Low-temperature treated polypyrrole coated cotton fabrics for efficient electromagnetic interference shielding

Zou, Lihua; Sun, Yanyan; Dou, Tiantian; Yao, Ming; Xu, Zhenzhen; Lan, Chuntao

doi:10.1007/s10570-023-05052-8

Cited by 15 publications

(6 citation statements)

References 39 publications

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“…In addition, when the CNT content was 10 wt%, the EMI SE was 34.42 dB, which is higher than that of 50 wt% CNTs, with an EMI SE of 25.07 dB [ 16 ], and could shield 99.96% of electromagnetic energy. When the content of CNTs was 15 wt%, the electromagnetic shielding efficiency was up to 47.1 dB, shielding 99.998% of incident electromagnetic wave, and this was absolutely suitable for commercial applications, which only require 20 dB [ 17 , 28 ]. In the whole frequency range, the shielding efficiency of the prepared 3D-printed samples with the addition of CNTs had exceeded that published in the literature [ 18 ], where the EMI SE of 3D-printed MWCNT/GNP (12 wt%) composites was only 13.4 dB.…”

Section: Resultsmentioning

confidence: 99%

Three-Dimensional-Printed Carbon Nanotube/Polylactic Acid Composite for Efficient Electromagnetic Interference Shielding

Dou

Wang

et al. 2023

Polymers

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High-performance electromagnetic interference (EMI) shielding materials with ultralow density and environment-friendly properties are greatly demanded to address electromagnetic radiation pollution. Herein, carbon nanotube/polylactic acid (CNT/PLA) materials with different CNT contents, which exhibit characteristics of light weight, environmental protection and good chemical stability, are fabricated using 3D printing technology, where CNTs are evenly distributed and bind well with PLA. The performances of 3D-printed CNT/PLA composites are improved compared to pure 3D-printed PLA composites, which include mechanical properties, conductive behaviors and electromagnetic interference (EMI) shielding. The EMI shielding effectiveness (SE) of CNT/PLA composites could be improved when the content of CNTs increase. When it reaches 15 wt%, the EMI SE of 3D-printed CNT/PLA composites could get up to 47.1 dB, which shields 99.998% of electromagnetic energy. Meanwhile, the EMI shielding mechanism of 3D-printed CNT/PLA composites is mainly of absorption loss, and it generally accounts for more than 80% of the total shielding loss. These excellent comprehensive performances endow a 3D-printed CNT/PLA composite with great potential for use in industrial and aerospace areas.

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Section: Resultsmentioning

confidence: 99%

Three-Dimensional-Printed Carbon Nanotube/Polylactic Acid Composite for Efficient Electromagnetic Interference Shielding

Dou

Wang

et al. 2023

Polymers

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“…Because PPy’s excellent adhesion sticks very well to different bearing surfaces, it is the most commonly used polymer to prepare textiles that have electrical conductivity and it may form a composite with insulating fibers or fabric [ 9 ]. Previous studies have reported the use of silk [ 10 ], wool [ 11 ], PES [ 12 ], cotton [ 13 ], and nano cellulose [ 14 ] were used with PPy to form conductive textiles. PTh and its substituents [ 15 – 16 ] and PANI [ 17 ] can be considered as the other most used polymers to form conductive textiles.…”

Section: Introductionmentioning

confidence: 99%

Copolymerization of pyrrole and carbazole onto polyester textile

KÜÇÜKKAYA,

USTAMEHMETOĞLU,

SEZER

et al. 2024

Turkish Journal of Chemistry

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The purpose of this study was the polymerization of carbazole (Cz), pyrrole (Py) and copolymerization of them onto polyester (PES) textile with chemical oxidative method by using FeCl 3 . First, in order to determine the optimum conditions, the effect of polymerization steps, the immersion order of the PES to the oxidant and monomer solutions, time, monomer, oxidant, and surfactant concentrations and types on the conductivities of PES/PCz composite were investigated and at this conditions, conductive composite, PES/P[Py-co-Cz] was obtained. The highest conductivities were obtained as 12.4 mS/cm and 9.0 mS/cm for PES/PCz and PES/P[Py-co-Cz], respectively. Further characterization of PES/P[Py-co-Cz] was performed by conductivity, FTIR, scanning electron microscopy (SEM), and dynamic mechanical analysis (DMA) measurements, and results were compared with PES/PCz and also PES/PPy. The presence of Py and Cz in the same polymer chain created synergy and improved the conductivity and mechanical properties of the composite.

