Effect of nanostructured SiO2 on charge capture performance and electrical ageing life of PP nanocomposites

IF 4.4 2区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
High Voltage Pub Date : 2024-12-23 DOI:10.1049/hve2.12509
Junguo Gao, Liwei Liu, Guangwei Zhang, Tingtai Lee, Uwe Schachtely, Hitoshi Kobayashi
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Abstract

To guarantee the reliability of high-performance and environmentally friendly novel polypropylene (PP) for use as the primary insulation in cables, an assessment of the electrical ageing life of SiO2/PP composite materials was carried out using a step-stress accelerated ageing test based on the inverse power law. The study involved an analysis of microstructural characteristics and performance testing to investigate the bonding between the SiO2 under different surface treatment methods and matrixes. Furthermore, the impact of SiO2 on charge capture performance in PP insulation was analysed through polarisation–depolarisation current testing. The results show that silica with long alkane chains and amino groups grafted on the surface has good compatibility with PP insulating layers, which can increase the trap energy level of captured electrons and thus reduce the damage of high-energy electrons to the composites. SiO2 increased the life index of the PP insulating layer by 19.95%, which contributed to the improvement of the electrical ageing life of the PP insulating layer.

Abstract Image

纳米SiO2对PP纳米复合材料电荷捕获性能和电老化寿命的影响
为保证高性能环保新型聚丙烯(PP)作为电缆初级绝缘材料的可靠性,采用基于幂次反比律的阶跃应力加速老化试验对SiO2/PP复合材料的电老化寿命进行了评估。本研究通过分析SiO2在不同表面处理方式和基体下的微观组织特征和性能测试,研究了SiO2在不同表面处理方式下与基体之间的结合。此外,通过极化-去极化电流测试,分析了SiO2对PP绝缘中电荷捕获性能的影响。结果表明,表面接枝长链和氨基的二氧化硅与PP绝缘层具有良好的相容性,可以提高捕获电子的捕获能级,从而降低高能电子对复合材料的损伤。SiO2使PP保温层的寿命指数提高了19.95%,有助于提高PP保温层的电老化寿命。
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来源期刊
High Voltage
High Voltage Energy-Energy Engineering and Power Technology
CiteScore
9.60
自引率
27.30%
发文量
97
审稿时长
21 weeks
期刊介绍: High Voltage aims to attract original research papers and review articles. The scope covers high-voltage power engineering and high voltage applications, including experimental, computational (including simulation and modelling) and theoretical studies, which include: Electrical Insulation ● Outdoor, indoor, solid, liquid and gas insulation ● Transient voltages and overvoltage protection ● Nano-dielectrics and new insulation materials ● Condition monitoring and maintenance Discharge and plasmas, pulsed power ● Electrical discharge, plasma generation and applications ● Interactions of plasma with surfaces ● Pulsed power science and technology High-field effects ● Computation, measurements of Intensive Electromagnetic Field ● Electromagnetic compatibility ● Biomedical effects ● Environmental effects and protection High Voltage Engineering ● Design problems, testing and measuring techniques ● Equipment development and asset management ● Smart Grid, live line working ● AC/DC power electronics ● UHV power transmission Special Issues. Call for papers: Interface Charging Phenomena for Dielectric Materials - https://digital-library.theiet.org/files/HVE_CFP_ICP.pdf Emerging Materials For High Voltage Applications - https://digital-library.theiet.org/files/HVE_CFP_EMHVA.pdf
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