双马来酰亚胺树脂基电磁屏蔽复合膜的制备及性能研究

徐培韬; 陈源; 姚俊; 彭锐晖; 张旭阳

doi:10.19554/j.cnki.1001-3563.2025.17.005

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包装工程（技术栏目） ›› 2025, Vol. 46 ›› Issue (17) : 43-50. DOI: 10.19554/j.cnki.1001-3563.2025.17.005

轻质宽频电磁复合材料

双马来酰亚胺树脂基电磁屏蔽复合膜的制备及性能研究

徐培韬^a, 陈源^a, 姚俊^a, 彭锐晖^b, 张旭阳^a,*

作者信息 +

Preparation and Properties of Bismaleimide Resin-based Electromagnetic Shielding Composite Films

XU Peitao^a, CHEN Yuan^a, YAO Jun^a, PENG Ruihui^b, ZHANG Xuyang^a,*

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文章历史 +

摘要

目的研发具有优良力学性能、耐热性能及电磁屏蔽性能的轻质电磁屏蔽复合膜材料。方法以双马来酰亚胺树脂（BMI）为树脂基体,以磁控溅射镀铜碳纳米管膜（CMF/Cu）为电磁屏蔽功能层,通过热压复合方式制备具有三明治结构的BMI/CMF/Cu电磁屏蔽复合膜。结果复合膜在25 ℃至225 ℃内剪切强度大于10 MPa,并在200 ℃具有最高15.11 MPa的剪切强度,表明其在高温环境下仍能维持可靠的力学性能。同时在1~27 GHz内有42.63~48.54 dB的电磁屏蔽效能。结论 BMI/CMF/Cu三明治结构复合膜兼具优异的力学性能和宽频电磁屏蔽性能,其独特的结构设计和性能优势使其适合用作飞行器（包括飞机、无人机等）蒙皮或电子设备保护罩的电磁屏蔽功能层。

Abstract

The work aims to develop lightweight composite films with superior mechanical properties, heat resistance and electromagnetic shielding performance. In this study, bismaleimide resin (BMI) was used as the resin matrix, while a magnetron-sputtered copper-coated carbon nanotube film (CMF/Cu) was employed as the electromagnetic shielding functional layer. A sandwich-structured BMI/CMF/Cu electromagnetic shielding composite film was prepared through hot-press lamination. The shear strength of the composite film was greater than 10 MPa from 25 ℃ to 225 ℃, and it had a maximum shear strength of 15.11 MPa at 200 ℃, indicating reliable mechanical properties in high-temperature environments. Concurrently, its electromagnetic shielding effectiveness ranged from 42.63 to 48.54 dB within the frequency spectrum of 1-27 GHz. The BMI/CMF/Cu sandwich composite film has been demonstrated to exhibit both excellent mechanical properties and wideband electromagnetic shielding performance. Owing to its unique structural design and superior performance characteristics, this composite film is particularly well-suited for use as an electromagnetic shielding layer in aircraft skins (including airplanes and unmanned aerial vehicles) or as protective enclosures for electronic equipment.

导出引用

徐培韬, 陈源, 姚俊, 彭锐晖, 张旭阳. 双马来酰亚胺树脂基电磁屏蔽复合膜的制备及性能研究[J]. 包装工程（技术栏目）. 2025, 46(17): 43-50 https://doi.org/10.19554/j.cnki.1001-3563.2025.17.005

XU Peitao, CHEN Yuan, YAO Jun, PENG Ruihui, ZHANG Xuyang. Preparation and Properties of Bismaleimide Resin-based Electromagnetic Shielding Composite Films[J]. Packaging Engineering. 2025, 46(17): 43-50 https://doi.org/10.19554/j.cnki.1001-3563.2025.17.005

中图分类号： TB333

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