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关于MWCNT视角比对EMI屏蔽应用程序的buckypaper的处理和功能性质的影响

Thais Ferreira da Silva^1,2, Erick Gabriel Ribeiro Dos Anjos³, Thiély Ferreira da Silva³

¹School of Engineering, São Paulo State University (UNESP), Av. Dr. Ariberto Pereira da Cunha, 333 - Pedregulho, Guaratinguetá SP 12516-410, Brazil.

|March 2, 2026

概括

多壁碳纳米管 (MWCNTs) 的面积比显著影响buckypaper制造和电磁干扰 (EMI) 屏蔽. 较短的MWCNT产生的优越,轻量级的EMI屏蔽材料由于更好的可加工性和更高的电导率.

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:

碳纳米管 (CNT) 网络膜Buckypaper (BP) 显示了轻质电磁干扰 (EMI) 屏蔽的潜力.
CNT几何学对BP特性的影响需要进行系统的研究,以优化材料设计.

研究的目的:

调查多壁碳纳米管 (MWCNT) 面积比如何影响buckypaper处理,微观结构,电气和EMI屏蔽性能.
为了比较由短 (S-MWCNT) 和长 (L-MWCNT) MWCNTs制成的buckypapers的性能.

主要方法:

使用真空辅助过和没有聚烯二 (PAN) 祭祀地毯的布基纸的制造.
通过FEG-SEM,XRD,拉曼光谱,N2吸附,阻抗光谱和X频段EMI屏蔽测量进行表征.

主要成果:

S-MWCNTs形成了没有辅助的统一,灵活的书纸;L-MWCNTs需要牺牲.
与L-MWCNT buckypapers相比,S-MWCNT buckypapers的孔隙性和表面积 (高达205 m2.g-1) 更高.
S-MWCNT的布基纸显示出更高的电导率 (≈10-1 S.cm-1) 和出色的EMI屏蔽效率 (高达36dB).

结论:

MWCNT的尺寸比例是buckypaper可处理性和EMI屏蔽性能的一个关键因素.
优化MWCNT面积比是开发先进,轻量级EMI屏蔽材料的关键.
较短的MWCNT更适合用于高性能,易于处理的buckypaper EMI屏蔽应用.

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