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由于电气跟踪而导致的的表面结构变化

Harpreet Kaur1, Kavin Bhuvan1,2, Rajkumar Padmawar2

  • 1Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada.

Applied spectroscopy
|March 19, 2024
PubMed
概括
此摘要是机器生成的。

研究了在电压下复合材料绝缘体的降解. 光谱分析揭示了功能组和表面性质的变化,为电网的材料故障机制提供了洞察力.

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在 2D-COS 中.在ATR的FT-IR中,皮的是一种.减弱的总反射 里埃变换 红外光谱学电气绝缘器是一种电气绝缘器.追踪 追踪 追踪 追踪二维相关性光谱学二维相关性光谱学

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科学领域:

  • 材料科学 材料科学 材料科学
  • 电气工程 电气工程
  • 聚合物化学 聚合物化学

背景情况:

  • 复合材料绝缘体对于电力传输和分配至关重要.
  • 这些绝缘体在运行电气和环境压力下降解.
  • 了解退化机制是防止电网故障的关键.

研究的目的:

  • 调查复合绝缘体中的降解机制.
  • 为了将材料结构变化与电气跟踪相关联.
  • 提供有关电力系统潜在故障的见解.

主要方法:

  • 使用了减弱总反射里埃变换红外光谱法 (ATR-FTIR).
  • 二维相关谱 (2D-COS) 分析了光谱变化.
  • 接触角度测量评估了表面特性.

主要成果:

  • 通过ATR-FTIR检测,Si-O-Si,甲基,Al-O和基组的吸收性降低,并且具有跟踪周期.
  • 2D-COS确定了降解序列:Al-O/OH,然后是Si-O-Si骨干,其次是甲基侧链.
  • 接触角度随着跟踪周期的增加而增加,表明表面粗度增加.

结论:

  • 电气跟踪改变了复合材料绝缘体的化学结构.
  • 降解过程影响无机填充剂和有机聚合物组件.
  • 表面变化,包括粗度,与电跟踪和材料降解有关.