A new study on the influencing factors and mechanism of shielding effectiveness of woven fabrics containing stainless steel fibers

Yang, Yalan; Wang, Jianping; Liu, Zhe

doi:10.1177/1528083719846664

Cited by 11 publications

(8 citation statements)

References 22 publications

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“…Therefore, Yang et al studied the effect of various structural parameters on shielding performance of fabrics and attempted to develop prediction models using extreme learning machine (ELM) algorithm taking different fabric structural parameters and their shielding performances at different frequency points as input and output variables respectively. The sensitivity analysis indicated that the prediction accuracy of the developed models had good reliability in accordance with the actual results [107,108].…”

Section: Emi Shielding Textilesmentioning

confidence: 74%

Polymeric textile-based electromagnetic interference shielding materials, their synthesis, mechanism and applications – A review

Safdar

Ashraf

Javid

et al. 2021

Journal of Industrial Textiles

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The rapid proliferation of electronic devices and their operation at high frequencies has raised the contamination of artificial electromagnetic radiations in the atmosphere to an unprecedented level that is responsible for catastrophe for ecology and electronic devices. Therefore, the lightweight and flexible electromagnetic interference (EMI) shielding materials are of vital importance for controlling the pollution generated by such high-frequency EM radiations for protecting ecology and human health as well as the other nearby devices. In this regard, polymeric textile-based shielding composites have been proved to be the best due to their unique properties such as lightweight, excellent flexibility, low density, ease of processability and ease of handling. Moreover, such composites cover range of applications from everyday use to high-tech applications. Various polymeric textiles such as fibers, yarn, woven, nonwoven, knitted, as well as their hybrid composites have been extensively manipulated physically and/or chemically to act as shielding against such harmful radiations. This review encompasses from basic concept of EMI shielding for beginner to the latest research in polymeric-based textile materials synthesis for experts, covering detailed mechanisms with schematic illustration. The review also covers the gap of materials synthesis and their application on polymeric textiles which could be used for EMI shielding applications. Furthermore, recent research regarding rendering EMI shielding properties at various stages of polymeric textile development is provided for readers with critical analysis. Lastly, the applications along with environmental compliance have also been presented for better understanding.

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Section: Emi Shielding Textilesmentioning

confidence: 74%

Polymeric textile-based electromagnetic interference shielding materials, their synthesis, mechanism and applications – A review

Safdar

Ashraf

Javid

et al. 2021

Journal of Industrial Textiles

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“…Liu then used the surface digital image analysis technology to analyze the surface of metal fabrics and establish the characteristic matrix, and found that the percentage content of metal fibers, porosity and arrangement direction all had a great influence on SE [66]. Yang et al [67] tested various parameters of stainless-steel fibers blended fabrics on the influence of EM shielding. The results showed that stainless steel fibers content of fabrics was positively correlated with SE, fabrics compactness was negatively correlated with S, fabric with a small difference in warp and weft density showed better SE, and the SE of bidirectional blended yarns were better than that of unidirectional blended yarns.…”

Section: The Experiments To Investigate Em Shielding Fabricsmentioning

confidence: 99%

A Review of Electromagnetic Shielding Fabric, Wave-Absorbing Fabric and Wave-Transparent Fabric

Yin

Gao

et al. 2022

Polymers

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As the basic materials with specific properties, fabrics have been widely applied in electromagnetic (EM) wave protection and control due to their characteristics of low density, excellent mechanical properties as well as designability. According to the different mechanisms and application scenarios on EM waves, fabrics can be divided into three types: EM shielding fabric, wave-absorbing fabric and wave-transparent fabric, which have been summarized and prospected from the aspects of mechanisms and research status, and it is believed that the current research on EM wave fabrics are imperfect in theory. Therefore, in order to meet the needs of different EM properties and application conditions, the structure of fabrics will be diversified, and more and more attentions should be paid to the research on structure of fabrics that meets EM properties, which will be conductive to guiding the development and optimization of fabrics. Furthermore, the application of fabrics in EM waves will change from 2D to 3D, from single structure to multiple structures, from large to small, as well as from heavy to light.

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“…However, the research of this aspect is still slow, and the existing mainly focuses on the numerical model calculation [ 4 ], structural characteristics [ 5 ], performance improvement [ 6 , 7 ], influencing factors analysis [ 8 , 9 ], test evaluation [ 10 ], new product development [ 11 , 12 ], and new mechanism research [ 13 , 14 ]. At present, improving the SE of the EMS fabric and retaining the inherent porous characteristics lack effective methods.…”

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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A new study on the influencing factors and mechanism of shielding effectiveness of woven fabrics containing stainless steel fibers

Cited by 11 publications

References 22 publications

Polymeric textile-based electromagnetic interference shielding materials, their synthesis, mechanism and applications – A review

Polymeric textile-based electromagnetic interference shielding materials, their synthesis, mechanism and applications – A review

A Review of Electromagnetic Shielding Fabric, Wave-Absorbing Fabric and Wave-Transparent Fabric

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

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