A facile one-pot scalable production of super electromagnetic shielding conductive cotton fabric by hierarchical graphene-composites

Islam, Zahidul; Deb, Hridam; Hasan, Khalid; Khoso, Nazakat Ali; Hossain, Md Khurrom; Yang, Wei; Qi, Xiaoming; Dong, Yubing; Zhu, Yao; Fu, Yaqin

doi:10.1007/s10853-022-07411-5

Cited by 9 publications

(4 citation statements)

References 60 publications

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“…For example, the internal reflection mechanism could be regulated by varying the number of layers, the conductivity of conductive layers, and the distances between conductive layers 274,275 . Furthermore, the intrinsic characteristics of electrically conductive nanofillers played the crucial role in determining the shielding performance of polymer composites 276,277 . The electrically conductive composites with laminated structures exhibited superior mechanical properties, adjustable EMI shielding and flexibility, suggesting their tremendous potential in the exploration of high‐performance EMI shielding materials 278,279 …”

Section: Progress In Structural Design Of Composites For Emi Shieldingmentioning

confidence: 99%

“…274,275 Furthermore, the intrinsic characteristics of electrically conductive nanofillers played the crucial role in determining the shielding performance of polymer composites. 276,277 The electrically conductive composites with laminated structures exhibited superior mechanical properties, adjustable EMI shielding and flexibility, suggesting their tremendous potential in the exploration of high-performance EMI shielding materials. 278,279 In summary, the multilayer structure typically consisted of absorption layers and reflection layers with 261 varying numbers and constructions, resulting in a comprehensive configuration.…”

Section: Laminated Structurementioning

confidence: 99%

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Recent advances in structural design of conductive polymer composites for electromagnetic interference shielding

Zheng,

Wang,

Zhu

et al. 2023

Polymer Composites

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The proliferation of electronic devices and wireless communication in our daily lives has led to a significant increase in electromagnetic pollution. This issue poses a serious threat to the proper functioning of electronic equipment as well as human health. Therefore, the investigation of materials with superior electromagnetic interference (EMI) shielding capabilities has garnered growing interest. In this paper, the mechanisms of EMI shielding were first introduced briefly. It was noted that the development of advanced EMI shielding materials involved adhering to principles such as minimizing reflection loss, enhancing absorption loss, and incorporating multiple internal reflections. The construction and shielding properties of traditional EMI shielding materials were introduced. Unlike metal materials with high densities and reflection loss, lightweight conductive polymer composites (CPCs) have been the most promising EMI shielding materials. Meanwhile, carbon‐based nanofillers such as carbon nanotubes and graphene nanosheets, along with two‐dimensional transition metal carbonitrides MXenes Ti3C2Tx, have emerged as the most promising and versatile conductive nanofillers for CPCs. The EMI shielding performance and loss mechanism of CPCs with homogeneous structure, segregated structure, laminated structure, and porous structure were introduced in detail. It was noted that the EMI shielding performance could be significantly improved by incorporating multiple structures into the same CPCs, such as a rational combination of segregated and porous structures. Finally, the challenges and development trends of CPCs for EMI shielding applications were discussed.Highlights Mechanisms of EMI shielding were introduced from aspect of energy dissipation. Structure–property of traditional EMI shielding materials was described. EMI shielding performance of CPCs with different structures was summarized. Future challenges and growing trends of CPCs for EMI shielding were discussed. Absorption‐dominated loss and multiple structure design were emphasized.

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Section: Progress In Structural Design Of Composites For Emi Shieldingmentioning

confidence: 99%

Section: Laminated Structurementioning

confidence: 99%

Recent advances in structural design of conductive polymer composites for electromagnetic interference shielding

Zheng,

Wang,

Zhu

et al. 2023

Polymer Composites

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“…They can combine different material classes, harnessing the advantages of both to good use. 140 Islam et al 141 employed the commercially scalable exhaust dyeing method to coat reduced graphene oxide (rGO)/ poly(3,4-ethylenedioxythiophene) polystyrenesulfonate (PE-DOT:PSS) hybrids on knitted cotton fabrics. The GO and PEDOT: PSS were directly dyed onto the fabric and reduced using ascorbic acid at 60 °C in the same process.…”

Section: ■ Hybrid Textilesmentioning

confidence: 99%

Evolution of Surface Engineering in the Development of Textile-Based EMI Shields─A Review

Jagadeshvaran

Bose

2023

ACS Appl. Electron. Mater.

