Light-weight and highly flexible TaC modified PyC fiber fabrics derived from cotton fiber textile with excellent electromagnetic shielding effectiveness

Liu, Xingmin; Xu, Hailong; Xie, Fangtong; Yin, Xiaowei; Riedel, Ralf

doi:10.1016/j.cej.2020.124085

Cited by 33 publications

(10 citation statements)

References 62 publications

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“…Electroconductibility (σ) is an important parameter for the dielectric loss capability of absorbers because the moving carriers inside the absorbers will interact with the incident microwave. Therefore, enhancing σ results from an increased amount of moving carriers and will result in improved wave absorption performance Figure presents the σ values of the SiC/ZrC/SiZrOC hybrid nanofibers that have different ZrC contents (pyrolyzed at 1500 °C).…”

Section: Resultsmentioning

confidence: 99%

Microwave Absorption Performance of SiC/ZrC/SiZrOC Hybrid Nanofibers with Enhanced High-Temperature Oxidation Resistance

Huo

Zhao

Miao

et al. 2020

ACS Sustainable Chem. Eng.

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In carbide ceramics, ZrC has a high melting point, high hardness, and excellent thermal conductivity and electrical conductivity. It can be used as a suitable additive phase for SiC nanomaterials to enhance its high-temperature resistance to oxidation and its microwave absorption property. In our work, heterogeneous SiC/ZrC/SiZrOC hybrid nanofibers with different ZrC contents are prepared using polycarbosilane and zirconium acetylacetonate as raw materials through electrospinning and hightemperature pyrolysis processes. With an increase in the ZrC content from 0 to 10 wt %, the electrical conductivity of the hybrid nanofibers increases from 0.3448 to 2.5676 S/cm, and the average diameter decreases from 800 to 200 nm. The SiC/ZrC/SiZrOC hybrid nanofibers result in improved microwave-absorbing capability with a minimum reflection loss of about −40.38 dB at 14.1 GHz, a thickness of 4 mm, and antioxidant properties at 600 °C. These results prove that the heterogeneous SiC/ZrC/SiZrOC hybrid nanofibers have reasonable electrical conductivity. This results in dielectric loss, which is mainly because of the added ZrC. The dipole polarization, interfacial polarization, quarter-wave cancellation, and conductivity loss are the main reasons for the enhanced microwave absorption.

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Section: Resultsmentioning

confidence: 99%

Microwave Absorption Performance of SiC/ZrC/SiZrOC Hybrid Nanofibers with Enhanced High-Temperature Oxidation Resistance

Huo

Zhao

Miao

et al. 2020

ACS Sustainable Chem. Eng.

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“…[178] 2017 American Chemical Society). EMI shielding materials work by reflecting, absorbing (attenuation), and/or transmitting the induced electromagnetic radiations, 177,179,180 with reflection being the dominant factor, 45 as schematically shown in Figure 12A and B.…”

Section: Applications Of Porous Sic With Controlled Electrical Resist...mentioning

confidence: 99%

“…177 2020 Elsevier), (B) schematic of the EMI shielding in porous SiC (reproduced with permission from Ref. 178 2017 American Chemical Society) (attenuation), and/or transmitting the induced electromagnetic radiations, 177,179,180 with reflection being the dominant factor, 45 as schematically shown in Figure 12A and B. The high mass density of metal-based EMI shielding materials limits their practical applications.…”

Section: Emi Shieldingmentioning

confidence: 99%

Controlling the electrical resistivity of porous silicon carbide ceramics and their applications: A review

Anwar

Bukhari

et al. 2022

Int J Applied Ceramic Tech

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Porous silicon carbide (SiC)‐based ceramics are widely used in numerous applications of technical importance owing to their exceptional structural (e.g., excellent chemical, mechanical, and thermal stability) and functional (e.g., controlled electrical resistivity) properties. Porous SiC with controlled electrical resistivity is required for various advanced applications, for example, power electronic devices, semiconductor processing parts, fusion reactors, thermoelectric energy conversion, electromagnetic shielding, and environmental applications such as heatable filters. The electrical properties of sintered porous SiC are significantly affected by its chemical composition, processing conditions, and microstructure. This article reviews the influence of certain critical factors, such as the polytype, doping conditions, porosity (%), additive composition (oxide additives, element additives, metal nitride/carbide additives, etc.), and processing conditions on the electrical resistivity of porous SiC. Novel applications of porous SiC with controlled electrical resistivity are also discussed in this review.

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“…MXene, the member of 2D nanomaterials family, is the combination of transition metal carbide/nitrides and is becoming popular among researchers (can be called ideal material) due to their excellent intrinsic electrical conductivity, Joule heating performance, layered structure and polar surface chemistry that is tuneable [56]. MXene can be represented by general formula M n+1 X n T x , where M represents the transition metals such as Ti, Zr, Nb, Mo, V while X represents C and/or N and T represents the end group such as –OH, =O, and –F [57]. This superb 2D nanomaterial can be engineered into films [58], aerogels [59], fibers [60] etc.…”

Section: Emi Shielding Materialsmentioning

confidence: 99%

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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Light-weight and highly flexible TaC modified PyC fiber fabrics derived from cotton fiber textile with excellent electromagnetic shielding effectiveness

Cited by 33 publications

References 62 publications

Microwave Absorption Performance of SiC/ZrC/SiZrOC Hybrid Nanofibers with Enhanced High-Temperature Oxidation Resistance

Microwave Absorption Performance of SiC/ZrC/SiZrOC Hybrid Nanofibers with Enhanced High-Temperature Oxidation Resistance

Controlling the electrical resistivity of porous silicon carbide ceramics and their applications: A review

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

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