| Autor: |
Hao Yuan, Shixun Hu, Yao Zhou, Chao Yuan, Wenbo Song, Qing Shao, Hongwei Shi, Juan Li, Jun Hu, Qi Li, Jinliang He |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
CSEE Journal of Power and Energy Systems, Vol 10, Iss 1, Pp 361-370 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2096-0042 |
| DOI: |
10.17775/CSEEJPES.2021.00850 |
| Popis: |
Polypropylene (PP) is considered to be a rather promising material for HVDC cable insulation. Grafting modi-fication has proved to be an effective method on the electrical property improvements of PP. This paper reports on the highly-enhanced electrical properties of styrene-grafted polypropylene (PP-g-St) and their related mechanism. The influence of grafting styrene on crystallization structures, thermal properties and electrical properties of PP-g-St are characterized and analyzed. These results show that PP-g-St exhibits remarkably enhanced DC volume resistivity, suppressed space charge accumulation and improved DC breakdown strengths as compared to PP. Crystallization observation shows PP-g-St has small, imperfect spherulites with indistinct boundaries, which is strongly correlated to enhanced electrical properties. This study provides an effective grafting strategy to design high-performance HVDC cable insulation materials for bulk power transmission systems. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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