Multifunctional microwave heating and absorbing honeycomb core using nickel-coated glass fabric

Choi, Won‐Ho; Choe, Hyeon-Seok; Nam, Young‐Woo

doi:10.1016/j.compositesa.2020.106070

Cited by 20 publications

(5 citation statements)

References 34 publications

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“…To broaden the application of conventional EM-wave absorption materials in wearable electronics, the synergistic combination of absorption materials and fabrics with inherent wearability, including flexibility, foldability, and air perme- ability, demonstrates a feasible strategy to fabricate scalable, lightweight, and wearable EM-wave absorption fabrics. 15 Electrospinning, knitting, and dip coating are the main methods to create such fabrics with wearability. For example, Bi et al reported a unique nonwoven C@Co/N-doped C@ PPy microwave absorption fabric by the electrospinning technique.…”

Section: Introductionmentioning

confidence: 99%

Nanometer-Sized Carbon Black and Fe₃O₄ Nanoparticles Incorporated into Polyamide-66 Composite Fibers and Woven into Three-Dimensional Fabrics for Electromagnetic Absorption

Gao,

Deng,

et al. 2024

ACS Appl. Nano Mater.

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High-performance microwave absorption materials with broad electromagnetic absorption bandwidths and scalable architectures have been increasingly demanded in modern electric and telecommunications industries. Herein, we propose a flexible three-dimensional (3D) woven fabric with superior washability and electromagnetic-wave absorption capability using the nanoengineered carbon black (CB)-Fe 3 O 4 /polyamide-66 (PA-66) composite fibers that possess a unique core−sheath structure. Notably, the impedance matching and microwave attenuation of the proposed 3D fabric absorbers are realized by the dielectric− magnetic coupling effect of nanometer-sized CB and Fe 3 O 4 nanoparticles within the constituent PA-66 fibers. The produced 3D fabrics showed superior mechanical properties with a tensile strength of 35 MPa, good softness with flexibility of drape coefficient up to 88.8%, and great air permeability with an air permeability of over 109 mm/s. At a weft density of 250 picks/10 cm, the fabric realized the best electromagnetic-wave absorption performance with a minimum reflection loss of −34.5 dB, owing to the good impedance-matched 3D orthogonal structures and integrated dielectric−magnetic fibrous networks of the 3D fabric. In particular, this performance could be well-maintained even after rinsing five times or folding to two layers. This study can provide a promising route to developing next-generation flexible electromagnetic absorption materials.

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Section: Introductionmentioning

confidence: 99%

Nanometer-Sized Carbon Black and Fe₃O₄ Nanoparticles Incorporated into Polyamide-66 Composite Fibers and Woven into Three-Dimensional Fabrics for Electromagnetic Absorption

Gao,

Deng,

et al. 2024

ACS Appl. Nano Mater.

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“…One is microwave heating technology, [2][3][4] which uses the energy absorbed from microwaves to generate and transfer thermal energy for specific applications. Prominent application scenarios include aircraft deicing, [5,6] medical microwave ablation therapy, microwave curing, [7][8][9][10] gas detection, [11][12][13][14] etc. The other is eliminating the effects of temperature rises resulting from the energy absorption, thereby improving the highpower processing capability of materials and enhancing their suitability for high-power applications.…”

Section: Introductionmentioning

confidence: 99%

Thermal management by manipulating electromagnetic parameters

Wang 王,

Liang 梁,

Han 韩

et al. 2024

Chinese Phys. B

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Electromagnetic absorbing materials may convert electromagnetic energy into heat energy and dissipate it. However, in high-power electromagnetic radiation environment, the temperature of the absorbing material rises significantly and even burns. It becomes critical to ensure electromagnetic absorption performance while minimizing temperature rise. Here, we systematically study the coupling mechanism between the electromagnetic field and the temperature field when the absorbing material is irradiated by electromagnetic waves. We find out the influence of the constitutive parameters of the absorbing materials (including uniform and non-uniform) on the temperature distribution. Finally, through a smart design, we achieve better absorption and lower temperature simultaneously. The accuracy of the model is affirmed as simulation results aligned with theoretical analysis. This work provides a new avenue to control the temperature distribution of absorbing materials.

