定制全碳电磁干扰屏蔽材料的接口,以提高全面的性能
Shengjie Li1,2, Chengqing Tang3,4, Yaoqieyu Song1,5
1School of Physical Science and Technology, Soochow University, Suzhou 215006, P. R. China.
ACS applied materials & interfaces
|February 26, 2024
概括
新的全碳复合材料提供优越的电磁干扰 (EMI) 屏蔽超过90dB. 这些轻量级的多功能材料最大限度地减少了二次污染,并显示出适用于要求高的电子系统的优良热性能.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 高性能电磁干扰 (EMI) 屏蔽材料对于集成电子系统至关重要,特别是在恶劣的环境中.
- 现有的材料往往面临着重量,屏蔽效率,化学稳定性和二次电磁污染的挑战.
- 迫切需要先进的EMI屏蔽解决方案,这些解决方案是轻量级的,高效的和对环境无害的.
研究的目的:
- 通过优化接口特性来设计和建造多功能全碳EMI屏蔽材料.
- 研究这些新型复合材料的EMI屏蔽效果,二次电磁污染和热性能.
- 阐明材料接口与复合EMI屏蔽应用中的整体性能之间的关系.
主要方法:
- 系统工程和各种碳基膜 (石墨纸,WCNT纸,CNT薄膜,bucky纸,碳布) 和3D多孔碳纳米管海绵 (CNTS) 之间的接口特性匹配.
- 全碳复合材料 (CMC) 的制造.
- 关于EMI屏蔽效率,二次电磁反射,光热和朱尔加热性能的表征.
主要成果:
- 成功建造了一系列多功能全碳EMI屏蔽材料.
- 在大约1毫米的厚度下,达到超过90dB的优异平均屏蔽效率.
- 显著减少了二次电磁反射,表明污染减少.
- 由于全碳的性质和工程界面,它表现出了出色的光热和朱尔加热性能.
结论:
- 开发的全碳复合材料为要求高的应用中高性能EMI屏蔽提供了有希望的解决方案.
- 优化接口特性是实现高屏蔽效率和最大限度地减少二次污染的关键.
- 这些材料提供了多功能功能,包括热性能,扩大了它们的潜在应用范围,超出了EMI屏蔽.
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