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“…Among diverse exible substrates, cellulose-based cotton fabrics with vertically interwoven warp and weft yarns, generally gained from renewable resources, are desirable candidates because of their low carbon footprint, economic feasibility, exibility, large speci c surface area, and intrinsic biocompatibility. Exploitation of cotton fabrics as substrates has received extensive attention from academic circles due to the intrinsic characteristics above mentioned (Yu et al, 2022;Zou et al, 2023). The fabrics coated with conductive materials, like metal, carbon nanomaterials, and organic conducting polymers, have attracted much attention due to the inherent properties of cotton fabrics.…”

Section: Introductionmentioning

confidence: 99%

“…The fabrics coated with conductive materials, like metal, carbon nanomaterials, and organic conducting polymers, have attracted much attention due to the inherent properties of cotton fabrics. Fabrics modi ed with inorganic materials face the risk of long-term stability because of the weak interactions between coatings and fabrics (Zou et al, 2023). Nano bers have been used as templates to fabricate multifunctional hydrogels and can also promote the accessibility of Cr (VI) adsorption sites (Feng et al, 2020;Guo et al, 2021;Shao et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Nano bers have been used as templates to fabricate multifunctional hydrogels and can also promote the accessibility of Cr (VI) adsorption sites (Feng et al, 2020;Guo et al, 2021;Shao et al, 2021). Polypyrrole (PPy) has been widely used as a conducting medium, which is attributed to the inherent properties such as excellent electrical conductivity, simple synthesis procedure (Shao et al, 2021;Yu et al, 2022;Zou et al, 2023), high environmental stability, and lightweight (Wang et al, 2017). However, pure PPy materials remain defects, including poor long-term stability, inadequate dispersibility, and the intrinsic brittleness of conjugated chains (Chen et al, 2022;Feng et al, 2020;Wang et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Multifunctional ENR-g-PNIPAM/PPy/cotton fabric composites for hexavalent chromium removal

Ding,

Yang,

Wang

et al. 2024

Cellulose

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Epoxidized natural rubber (ENR) grafted Poly(N-isopropylacrylamide) (ENR-g-PNIPAM) hydrogel was exploited by classic free radical polymerization, which exhibited practical potential for temperaturesensitive material. Free ENR was introduced in the ENR-g-PNIPAM hydrogel to construct a secondary network that will form chain entanglement and further improve the chemical and physical properties of the hydrogel. The renewable ENR and a facile fabrication process make large-scale production of the ENR-g-PNIPAM hydrogel possible and prompt its commercial value. The content of ENR was systematically varied and studied to ensure optimal ratio. Among various compositions examined, the 7:3 weight ratio of ENR/NIPAM in the hydrogel(70ENR) exhibited excellent properties. Additionally, a simple scheme was also designed for fabricating a multifunctional ENR-g-PNIPAM/polypyrrole/cotton (EPPC) composites with simultaneous adsorption of Cr (VI) and electrothermal conversion. The EPPC composites demonstrated good adsorption capacity with 127 mg/g at pH = 2 in an aqueous solution containing 100mg/L Cr (VI), while also functioning as a thermistor with enhanced sensitivity. The adsorption data can be better described by the pseudo-second-order kinetic model and the Freundlich isotherm model, indicating that the adsorption was a chemical and multilayer. Bene ting from these research results, enabling the synthesized hydrogel a crucial role in terms of Cr (VI) treatment and thermal sensor.

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Low-temperature treated polypyrrole coated cotton fabrics for efficient electromagnetic interference shielding

Cited by 15 publications

References 39 publications

Three-Dimensional-Printed Carbon Nanotube/Polylactic Acid Composite for Efficient Electromagnetic Interference Shielding

Three-Dimensional-Printed Carbon Nanotube/Polylactic Acid Composite for Efficient Electromagnetic Interference Shielding

Copolymerization of pyrrole and carbazole onto polyester textile

Multifunctional ENR-g-PNIPAM/PPy/cotton fabric composites for hexavalent chromium removal

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