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环氧/乙烯碳黑波浪吸收泡的制备和性能

Xiaoli Liu^1,2, Hao Huang^1,2, Haijun Lu^1,2

¹Composite Technology Center, AVIC Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 101300, China.

|April 27, 2024

概括

这项研究开发了带有乙烯碳黑的环氧泡,用于电磁波吸收. 与三卷相比,热产生了更好的吸收性能,在高频率下达到-9 dB.

科学领域:

材料科学材料科学材料科学
电磁波吸收方式电磁波吸收方式

背景情况:

环氧泡材料在吸收电磁波方面非常有效.
乙碳黑 (CB) 是一个有前途的磁吸剂,用于环氧矩阵.

研究的目的:

为了准备和描述用于吸收电磁波的环氧/CB泡材料.
为了研究预聚合时间和CB含量对泡结构的影响.
为了比较两个分散方法对泡特性和吸收的影响.

主要方法:

使用乙碳黑作为吸收剂制备环氧/CB泡.
描述CB微观结构,分布和泡结构的特征.
评估热在现场和三卷磨粉分散方法.
分析预聚合时间和CB含量对孔径大小和分布的影响.

主要成果:

长时间的预聚合减少了孔径大小,改善了分布.
三磨削增强了CB分散,但导致吸收较差 (-1dB高频). ) 的情况.
热混合改善了CB分散,并实现了更好的吸收 (-9 dB高频). ) 的情况.

结论:

环氧/CB泡材料显示了电磁波吸收的潜力.
分散方法显著影响泡结构和吸收特性.
在这种系统中,热现场是实现有效的电磁波吸收的优势.

关键词:

乙烯碳黑是一种碳黑.环氧环氧气体是什么?泡是一种泡.波浪的吸收波浪的吸收

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