The optimization of nanocomposite coating with polyaniline coated carbon nanotubes on fabrics for exceptional electromagnetic interference shielding

Zou, Lihua; Lan, Chuntao; Yang, Li; Xu, Zhenzhen; Chu, Changliu; Liu, Yingcun; Qiu, Yiping

doi:10.1016/j.diamond.2020.107757

Cited by 47 publications

(32 citation statements)

References 47 publications

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“…S5). Nevertheless, this value still indicated good flexibility and was comparable to that of other common textiles, including fabrics in commercial suits (0.080 cN cm 2 cm −1 ) and shirts (0.050 cN cm 2 cm −1 ) [ 38 , 41 ], flame-retardant fabrics (0.092 cN cm 2 cm −1 ) [ 35 ], and superhydrophobic fabrics (0.110 cN cm 2 cm −1 ) [ 29 ]. Additionally, the area mass density of the PPy6@POTS fabric was 12.633 mg cm −2 (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…SE , a parameter to evaluate the shielding performance, is defined as Eq. 1 [ 38 ]: where S 12 and S 21 are the S-parameters recorded from VNA and P t and P i are the transmitted power and incident power of electromagnetic waves, respectively. Additionally, the reflectivity ( R ) and transmissivity ( T ) of the shield performance were calculated based on Eqs.…”

Section: Methodsmentioning

confidence: 99%

“…( 2 ) and ( 3 ): The shielding mechanisms of reflection loss ( SE R ) and absorption loss ( SE A ) were elaborately calculated according to Eqs. ( 4 ) and ( 5 ) [ 16 , 38 ]: …”

Section: Methodsmentioning

confidence: 99%

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Near-Instantaneously Self-Healing Coating toward Stable and Durable Electromagnetic Interference Shielding

et al. 2021

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Durable electromagnetic interference (EMI) shielding is highly desired, as electromagnetic pollution is a great concern for electronics’ stable performance and human health. Although a superhydrophobic surface can extend the service lifespan of EMI shielding materials, degradation of its protection capability and insufficient self-healing are troublesome issues due to unavoidable physical/chemical damages under long-term application conditions. Here, we report, for the first time, an instantaneously self-healing approach via microwave heating to achieve durable shielding performance. First, a hydrophobic 1H,1H,2H,2H-perfluorooctyltriethoxysilane (POTS) layer was coated on a polypyrrole (PPy)-modified fabric (PPy@POTS), enabling protection against the invasion of water, salt solution, and corrosive acidic and basic solutions. Moreover, after being damaged, the POTS layer can, for the first time, be instantaneously self-healed via microwave heating for a very short time, i.e., 4 s, benefiting from the intense thermal energy generated by PPy under electromagnetic wave radiation. This self-healing ability is also repeatable even after intentionally severe plasma etching, which highlights the great potential to achieve robust and durable EMI shielding applications. Significantly, this approach can be extended to other EMI shielding materials where heat is a triggering stimulus for healing thin protection layers. We envision that this work could provide insights into fabricating EMI shielding materials with durable performance for portable and wearable devices, as well as for human health care."Image missing"

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Near-Instantaneously Self-Healing Coating toward Stable and Durable Electromagnetic Interference Shielding

et al. 2021

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“…The coated fabric had an exception EMI SE of 23.0dB. Simultaneously, the polymer nanocompositecoated fabric exhibited a high adsorption ratio of the incident electromagnetic energy with distinguished EMI-shielding performance [147].…”

Section: Emi/microwave Shielding Fabricsmentioning

confidence: 93%

Textile Finishing Using Polymer Nanocomposites for Radiation Shielding, Flame Retardancy and Mechanical Strength

Gowri

Khan

Srivastava

2021

TLR

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The uses of nanotechnologies in textiles are strategic and allow textiles to become multifunctional. There is an ever-increasing demand for new functionalities, like flame retardancy, radiation shielding, improved mechanical strength etc., for highly specific applications. There is no industrial supply for the above-mentioned functionalities. Keeping in view of this background, surface treatment becomes one of the most important methods to create new textile properties. Polymer nanocomposites based on coatings for textiles have a huge potential for innovative modifications of surface properties like flame retardancy, radiation shielding and improved mechanical properties, which can be applied with a comparatively low technical effort and at moderate temperatures. This review compiles recent research on polymer nanocomposites for functional finishing of textiles to understand the theoretical and experimental tools on polymer nanocomposites and their applications in textiles.

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“…It is known that electrically conductive materials can also shield electromagnetic waves [ 26 , 27 , 28 ]. Therefore, forming electrically conductive layers on the surface of the wool fibers is a feasible solution.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Possibilities of Wool Fiber Surface Modification with Copper Selenide

2021

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A study of altering the conductive properties of wool fibers by applying copper selenide is presented. The researched modification of wool fibers was based on a two-stage adsorption-diffusion process. X-ray diffraction, scanning electron microscope, energy-dispersive X-ray spectrum, and Fourier transform infrared spectroscopy were performed to evaluate the morphological and physical characteristics of all CuxSe-coated wool fibers. X-ray diffraction (XRD) data showed a single, Cu0.87Se (klockmannite), crystalline phase present, while Atomic Absorption Spectroscopy (AAS) and Energy Dispersive X-ray (EDX) analyses showed that the concentrations of Cu and Se in copper selenide coatings depend on the number of wool fiber treatment cycles. It was determined that a dense layer of CuxSe grows through a nucleation mechanism followed by particle growth to fill out the complete surface. It was found that the conductivity of the coated wool fibers depends on the quality and density of the copper selenide coating, thus the resistance of electrically impermeable wool fibers can be reduced to 100 Ω by increasing the number of treatment cycles.

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The optimization of nanocomposite coating with polyaniline coated carbon nanotubes on fabrics for exceptional electromagnetic interference shielding

Cited by 47 publications

References 47 publications

Near-Instantaneously Self-Healing Coating toward Stable and Durable Electromagnetic Interference Shielding

Near-Instantaneously Self-Healing Coating toward Stable and Durable Electromagnetic Interference Shielding

Textile Finishing Using Polymer Nanocomposites for Radiation Shielding, Flame Retardancy and Mechanical Strength

Investigation of the Possibilities of Wool Fiber Surface Modification with Copper Selenide

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