Regulation of dielectric and microwave absorption properties of needle-punched polyimide/carbon fiber nonwoven composites in X-band

Dong, Jie; Li, Rong; Fan, Xingyu; Wang, Yewen; Song, Zengrong; Sun, Runjun

doi:10.1016/j.jmrt.2022.09.114

Cited by 5 publications

(4 citation statements)

References 37 publications

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“…113–115 For example, PANI and PPy provide controlled electrical conductivity through movable π-electrons in double bonds, as well as low density, mechanical strength, corrosion resistance, and absorption capacity. 116…”

Section: Design Optimization Of Mxene Composite Ma Materialsmentioning

confidence: 99%

A review on MXene-based microwave absorption composites: engineering, component optimization and structure regulation

Ma,

Wei,

Liu

et al. 2024

J. Mater. Chem. C

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Section: Design Optimization Of Mxene Composite Ma Materialsmentioning

confidence: 99%

A review on MXene-based microwave absorption composites: engineering, component optimization and structure regulation

Ma,

Wei,

Liu

et al. 2024

J. Mater. Chem. C

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“…However, the inherent drawback of these fabrics is their reduced capacity for sustained pressure due to the stress relaxation of the knit, which impacts the overall durability. By comparison, nonwoven fabrics, characterized by a fibrous and porous structure directly formed from elastic fibers, boast the notable advantage of high stretchability . This attribute makes them particularly appealing for use in elastic bandages.…”

Section: Introductionmentioning

confidence: 99%

Comfortable, Anisotropic-Elastic, and Multilayered Fibrous Bandages with Enhanced Directional Tensile Performance

Zhang,

Zhai,

Zhen

et al. 2024

ACS Appl. Polym. Mater.

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Elastic fabric bandages exhibit great potential in covering the body contours due to their tensile and comfort performance being well-regulated by their fibrous structure. However, achieving low-coast and facile preparation methods for the fabric bandage with directional tensile performance remains a significant challenge. In this work, a cellulose/polyester composite fabric reinforced by polyolefin−elastomer filament webs (CEL/PET@ POE composite fabrics) was developed by a green and commercialized manufacturing strategy involving a laminating, cross-lapping, and needle-punching process. The resultant composited fabrics possess a multilayered fibrous morphology where fibers are aligned at −45°, 0°(along the longitude direction, i.e., length direction of the fabrics), and +45°. Besides, the POE filaments interweave amid the cellulose/polyester fibrous clusters, resulting in a stable network fibrous structure that offers excellent anisotropic elastic performance and directional extension performance. The fabric displays a breaking strength and elongation in the cross direction that are 2.7 and 0.55 times greater, respectively, compared to those in the machine direction. Moreover, the samples demonstrate brilliant breathability, excellent wearing comfort, and outstanding shape ability. These findings suggest that the prepared CEL/PET@POE composite fabric provides a powerful foundation for a series of potential applications in wearable medical hygiene, such as bandages, electronic textiles, and padding materials.

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“…Carbon nanofibers (CNFs) have garnered substantial attention due to their exceptional mechanical strength, low density, superior electrical conductivity, and remarkable adsorption capabilities. − These exceptional properties make CNFs highly promising for a broad range of applications, including aerospace, energy, catalysis, and various industrial sectors. − Porous carbon nanofibers (PCNFs) offer not only reduced weight but also an increased specific surface area, thereby enhancing their adsorption and filtration performance. − The spinning methods used to fabricate hollow and porous fibers include coaxial spinning, , phase separation, and template method . However, these techniques encounter significant challenges of low production efficiency and considerable quality variations, which hinder the large-scale and cost-effective production of porous carbon fibers. − Additionally, a critical impediment to the efficient development of PCNFs is intricate control of the pore structure.…”

Section: Introductionmentioning

confidence: 99%

Polymer Blend Blow Spinning of Flexible Porous Carbon Nanofibers Capable for Multiapplication

Zhang,

Song,

et al. 2024

ACS Appl. Nano Mater.

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Highly efficient production of porous carbon nanofibers (PCNFs) is indispensable for applications in adsorption, thermal insulation, catalysis, batteries, etc. Herein, rapid fabrication of PCNFs with flexible and efficient adsorption properties was achieved through polymer blend blow spinning at a rate of 10−30 mL•h −1 . Polyacrylonitrile (PAN) was used as the organic precursor to prepare PCNFs, with varying mass fractions of poly(methyl methacrylate) (PMMA) microspheres employed as pore-forming agents. Following high-temperature carbonization, the diameter of PCNFs was adjusted within a range of 0.2−1.2 μm, resulting in a high specific surface area of 34.63 m 2 g −1 and a pore distribution of 3−20 nm. PCNFs demonstrated exceptional mechanical resilience, withstanding cyclic compression strains of up to 60% and achieving a peak compression stress of 12.2 kPa. Additionally, PCNFs exhibited a significant adsorption capacity for oils and benzene, coupled with superior thermal insulation performance and an ultralow thermal conductivity of 0.022 W•(m•K) −1 . PCNFs can also be used as sensors and demonstrated unmatched sensitivity to minute pressure variations ranging from 0 to 1 N. The polymer blend blow spinning technique showcased operational simplicity and remarkable versatility across various materials. This excellent functional expandability demonstrated that the strategy held significant potential for the large-scale production of multifunctional PCNFs.

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Regulation of dielectric and microwave absorption properties of needle-punched polyimide/carbon fiber nonwoven composites in X-band

Cited by 5 publications

References 37 publications

A review on MXene-based microwave absorption composites: engineering, component optimization and structure regulation

A review on MXene-based microwave absorption composites: engineering, component optimization and structure regulation

Comfortable, Anisotropic-Elastic, and Multilayered Fibrous Bandages with Enhanced Directional Tensile Performance

Polymer Blend Blow Spinning of Flexible Porous Carbon Nanofibers Capable for Multiapplication

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