Study on finishing and electromagnetic properties of electromagnetic shielding fabric based on multilayer Ti3C2Tx medium

Wang, Xiuchen; Hang, Gege; Liu, Zhe; He, Sijia

doi:10.1080/00405000.2021.2010316

Cited by 7 publications

(4 citation statements)

References 43 publications

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“…The SE of the fabric sample can be calculated as (Wang et al ., 2022):Where, E 0 (V/m) is electric field strength of signal acceptance without fabric sample, E 1 (V/m) is electric field strength of signal acceptance with fabric sample.…”

Section: Methodsmentioning

confidence: 99%

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Effect of carbon nanotube fiber on shielding effectiveness of stainless-steel electromagnetic shielding fabric

Liu,

Yang,

Wang

2024

IJCST

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PurposeStainless-steel electromagnetic shielding (EMS) fabrics are widely applied as protective materials against electromagnetic interference (EMI). However, these fabrics primarily shield electromagnetic waves through reflection, which can lead to the formation of resonance effects that severely compromise their protective capabilities and potentially cause secondary electromagnetic pollution in the external environment.Design/methodology/approachIn this paper, carbon nanotube fibers are added via spacing method to replace some stainless-steel fibers to impart absorbing properties to stainless-steel EMS fabric. The shielding effectiveness (SE) of the EMS fabrics across various polarization directions is analyzed. Additionally, a spacing arrangement for the carbon nanotube fibers is designed. The EMS fabric with carbon nanotube fibers is manufactured using a semi-automatic sample loom, and its SE is tested using a small window method test box in both vertical and horizontal polarization directions.FindingsAccording to the experimental data and electromagnetic theory analysis, it is determined that when the spacing between the carbon nanotube fibers is less than a specific distance, the SE of the stainless-steel EMS fabric significantly improves. The fabric exhibits stable absorbing properties within the tested frequency range, effectively addressing the issue of secondary damage that arises from relying solely on reflective shielding. Conversely, as the spacing between the carbon nanotube fibers exceeds this distance, the SE diminishes. Notably, the SE in the vertical polarization direction is substantially higher than that in the horizontal polarization direction at the same frequency.Originality/valueThis study provides a new path for the development of high-performance EMS fabrics with good wave-absorption characteristics and SE.

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Section: Methodsmentioning

confidence: 99%

“…To avoid directional confusion, the yarns arranged in parallel are kept parallel to the ground, and only the angles of the emission and receiving horns are adjusted. The SE of the fabric sample can be calculated as (Wang et al, 2022):…”

Section: Ems Fabric Sample Designmentioning

confidence: 99%

Effect of carbon nanotube fiber on shielding effectiveness of stainless-steel electromagnetic shielding fabric

Liu,

Yang,

Wang

2024

IJCST

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“…Nonwovens are fabrics that are formed without spinning and weaving. They are simply textile staple fibers or filaments arranged in a directional or random pattern to form a fiber web structure, which is then reinforced by mechanical, thermal, or chemical means and can be used directly for clothing wear, and are part of the fabric part. , The interconnected fibers on the nonwoven can form a continuous conductive network with splendid isotropy, which provides an ideal template for the deposition of conductive materials. , Table summarizes the properties of MXene/nonwoven fabric composites.…”

Section: Mxene/fabric Compositesmentioning

confidence: 99%

Review of MXene Nanosheet Composites for Flexible Pressure Sensors

Hang

Wang

Zhang

et al. 2022

ACS Appl. Nano Mater.

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Recently, there has been a huge demand for flexible pressure sensors in various fields, including smart wearable textiles, health detection, and electronic skin. Flexible pressure sensors have been developed with high sensitivity, wide sensing range, rapid response time, and excellent cycling stability. Currently, emerging conductive materials include two-dimensional transition metal carbides and nitrides (MXenes). These materials have attracted immense attention in the field of flexible pressure sensors due to their high electrical conductivity, large specific surface area, and satisfactory hydrophilicity. This review highlights different preparation methods of MXene composites. It also summarizes the nanostructure design of pressure-sensitive materials to improve the performance of flexible pressure sensors for soft electronics applications. This review provides a comprehensive overview of the progress of MXene composites and their prospects in the area of flexible pressure sensors and summarizes the applications and challenges of these sensors in intelligent wearables. This review also proposes some suggestions for developing a new generation of intelligent textiles.

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“…The SE is often low using the blending method due to the existence of pores in the blended fabric. The SE is improved via the coating method, but the fabric loses original comfort properties such as air permeability and moisture permeability because of pores plugging, and the weight of the fabric increases [ 3 ]. Therefore, the research of maintaining original properties and affording excellent shielding performance of the EMS fabric becomes an urgent need in this field.…”

Section: Introductionmentioning

confidence: 99%

Shielding Performance of Electromagnetic Shielding Fabric Implanted with “Split-Ring Resonator”

2023

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The electromagnetic shielding (EMS) fabric is an important electromagnetic protection product, which is widely applied in various fields. The improvement of its shielding effectiveness (SE) has always been the focus of research. This article proposes to implant a metamaterial structure of a “split-ring resonator (SRR)” in the EMS fabrics, so that the fabric not only maintains the porous and lightweight characteristics, but also obtains the SE improvement. With the help of the invisible embroidery technology, stainless-steel filaments were used to implant hexagonal SRRs inside the fabric. The effectiveness and influencing factors of the SRR implantation were described by testing the SE of the fabric and analyzing the experimental results. It was concluded that the SRR implantation inside the fabric can effectively improve the SE of the fabric. For the stainless-steel EMS fabric, the increase amplitude of the SE reached between 6 dB and 15 dB in most frequency bands. The overall SE of the fabric showed a decrease trend with the reduction of the outer diameter of the SRR. The decrease trend was sometimes fast and sometimes slow. The decreasing amplitudes were different in various frequency ranges. The number of embroidery threads had a certain effect on the SE of the fabric. When other parameters remained unchanged, the increase of the diameter of the embroidery thread resulted in the increase of the SE of the fabric. However, the overall improvement was not significant. Finally, this article also points out that other influencing factors of the SRR need to be explored, and the failure phenomenon may occur under certain situations. The proposed method has the advantages of the simple process, convenient design, no pore formation, SE improvement retaining the original porous characteristics of the fabric. This paper provides a new idea for the design, production, and development of new EMS fabrics.

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Study on finishing and electromagnetic properties of electromagnetic shielding fabric based on multilayer Ti₃C₂T_x medium

Cited by 7 publications

References 43 publications

Effect of carbon nanotube fiber on shielding effectiveness of stainless-steel electromagnetic shielding fabric

Effect of carbon nanotube fiber on shielding effectiveness of stainless-steel electromagnetic shielding fabric

Review of MXene Nanosheet Composites for Flexible Pressure Sensors

Shielding Performance of Electromagnetic Shielding Fabric Implanted with “Split-Ring Resonator”

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