Highly conductive Cu-deposited basalt fiber fabric for high-performance electromagnetic interference shielding and Joule heating†

IF 6.4 2区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Anand Parkash, Abudukeremu Kadier and Peng-Cheng Ma
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Abstract

Addressing the escalating demand for lightweight, highly conductive, thin, large-area, and mechanically flexible materials with high electromagnetic interference (EMI) shielding effectiveness, alongside superior electrical and mechanical properties crucial for advanced wireless electronics and next-generation telecommunications (6G), we introduce a novel Cu-deposited basalt fiber fabric (BFF) fabricated via electroless Cu deposition across varying temperatures (room temperature to 60 °C). This material exhibits exceptional EMI shielding performance, achieving 81.7 dB in the X-band (8.2–12.4 GHz) at a minimal thickness of approximately 7.69 μm. Furthermore, it demonstrates significantly high electrical conductivity, reaching a peak of 4.81 × 105 S m−1, coupled with a low density of 3.08 g cm−3, substantially lighter than bulk Cu (8.96 g cm−3). The Cu-deposited BFF also possesses excellent mechanical properties, with breaking forces of 665 N (weft) and 3343 N (warp) achieved at the optimized deposition temperature of 50 °C, and superior Joule heating efficiency, reaching temperatures up to 136 °C at an applied voltage of 1.0 V. Integrating lightweight, high strength, thermal stability (up to 950 °C), and electrical conductivity, the Cu-deposited BFF presents itself as a sustainable and high-performance EMI shielding material with significant potential for scalable industrial applications.

Abstract Image

高导电铜沉积玄武岩纤维织物,用于高性能电磁干扰屏蔽和焦耳加热†
为了满足对轻质、高导电性、薄、大面积和机械柔性材料不断增长的需求,这些材料具有高电磁干扰(EMI)屏蔽效能,以及对先进无线电子设备和下一代电信(6G)至关重要的卓越电气和机械性能,我们推出了一种新型的Cu沉积玄武岩纤维织物(BFF),该纤维织物是通过化学Cu沉积在不同温度下(室温至60°C)制造的。该材料具有优异的电磁干扰屏蔽性能,在x波段(8.2-12.4 GHz),最小厚度约为7.69 μm时达到81.7 dB。此外,它还显示出显著的高导电性,峰值达到4.81 × 105 S m−1,同时具有3.08 g cm−3的低密度,比大块铜(8.96 g cm−3)轻得多。cu - BFF还具有优异的力学性能,在50℃的最佳沉积温度下可获得665 N(纬纱)和3343 N(经纱)的断裂力,在1.0 V的施加电压下可达到136℃的焦耳热效率。铜沉积BFF集轻质、高强度、热稳定性(高达950°C)和导电性于一体,是一种可持续的高性能EMI屏蔽材料,具有可扩展工业应用的巨大潜力。
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来源期刊
Materials Chemistry Frontiers
Materials Chemistry Frontiers Materials Science-Materials Chemistry
CiteScore
12.00
自引率
2.90%
发文量
313
期刊介绍: Materials Chemistry Frontiers focuses on the synthesis and chemistry of exciting new materials, and the development of improved fabrication techniques. Characterisation and fundamental studies that are of broad appeal are also welcome. This is the ideal home for studies of a significant nature that further the development of organic, inorganic, composite and nano-materials.
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