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Innovations in electronics and the rapid developments in communication systems have been unprecedented and made life easier. One such advancement is wireless electronics, where gadgets operate in gigahertz frequencies, transmitting and receiving signals in the form of electromagnetic (EM) waves during their operation. The increased presence of EM waves in the atmosphere has led to EM pollution. With the miniaturization of devices, there is an increased volume of complex circuitry in a limited space, causing interference between them during operation, termed “electromagnetic interference” (EMI). EMI concerns are rising as they are considered severe threats to devices and their functioning. Flexible and lightweight EMI shielding materials are vital to combat this issue. Functional textiles are considered promising candidates with increasing attention due to their outstanding flexibility. They offer excellent design scope and can be integrated with different materials like metals, polymers, and their composites in different levels (fiber, yarn, and fabric). This review provides a concise note on the fundamental concepts and mechanisms of EMI shielding and emphasizes how textiles for EMI shielding applications have evolved over the past two decades. From metal yarn coweaved fabrics to multifunctional coatings, tremendous progress has been made design-wise. This review presents a holistic view of all these design architectures, critically analyzing their pros and cons, and a perspective indicating future research directions.

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“…Islam et al [43] developed a reduced graphene oxide/PEDOT:PSS-based knitted cotton fabric for EMI shielding applications. The modified cotton fabric exhibited outstanding electromagnetic interference shielding effectiveness, reaching up to 49 dB in the frequency range of 30-1530 MHz and 39 dB in the X band.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Structural Variations and Coating Techniques on the Microwave Properties of Woven Fabrics Coated with PEDOT:PSS Composition

Rubežienė,

Varnaitė-Žuravliova,

Sankauskaitė

et al. 2023

Polymers

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Minimizing the impact of electromagnetic radiation (EMR) holds paramount importance in safeguarding individuals who frequently utilize electrical and electronic devices. Electrically conductive textiles, which possess specialized EMR shielding features, present a promising solution to mitigate the risks related to EMR. Furthermore, these textile-based shielding materials could find application as radar-absorbing materials in stealth technology, emphasizing the need for substantial absorption capabilities in shielding mechanisms. In this study, various textile-based materials with an electrically conductive coating that contain the conjugated polymer system poly(3,4-ethylene-dioxythiophene)-polystyrene sulfonate (PEDOT:PSS) were prepared and investigated. The influence of the textile substrate structural parameters, coating deposit, and coating method on their microwave properties—transmission, reflection, and absorption—was investigated. Reflection and transmission measurements were conducted within a frequency range of 2 to 18 GHz. These measurements revealed that, for the tested samples, the shielding properties are determined by the combined effect of reflection and absorption. However, the role of these two parameters varies across the tested frequency range. It was defined that for fabrics coated on one side, better reflection reduction is obtained when the shielding effectiveness (SE) is below |20| dB. It was found that by controlling the coating deposition on the fabric, it is possible to fine-tune the electrical properties to a certain extent, thereby influencing the microwave properties of the coated fabrics. The studies of prepared samples have shown that reflection and transmission parameters depend not only on the type and quantity of conductive paste applied to the fabric but also on the fabric’s construction parameters and the coating technique used. It was found that the denser the substrate used for coating, the more conductive paste solidifies on the surface, forming a thicker coat on the top. For conductive fabrics with the same substrate to achieve a particular SE value using the knife-over-roll coating technology, the required coating deposit amount is considerably lower as compared with the deposit necessary in the case of screen printing: for the knife-over-roll-coated sample to reach SE 15 dB, the required deposit is approximately 14 g/m2; meanwhile, for a sample coated via screen printing, this amount rises to 23 g/m2.

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A facile one-pot scalable production of super electromagnetic shielding conductive cotton fabric by hierarchical graphene-composites

Cited by 9 publications

References 60 publications

Recent advances in structural design of conductive polymer composites for electromagnetic interference shielding

Recent advances in structural design of conductive polymer composites for electromagnetic interference shielding

Evolution of Surface Engineering in the Development of Textile-Based EMI Shields─A Review

The Impact of Structural Variations and Coating Techniques on the Microwave Properties of Woven Fabrics Coated with PEDOT:PSS Composition

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