiaoqian Zhu0Yunxiao Zhang1Yuanxiang Zhou2Xin Huang3State Key Laboratory of Power System and Generation Equipment & Department of Electrical Engineering, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Power System and Generation Equipment & Department of Electrical Engineering, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Power System and Generation Equipment & Department of Electrical Engineering, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Power System and Generation Equipment & Department of Electrical Engineering, Tsinghua University, Beijing 100084, ChinaTo further explore the long-term stability of nano-dielectrics, experiments were carried out to investigate the moisture absorption characteristics and electrical properties of silicone rubber (SiR) doped with different inorganic nanoparticles. Thermogravimetric analysis (TGA) is utilized to research the moisture absorption characteristics including mass fraction and binding forms. The trap depth and electron orbitals are calculated by density functional theory to explain the influence mechanism of water molecules on SiR. It is found that the addition of nanoparticles will increase the moisture content of SiR. Additionally, the nano-TiO<sub>2</sub>-doped SiR absorbs more water and binds with water relatively more loosely than nano-Al<sub>2</sub>O<sub>3</sub>. There is a degradation of space charge inhibition capability and breakdown strength after moisture absorption, which might be explained by shallow traps brought by water molecules and the narrowed forbidden bandwidth of SiR.https://www.mdpi.com/2073-4360/13/9/1474silicone rubbermoisture absorptionspace chargeTGAinterface |
| spellingShingle | Xiaoqian Zhu Yunxiao Zhang Yuanxiang Zhou Xin Huang Moisture Absorption Characteristics of Nanoparticle-Doped Silicone Rubber and Its Influence Mechanism on Electrical Properties Polymers silicone rubber moisture absorption space charge TGA interface |
| title | Moisture Absorption Characteristics of Nanoparticle-Doped Silicone Rubber and Its Influence Mechanism on Electrical Properties |
| title_full | Moisture Absorption Characteristics of Nanoparticle-Doped Silicone Rubber and Its Influence Mechanism on Electrical Properties |
| title_fullStr | Moisture Absorption Characteristics of Nanoparticle-Doped Silicone Rubber and Its Influence Mechanism on Electrical Properties |
| title_full_unstemmed | Moisture Absorption Characteristics of Nanoparticle-Doped Silicone Rubber and Its Influence Mechanism on Electrical Properties |
| title_short | Moisture Absorption Characteristics of Nanoparticle-Doped Silicone Rubber and Its Influence Mechanism on Electrical Properties |
| title_sort | moisture absorption characteristics of nanoparticle doped silicone rubber and its influence mechanism on electrical properties |
| topic | silicone rubber moisture absorption space charge TGA interface |
| url | https://www.mdpi.com/2073-4360/13/9/1474 |
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