可回收的聚合物复合材料具有纹的核心外结构,可提供高效的EMI屏蔽和低反射
Jing Chen1,2, Yang Zhang2, Haorong Li3
1School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China.
ACS applied materials & interfaces
|May 2, 2024
概括
本研究介绍了一种用于电磁干扰 (EMI) 屏蔽的新型复合材料. 该材料表现出高屏蔽效率和可回收性,为先进的EMI屏蔽应用提供了有前途的解决方案.
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:
- 开发具有高效率,低反射和可回收的绿色电磁干扰 (EMI) 屏蔽材料是一项挑战.
- 现有的材料往往难以平衡这些关键性质.
研究的目的:
- 创建一种新的可回收复合材料,用于有效的EMI屏蔽.
- 研究微观结构和湿度对屏蔽性能的影响.
主要方法:
- 一种聚烯胺 (PAM) 复合物与化学交联的PAM@碳纳米管 (cPAM@CNT) 核心外颗粒使用吸附-干燥-收缩策略进行了合成.
- 复合材料具有纹的微观结构,用于电磁波减弱.
- 评估了湿度对屏蔽性能的影响.
主要成果:
- 由于其纹的微观结构,复合材料在X频段实现了平均EMI屏蔽效率 (SE) 67.5dB.
- 暴露在91%的相对湿度下,平均EMI SE增加到83.2dB,反射率低 (2.7dB).
- 该材料表现出卓越的朱尔加热,光热性能和可回收性.
结论:
- 开发的PAM复合材料为EMI屏蔽提供了高性能,绿色和可回收的解决方案.
- 该材料独特的微观结构和湿透性质有助于其卓越的屏蔽效果.
- 这项工作显示了先进的EMI屏蔽应用的重大前景.
相关概念视频
02:34Polymers
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...
02:34Polymers
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...
02:34Polymers
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...