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织规模的液体金属纤维具有应变不变的导电性,可实现吸收增强的EMI屏蔽

Ruosong Li¹, Ruyi Tao¹, Youpeng Huangfu²

¹School of Chemical Engineering, Northwest University, Xi'an, 710127, People's Republic of China.

Nano-micro letters

|March 12, 2026

概括

研究人员开发了磁性液态金属 (MLM) 纤维,用于先进的软电子. 这些可伸缩,导电性织品提供抗应变性,可调节的加热和电磁干扰屏蔽.

科学领域:

材料科学材料科学材料科学
软电子是软电子的产品之一.
导电复合材料导电复合材料

背景情况:

传统的导电复合材料在应力下降解.
液体金属 (LMs) 具有独特的导电性和流体性质.
在软电子产品中需要坚固,可拉伸的导电材料.

研究的目的:

开发使用磁性液体金属 (MLM) 的新型芯纤维,用于增强软电子应用.
为了研究MLM/TPU复合材料的导电性,伸展性和延伸不变性.
探索可调节加热,红外隐形和电磁干扰 (EMI) 屏蔽的应用.

主要方法:

具有磁性LM (Fe-EGaIn) 芯的热塑性聚氨 (TPU) 盖芯纤维的同轴湿.
将MLM/TPU纤维编织成交织的织品.
结后的压力激活以形成透导电网络.

主要成果:

实现了异常导电性 (3.9 × 104 S m-1) 和极端伸展性 (482%的延长).
证明了对菌株不变的耐药性 (在100%的菌株下为-6%).
显示可调节的焦勒加热 (高达75.8°C),红外隐形和显著的EMI屏蔽 (33.82dB).

结论:

开发的MLM/TPU复合纤维为高性能软电子提供了一个有前途的平台.
这些材料使磁性响应,可重新配置的导体具有多种功能.
潜在的应用包括可穿戴电子产品,软机器人和先进的EMI屏蔽织品.

关键词:

电磁干扰屏蔽电磁干扰屏蔽灵活的导电纤维纤维是一种灵活的导电纤维.焦力加热焦力加热磁性液体金属是一种磁性液体金属.

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