Influence of Bismaleimide HVA-2 Grafting on the Direct Current Dielectric Properties of XLPE
In this paper, N, N’-m-phenylene dimaleimide (HVA-2) grafted crosslinked polyethylene (XLPE) insulation materials with different HVA-2 contents were prepared. The grafting, crosslinking, and crystalline structure were characterized by Fourier-transform infrared spectroscopy (FTIR), Soxhlet extractio...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/1/302 |
| _version_ | 1797625930622959616 |
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| author | Chengcheng Zhang Sen Wang Hong Zhao Xuan Wang |
| author_facet | Chengcheng Zhang Sen Wang Hong Zhao Xuan Wang |
| author_sort | Chengcheng Zhang |
| collection | DOAJ |
| description | In this paper, N, N’-m-phenylene dimaleimide (HVA-2) grafted crosslinked polyethylene (XLPE) insulation materials with different HVA-2 contents were prepared. The grafting, crosslinking, and crystalline structure were characterized by Fourier-transform infrared spectroscopy (FTIR), Soxhlet extraction, and differential scanning calorimetry (DSC), respectively. The space charge distribution, direct current (DC) breakdown strength, and DC conduction current density were tested and the electronic structure was calculated from first-principles. HVA-2 grafting modification can significantly reduce the accumulation of space charges and the conduction current density of XLPE, but have a negative effect on DC breakdown strength. The polar groups of the grafted HVA-2 anchored on XLPE by the grafting reaction can introduce deep traps densely and evenly in XLPE, which would capture and scatter charge carriers, thus reducing the carrier concentration and mobility and further improving the space charge distribution and reducing conduction current density. However, the grafting of HVA-2 can increase the crosslinking extent of XLPE to make the crystallinity decrease and the crystallization inhomogeous, leading to a certain decrease in the breakdown strength of the grafted XLPE. |
| first_indexed | 2024-03-11T10:03:27Z |
| format | Article |
| id | doaj.art-f2a2711a935b42528005dbe3a470df45 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T10:03:27Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-f2a2711a935b42528005dbe3a470df452023-11-16T15:17:19ZengMDPI AGEnergies1996-10732022-12-0116130210.3390/en16010302Influence of Bismaleimide HVA-2 Grafting on the Direct Current Dielectric Properties of XLPEChengcheng Zhang0Sen Wang1Hong Zhao2Xuan Wang3Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, ChinaKey Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, ChinaKey Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, ChinaKey Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, ChinaIn this paper, N, N’-m-phenylene dimaleimide (HVA-2) grafted crosslinked polyethylene (XLPE) insulation materials with different HVA-2 contents were prepared. The grafting, crosslinking, and crystalline structure were characterized by Fourier-transform infrared spectroscopy (FTIR), Soxhlet extraction, and differential scanning calorimetry (DSC), respectively. The space charge distribution, direct current (DC) breakdown strength, and DC conduction current density were tested and the electronic structure was calculated from first-principles. HVA-2 grafting modification can significantly reduce the accumulation of space charges and the conduction current density of XLPE, but have a negative effect on DC breakdown strength. The polar groups of the grafted HVA-2 anchored on XLPE by the grafting reaction can introduce deep traps densely and evenly in XLPE, which would capture and scatter charge carriers, thus reducing the carrier concentration and mobility and further improving the space charge distribution and reducing conduction current density. However, the grafting of HVA-2 can increase the crosslinking extent of XLPE to make the crystallinity decrease and the crystallization inhomogeous, leading to a certain decrease in the breakdown strength of the grafted XLPE.https://www.mdpi.com/1996-1073/16/1/302crosslinked polyethylenegraftingspace chargebreakdowndeep traps |
| spellingShingle | Chengcheng Zhang Sen Wang Hong Zhao Xuan Wang Influence of Bismaleimide HVA-2 Grafting on the Direct Current Dielectric Properties of XLPE Energies crosslinked polyethylene grafting space charge breakdown deep traps |
| title | Influence of Bismaleimide HVA-2 Grafting on the Direct Current Dielectric Properties of XLPE |
| title_full | Influence of Bismaleimide HVA-2 Grafting on the Direct Current Dielectric Properties of XLPE |
| title_fullStr | Influence of Bismaleimide HVA-2 Grafting on the Direct Current Dielectric Properties of XLPE |
| title_full_unstemmed | Influence of Bismaleimide HVA-2 Grafting on the Direct Current Dielectric Properties of XLPE |
| title_short | Influence of Bismaleimide HVA-2 Grafting on the Direct Current Dielectric Properties of XLPE |
| title_sort | influence of bismaleimide hva 2 grafting on the direct current dielectric properties of xlpe |
| topic | crosslinked polyethylene grafting space charge breakdown deep traps |
| url | https://www.mdpi.com/1996-1073/16/1/302 |
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