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“…However, the ordinary state of these MAMs is in the form of loose particles which can only be utilized as MA coatings or fillers, presenting the disadvantage of the high density and rigidity that significantly constrain their applications in the wearable electronics field. On the other hand, the synergistic combination of the MAMs and the fabric materials with their inherent flexibility, foldability, and air permeability demonstrates a feasible strategy to construct the scalable, lightweight, and wearable MAMs, which has become as a research focal point [16]. Currently, the wearable fabric MAMs are mainly manufactured by either simply coating the fabric with the MA particles [8] or forming the fabric through the structural integration with the specially designed MA fibers [17].…”

Section: Introductionmentioning

confidence: 99%

Flexible and customizable three-dimensional woven fabrics using dielectric- magnetic coupled polyamide-66 composite fibers for efficient and controllable electromagnetic wave absorption

Gao,

Deng,

et al. 2023

Preprint

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High-performance microwave absorption materials with broad electromagnetic absorption bandwidths and scalable architectures have been increasingly demanded in the modern electric and telecommunications industries. Herein, we propose a series of large-scale microwave absorption (MA) three-dimensional (3D) woven fabrics with the customizable microwave absorption characteristics constructed using the nano-engineered carbon black (CB)-Fe3O4/polyamide-66 (PA-66) composite fibers that possess of a unique core-sheath structure. Notably, the impedance matching and microwave attenuation of the proposed 3D fabric absorbers are realized attributing to the dielectric-magnetic coupling effect of CB and Fe3O4 within the constituent fibers. The overall MA performance of these 3D fabric absorbers are then optimized by strategically modulating their macroscopic woven patterns. In this study, the reflection loss (RL) of the 3D fabric absorbers was measured following the arch test method. In specific, at the incident angle of 60°, the minimum RL (RLmin) of the 3D fabric absorber with the weft density of 250 picks/10-cm (3DF-250) reaches − 34.5 dB at the thickness of 1.68 mm and presents an effective absorption bandwidth (EAB, as RL≤-10 dB) of 4.99 GHz. Particularly, at the incident angle of 0°, the EAB of the folded 3DF-250 absorber (i.e., at the thickness of 3.36 mm) covers the entire X-band. In addition, the proposed 3D fabric absorbers show good softness (with drape coefficient of 83.1–88.8%), superior mechanical properties (i.e., an average equivalent strength of 35 MPa and fracture strain of 60%), and great air permeability (> 109 mm/s). In a word, we believe that the 3D fabric absorbers can be a strong candidate for being a viable microwave stealth material and demonstrate great application potentials for the wearable electromagnetic wave protection.

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Multifunctional microwave heating and absorbing honeycomb core using nickel-coated glass fabric

Cited by 20 publications

References 34 publications

Nanometer-Sized Carbon Black and Fe₃O₄ Nanoparticles Incorporated into Polyamide-66 Composite Fibers and Woven into Three-Dimensional Fabrics for Electromagnetic Absorption

Nanometer-Sized Carbon Black and Fe₃O₄ Nanoparticles Incorporated into Polyamide-66 Composite Fibers and Woven into Three-Dimensional Fabrics for Electromagnetic Absorption

Thermal management by manipulating electromagnetic parameters

Flexible and customizable three-dimensional woven fabrics using dielectric- magnetic coupled polyamide-66 composite fibers for efficient and controllable electromagnetic wave absorption

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Multifunctional microwave heating and absorbing honeycomb core using nickel-coated glass fabric

Cited by 20 publications

References 34 publications

Nanometer-Sized Carbon Black and Fe3O4 Nanoparticles Incorporated into Polyamide-66 Composite Fibers and Woven into Three-Dimensional Fabrics for Electromagnetic Absorption

Nanometer-Sized Carbon Black and Fe3O4 Nanoparticles Incorporated into Polyamide-66 Composite Fibers and Woven into Three-Dimensional Fabrics for Electromagnetic Absorption

Thermal management by manipulating electromagnetic parameters

Flexible and customizable three-dimensional woven fabrics using dielectric- magnetic coupled polyamide-66 composite fibers for efficient and controllable electromagnetic wave absorption

Contact Info

Product

Resources

About

Nanometer-Sized Carbon Black and Fe₃O₄ Nanoparticles Incorporated into Polyamide-66 Composite Fibers and Woven into Three-Dimensional Fabrics for Electromagnetic Absorption

Nanometer-Sized Carbon Black and Fe₃O₄ Nanoparticles Incorporated into Polyamide-66 Composite Fibers and Woven into Three-Dimensional Fabrics for Electromagnetic Absorption