量身定制的分子填料使全有机聚合物的高温绝缘和长期运行稳定性成为可能
Jie Li1, Boya Zhang1, Chenhao Jia1
1State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, China.
Small (Weinheim an der Bergstrasse, Germany)
|January 29, 2026
概括
用TU3有机分子对环氧树脂的分子工程显著提高了电绝缘. 这种用最小的填充剂实现的增强,提高了极端条件下的分解强度和长期稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 电气工程 电气工程
背景情况:
- 聚合物介电材料的一个关键挑战是控制电荷注入和传输.
- 有效的电绝缘对于高性能应用至关重要.
研究的目的:
- 开发一种分子工程策略,以提高聚合物介电材料的电绝缘性.
- 研究TU3有机分子作为环氧树脂 (EP) 的增强填充剂的使用.
主要方法:
- 合成的TU3有机分子具有子[1,2-c:4,5-c']bis([1,2,5]亚醇) 骨干和zwitterionic结构.
- 将TU3作为填充剂纳入环氧树脂 (EP) 中,以创建TU3/EP复合材料.
- 描述了复合材料的电气性能,包括分解强度和长期稳定性.
主要成果:
- TU3的引入在分子接口上产生了电荷陷,有效地抑制了电荷注入和传输.
- 仅仅0.02%重量的TU3使EP复合材料的分解强度在室温下提高了30.75%,在120°C时增加了52.28%.
- 在极端的热和电压下,TU3/EP复合材料表现出良好的长期运行稳定性.
结论:
- TU3的分子设计,具有静电相互作用和分子间电荷转移,成功地增强了电绝缘.
- 在苛刻的条件下,TU3/EP复合系统为高性能聚合物介电材料提供了一个有前途的解决方案.
- 这项研究为设计小型有机分子提供了一种新的方法,以提高聚合物介电性能.
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