A Flexible Sandwich Structure Carbon Fiber Cloth with Resin Coating Composite Improves Electromagnetic Wave Absorption Performance at Low Frequency

Liu, Yuanjun; Lu, Qianqian; Jing, Wang; Zhao, Xiaoming

doi:10.3390/polym14020233

Cited by 16 publications

(9 citation statements)

References 39 publications

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“…The absorbing material layer can attenuate and absorb electromagnetic wave, and the middle matching layer can choose other materials to make up for the limitation of single absorbing material on the electromagnetic wave absorption mechanism. Compared with other materials, 2D MXene nanomaterials with sandwich structure can absorb electromagnetic waves through both material absorption and structural absorption at the same time, and the application of sandwich structure usually does not affect the mechanical properties of materials …”

Section: Resultsmentioning

confidence: 99%

“…Compared with other materials, 2D MXene nanomaterials with sandwich structure can absorb electromagnetic waves through both material absorption and structural absorption at the same time, and the application of sandwich structure usually does not affect the mechanical properties of materials. 60…”

Section: Optimization Design Of Sandwich Structure Of 2d Ti 3 C 2 Tx-...mentioning

confidence: 99%

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Surface Size- and Structure-Optimized Design of Two-Dimensional MXene Nanosheets for Electromagnetic Wave Absorption

Song

2023

ACS Appl. Nano Mater.

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As a two-dimensional material, Ti 3 C 2 Tx-Mxene nanomaterial has been extensively studied for its applications in electromagnetic wave absorption (EMI) due to its extremely high surface area, excellent hydrophilicity, and metalliclike conductivity. However, the surface size and sandwich structure of twodimensional (2D) MXene nanomaterials are the key factors affecting their absorption properties, but no studies have been carried out. Therefore, in this work, a single layer of Ti 3 C 2 Tx-Mxene nanosheet material is fabricated by modification and its physical properties are characterized and analyzed. Then, the absorption properties of monolayers Ti 3 C 2 Tx-Mxene nanomaterials with different surface sizes are investigated both by numerical simulations and experiments, respectively, and surface sizes are optimized by orthogonal tests. Finally, the interlayered two-dimensional Ti 3 C 2 Tx-Mxene nanomaterials are optimized by particle swarm optimization (PSO) algorithm based on nanometer and millimeter size space. The results show that the best wave absorption performance is achieved with a surface size of 0.8 μm length and 0.6 μm width, resulting in a reflectivity of −98.59 dB. When ethanol is used as the matching material in the middle layer, the sandwich structure has better absorption properties than the air layer. The reflectivity of the PSO-optimized 2D Ti 3 C 2 Tx-Mxene sandwich structure in the nanometer size is observed in the range of −109.58 to −90.43 dB in the frequency range of 2−18 GHz. In addition, the reflectivity on the millimeter size fluctuates between −2.9 and −28.86 dB in the frequency range of 2−18 GHz, and the effective absorption bandwidth reaches 7.21 GHz. The optimized material shows the characteristics of low reflectivity and wide effective absorption frequency band, indicating that the optimized surface size and sandwich structure can better enable Ti 3 C 2 Tx-Mxene nanosheets to be applied to ethylene methyl acrylate (EMA) materials.

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Section: Resultsmentioning

confidence: 99%

Section: Optimization Design Of Sandwich Structure Of 2d Ti 3 C 2 Tx-...mentioning

confidence: 99%

Surface Size- and Structure-Optimized Design of Two-Dimensional MXene Nanosheets for Electromagnetic Wave Absorption

Song

2023

ACS Appl. Nano Mater.

