通过构建能量消耗有机电子受体/无机填充剂来提高聚合物的电绝缘和热导率
Zhengdong Wang1, Ran Wang1, Meng Luo1
1School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
Small (Weinheim an der Bergstrasse, Germany)
|April 14, 2025
概括
一种新的"能量消散器"策略提高了材料中的电绝缘和热传输. 这种方法提高了电力设备包装的断裂强度和高温性能.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 聚合物科学 聚合物科学
背景情况:
- 同时提高材料的电绝缘和热传输是一个重大挑战.
- 现有材料在改善另一种性能时,往往会损害一种性能,限制在苛刻环境中的应用.
研究的目的:
- 制定一个协同战略,同时改善电绝缘和热传输.
- 创建一个新的"能量消耗器",以提高电力设备包装材料的性能.
主要方法:
- 修改无机氧化 (Al2O3) 填充剂与有机电子受体,1,4,5,8-纳夫他四碳酸 (NDA),以形成AO@NDA.
- 使用陷-屏障协同策略来限制载体的移动性和消散载体能量.
- NDA的分子设计,以提高能量消耗器的长期有效性和化学活性.
主要成果:
- AO@NDA 能量散热器显著改善了复合材料的电绝缘性能.
- 有15%重量%的复合材料AO@NDA实现了18.7kV mm-1的分解强度,与AO/SG相比增加了11.7%.
- 经过修改的复合材料由于增强的热稳定性和运输性能,显示出出色的高温电绝缘性能.
结论:
- 使用AO@NDA的陷屏障协同战略是增强电绝缘和热传输的有效方法.
- 这种方法为开发用于电力设备的先进包装材料提供了一种新的,可扩展的解决方案.
- 修改后的能量散热器显示出了对高性能应用的潜力,这些应用需要卓越的介电和热管理.
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