一种可调节的多孔石墨/胺泡,用于导热,吸声和吸收电磁波
Zijing Li1, Limin Zhang1, Hongjing Wu1
1MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, China.
Small (Weinheim an der Bergstrasse, Germany)
|November 5, 2023
概括
一种新的柔性石墨/胺泡 (CMF) 集成电磁波吸收 (EWA),导热和声音吸收. 这种具有成本效益,可扩展的材料为通信基站和服务器提供了强大的保护.
科学领域:
- 材料科学 材料科学 材料科学
- 电磁学 电磁学 电磁学 电磁学
- 声学 声学 在声学上
背景情况:
- 现有的电磁波吸收 (EWA) 材料主要作为涂层起作用,限制了它们在复杂的电子系统中的应用.
- 使用简单的方法将EWA,热管理和声控等多种功能集成到单一的,稳定的材料中仍然是一个重大挑战.
- 通信基站和服务器需要先进的材料来减轻电磁干扰 (EMI) 和噪音污染.
研究的目的:
- 开发一种集电磁波吸收 (EWA),导热和吸声能力的多功能材料.
- 通过简单且可扩展的制造工艺,解决创建稳定,多功能材料的挑战.
- 为通信基站,服务器和芯片保护中的应用提供了传统EWA涂层的有希望的替代品.
主要方法:
- 使用多元组分有机物和石墨粉末的通用组合工艺合成泡型微波吸收装置.
- 使用胺作为骨架和甲胺作为凝固化合物,嵌入石墨形成3D导电网络.
- 材料的电磁波吸收 (EWA),导热率,声音吸收和机械性能的表征.
主要成果:
- 柔性石墨/胺泡 (CMF) 实现了优异的EWA性能,有效吸收带宽为9.8GHz,超薄厚度为2.60mm,反射损失为-41.7dB.
- 由于CMF的多孔性和灵活性,它具有显著的吸声能力.
- 该材料展示了集成的EWA,传热,吸声和机械强度,通过成本效益和可扩展的方法生产.
结论:
- 开发的CMF成功地集成了多种功能,为传统EWA涂层提供了更优质的替代方案.
- 该材料独特的特性组合和可扩展的制造工艺使其非常适合先进的电子应用.
- CMF为提高通信基站,服务器和电子元件的性能和可靠性提供了一个有前途的解决方案.
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