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“…Electromagnetic interference materials composed of carbon-fiber woven fabric and effervescence could attain 45~60 dB with variations in stacking layers [31]. Similarly, electromagnetic interference composites composed of carbon-fiber woven fabric and graphene coating layer exhibited 18 dB [32]. In addition, electromagnetic interference composites made of carbonyl iron powder (CIP) and acrylonitrile butadiene styrene copolymers (ABS) via a 3D printer demonstrated a high degree of freedom, providing a flexible range of requirement by the electromagnetic shielding purposes [33].…”

Section: Introductionmentioning

confidence: 94%

A Study on Highly Effective Electromagnetic Wave Shield Textile Shell Fabrics Made of Point Polyester/Metallic Core-Spun Yarns

Huang

Hsu

et al. 2022

Polymers

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In this study, stainless steel (SS) filaments are wrapped in Ge fibers to form core-spun yarns. The yarns along with 500 D polyester (PET) fibers undergo weaving, thereby forming functional woven fabrics. The experiment is composed of two parts:yarns and fabrics. The yarns are twisted with TPI of 8, 9, 10, 11, and 12, and then tested for tensile strength and tensile elongation. The yarns possess mechanical properties that are dependent on the TPI—the higher the TPI, the better the mechanical properties. The maximal mechanical properties occur when the core-spun yarns are made of 12 TPI where the maximal tensile strength is 5.26 N and the lowest elongation is 43.2%. As for the functional woven fabrics, they are made of Ge/SS core-spun yarns as the weft yarns and 500 D PET yarns as the warp yarns. The tensile strength, tensile elongation, negative ion release, electromagnetic interference shielding effectiveness (EMI SE), and air permeability tests are conducted, determining the optimal woven fabrics. The 12 TPI core-spun yarns provide the woven fabrics with the maximal tensile strength of 153.6 N and the optimal elongation at break of 10.08%. In addition, the woven fabrics made with 8 or 9 TPI core-spun yarns exhibit an optimal EMI SE of 41 dB, an optimal air permeability of 212 cm3/cm2/s, and an optimal release amount of negative ion of 550–600 ions/cc. The proposed woven fabrics have a broad range of applications, such as functional garments and bedding.

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“…The coating material was prepared using the coating process [11][12] . Single-layer coated polyester-cotton fabrics were prepared by the fabric coating process with polyester-cotton fabric as the base cloth, nickel powders as the functional particles, and PU-2540 type polyurethane as the substrate.…”

Section: Preparation Of Materialsmentioning

confidence: 99%

Influence of the Content of Nickel Powders on the Electromagnetic Properties of SingleLayer Coated Polyester-Cotton Plain Weave Fabric

Liu

Xue

Wang

et al. 2022

Fibres &Amp; Textiles in Eastern Europe

Self Cite

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A coated composite was prepared on polyester-cotton plain weave fabric, using PU2540 polyurethane as the matrix. The influences of the content of nickel powders on the dielectric constant (the real and imaginary parts and loss tangent value), reflection loss and shielding effectiveness of single-layer coated composites were mainly investigated. The results showed that within the frequency range of 1–1000 MHz, the value of the real part of the dielectric constant of the coated composites was the largest, and the polarisation ability with regard to electromagnetic waves was the strongest when the content of nickel powders was 40%. Within the frequency range of 15–225 MHz, the value of the imaginary part of the dielectric constant of the coated composites was the largest and the loss ability with regard to electromagnetic waves was the strongest when the content of nickel powders was 40%. Within the frequency range of 250–800 MHz, the loss tangent value of the dielectric constant of coated composites was the largest, and the attenuation ability with regard to electromagnetic waves was the strongest when the content of nickel powders was 40%. Within the frequency range of 1220–3000 MHz, the reflection loss value was the smallest when the content of nickel powders was 40%, and its absorption ability with regard to electromagnetic waves was the strongest. Within the frequency range of 760–3000 MHz, the shielding effectiveness of the coated composite was the largest when the content of nickel powders was 40%.

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A Flexible Sandwich Structure Carbon Fiber Cloth with Resin Coating Composite Improves Electromagnetic Wave Absorption Performance at Low Frequency

Cited by 16 publications

References 39 publications

Surface Size- and Structure-Optimized Design of Two-Dimensional MXene Nanosheets for Electromagnetic Wave Absorption

Surface Size- and Structure-Optimized Design of Two-Dimensional MXene Nanosheets for Electromagnetic Wave Absorption

A Study on Highly Effective Electromagnetic Wave Shield Textile Shell Fabrics Made of Point Polyester/Metallic Core-Spun Yarns

Influence of the Content of Nickel Powders on the Electromagnetic Properties of SingleLayer Coated Polyester-Cotton Plain Weave Fabric

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