Fabrication of electromagnetic shielding polyester fabrics with carboxymethyl chitosan-palladium complexes activation

Shen, Yan; Zhang, H. F.; Wang, L. M.; Xu, Liang; Ding, Yannan

doi:10.1007/s12221-014-1414-2

Cited by 11 publications

(4 citation statements)

References 30 publications

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“…For example, stannous chloride (SnCl 2 ) is generally used to form gel on fabric surface to reduce the activator palladium chloride (PdCl 2 ), the noble metal catalytic is formed on the surface of the fabric, the activation energy of metal deposition during chemical plating process is reduced, leading to increased metal deposition rate. Traditional chemical plating process is complicated, and the involved SnCl 2 and PdCl 2 can cause environmental pollution due to their toxic nature [8,9]. Moreover, the loose coating with weak bonding between metal and fabric restricts its practical applications.…”

Section: Introductionmentioning

confidence: 99%

Ag NPs-Assisted Synthesis of Stable Cu NPs on PET Fabrics for Antibacterial and Electromagnetic Shielding Performance

Wang

Zhang

et al. 2020

Polymers

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In this study, Cu/Ag/polydopamine (PDA)/polyester (PET) fabrics were fabricated for multi-functional textiles. The PET fabrics were firstly modified by dopamine to form a polydopamine (PDA) layer on the fiber surface, then Ag nanoparticles (Ag NPs) were anchored on fiber surface through chelation between PDA and Ag+ ions, and the Ag NPs were further used as catalytic seeds for in situ reduction of Cu nanoparticles (Cu NPs). The surface morphology, chemistry, and crystalline structure of the prepared PET fabrics were characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD). As expected, Cu NPs were evenly dispersed on the surface of fibers. The Cu/Ag/PDA/PET fabrics showed good antibacterial property against Escherichia coli and exhibited excellent electromagnetic interference (EMI) shielding ability. The Cu/Ag/PDA/PET fabrics with high performance antibacterial and EMI shielding properties can be applied as functional protective textiles.

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Section: Introductionmentioning

confidence: 99%

Ag NPs-Assisted Synthesis of Stable Cu NPs on PET Fabrics for Antibacterial and Electromagnetic Shielding Performance

Wang

Zhang

et al. 2020

Polymers

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“…Electroless plating of Cu on PET fabric gave EMSE ranges from 30–59 dB in the frequency band of 100 MHz to 1800 MHz depending upon different reaction parameters and pre-treatment agents [150]. While electroless deposition of nickel on PET fabric using different activation solutions gave 125 mΩ/sq surface resistance and 40–60 dB shielding effectiveness over frequency band 0.3–3000 MHz [154].…”

Section: Emi Shielding Textilesmentioning

confidence: 99%

Polymeric textile-based electromagnetic interference shielding materials, their synthesis, mechanism and applications – A review

Safdar

Ashraf

Javid

et al. 2021

Journal of Industrial Textiles

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The rapid proliferation of electronic devices and their operation at high frequencies has raised the contamination of artificial electromagnetic radiations in the atmosphere to an unprecedented level that is responsible for catastrophe for ecology and electronic devices. Therefore, the lightweight and flexible electromagnetic interference (EMI) shielding materials are of vital importance for controlling the pollution generated by such high-frequency EM radiations for protecting ecology and human health as well as the other nearby devices. In this regard, polymeric textile-based shielding composites have been proved to be the best due to their unique properties such as lightweight, excellent flexibility, low density, ease of processability and ease of handling. Moreover, such composites cover range of applications from everyday use to high-tech applications. Various polymeric textiles such as fibers, yarn, woven, nonwoven, knitted, as well as their hybrid composites have been extensively manipulated physically and/or chemically to act as shielding against such harmful radiations. This review encompasses from basic concept of EMI shielding for beginner to the latest research in polymeric-based textile materials synthesis for experts, covering detailed mechanisms with schematic illustration. The review also covers the gap of materials synthesis and their application on polymeric textiles which could be used for EMI shielding applications. Furthermore, recent research regarding rendering EMI shielding properties at various stages of polymeric textile development is provided for readers with critical analysis. Lastly, the applications along with environmental compliance have also been presented for better understanding.

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“…Silver‐plated fabrics show excellent shielding effectiveness. The substrate material for metal plating is mainly cotton, polyester, and polyamide (PA) fabrics . PAFs are widely used in textile and garment fields due to their high strength, high wear resistance, and high resilience.…”

Section: Introductionmentioning

confidence: 99%

Silver‐plated polyamide fabrics with high electromagnetic shielding effectiveness performance prepared by in situ reduction of polydopamine and chemical silvering

et al. 2019

J of Applied Polymer Sci

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In this article, the silver-plated polyamide fabrics (SPPAFs) with high electroconductibility and shielding effectiveness were fabricated by using in situ reduction of polydopamine and chemical silvering. The effects of SPPAFs dopamine (C 8 H 11 O 2 N) and silver nitrate (AgNO 3 ) concentration on surface resistivity and electromagnetic interference shielding effectiveness were studied. The results showed that the surface resistivity of SPPAFs can reach a minimum value of 0.06 AE 0.014 Ω cm −1 , when C 8 H 11 O 2 N concentration is 4 g L −1 and the AgNO 3 concentration is 120 g L −1 . The shielding effectiveness of SPPAFs in the wide frequency range of 10-3000 MHz increases with the increase in the concentration of AgNO 3 , and increases first and stabilizes afterward with increasing C 8 H 11 O 2 N concentration. When the concentration of C 8 H 11 O 2 N and AgNO 3 is 3 and 120 g L −1 , respectively, mean shielding effectiveness values in the low-, medium-, and highfrequency bands are 71.3, 73.8, and 76.1 dB, respectively. Moreover, the mean shielding effectiveness values is 83.79 dB in the frequency range of 1.2-2.3 GHz. The dominant shielding mechanism of SPPAFs is the reflected electromagnetic waves and the absorption shielding effectiveness is less than 2 dB. The average electromagnetic shielding values of SPPAFs are above 67 dB after 16 weeks of storage, when C 8 H 11 O 2 N concentration is 4 g L −1 and the AgNO 3 concentration is 80 and 100 g L −1 . The prepared SPPAFs show promising applications in military textiles and smart wearable clothing.

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Fabrication of electromagnetic shielding polyester fabrics with carboxymethyl chitosan-palladium complexes activation

Cited by 11 publications

References 30 publications

Ag NPs-Assisted Synthesis of Stable Cu NPs on PET Fabrics for Antibacterial and Electromagnetic Shielding Performance

Ag NPs-Assisted Synthesis of Stable Cu NPs on PET Fabrics for Antibacterial and Electromagnetic Shielding Performance

Polymeric textile-based electromagnetic interference shielding materials, their synthesis, mechanism and applications – A review

Silver‐plated polyamide fabrics with high electromagnetic shielding effectiveness performance prepared by in situ reduction of polydopamine and chemical silvering

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