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非对称的结构MXene/PBO气凝用于具有超低反射的高性能电磁干扰屏蔽

An Liu¹, Hua Qiu¹, Xinghan Lu²

¹Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China.

Advanced materials (Deerfield Beach, Fla.)

|December 4, 2024

概括

新的气凝结合了MXene和纳米纤维,可以提供优质的电磁干扰 (EMI) 屏蔽. 这些材料有效吸收和反射电磁波,为先进应用提供出色的保护和低反射率.

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:

电磁干扰 (EMI) 屏蔽材料对于阻断电磁辐射至关重要.
同时实现低反射率和优秀的EMI屏蔽是一项挑战.
需要多层结构来克服当前材料的局限性.

研究的目的:

开发具有增强EMI屏蔽性能的新型气凝.
创建具有低电磁波反射和高吸收特性的材料.
调查不对称结构性气凝对EMI屏蔽和红外伪装的潜力.

主要方法:

合成的纳米纤维 (PNF) 是聚二二二六比索.
MXene和异构结构MXene@Ni与PNF结合,形成吸收和反射层.
用一层一层的冷干燥来制造不对称的气凝: (MXene@Ni/PNF) - (MXene/PNF).

主要成果:

制造的气凝证明了电磁波的有效吸收-反射-再吸收.
最佳的气凝 (MXene:Ni比例为1:6:80重量%的MXene在反射层中) 实现了71dB的EMI屏蔽和0.10的反射系数.
有限元模拟证实了不对称结构的高EMI屏蔽和低反射特性.

结论:

开发的 (MXene@Ni/PNF) -MXene/PNF) 气凝提供了出色的EMI屏蔽性能,反射最小.
不对称的分层设计有效地实现了优越的电磁波管理.
这些气凝还表现出有希望的红外伪装能力.

关键词:

在PBO纳米纤维中.电磁干扰屏蔽电磁干扰屏蔽不同结构 MXene@Ni 红外伪装伪装红外伪装低反射低反射的时间

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