Preparation of silver/reduced graphene oxide coated polyester fabric for electromagnetic interference shielding

Wang, Can; Xiang, Cheng; Tan, Lin; Lan, Jianwu; Peng, Linghui; Jiang, Shou-xiang Kinor; Guo, Ronghui

doi:10.1039/c7ra07863c

Cited by 49 publications

(30 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In both the solely AgNP and Ag-rGO samples, there was a detectable leaching of silver into the saline solution over the 180 min, even though leachant concentrations are seemingly below the values commonly observed for municipal wastewater treatment plants, and well below levels thought to induce cytotoxic effects (e.g., the US Environmental Protection Agency (EPA) sets secondary drinking water limits of 1 × 10 −6 g.L −1 silver) [104][105][106]. Results indicated that small traces of silver leached into the solution up to 1.7 × 10 −7 g•L −1 silver per sample for Ag-rGO and 2.3 × 10 −7 g•L −1 for AgNP, respectively [107,108]. This is in contrast to past reports of leaching between 1.5-5.7 × 10 −3 g•L −1 of silver from various textile samples, by Ureyen et al, under similar testing conditions.…”

Section: Nanoparticle-impregnated Polyviscose Substrate Synthesismentioning

confidence: 99%

Durable Antimicrobial Behaviour from Silver-Graphene Coated Medical Textile Composites

et al. 2019

View full text Add to dashboard Cite

Silver nanoparticle (AgNP) and AgNP/reduced graphene oxide (rGO) nanocomposite impregnated medical grade polyviscose textile pads were formed using a facile, surface-mediated wet chemical solution-dipping process, without further annealing. Surfaces were sequentially treated in situ with a sodium borohydride (NaBH4) reducing agent, prior to formation, deposition, and fixation of Ag nanostructures and/or rGO nanosheets throughout porous non-woven (i.e., randomly interwoven) fibrous scaffolds. There was no need for stabilising agent use. The surface morphology of the treated fabrics and the reaction mechanism were characterised by Fourier transform infrared (FTIR) spectra, ultraviolet-visible (UV–Vis) absorption spectra, X-ray diffraction (XRD), Raman spectroscopy, dynamic light scattering (DLS) energy-dispersive X-ray analysis (EDS), and scanning electron microscopic (SEM). XRD and EDS confirmed the presence of pure-phase metallic silver. Variation of reducing agent concentration allowed control over characteristic plasmon absorption of AgNP while SEM imaging, EDS, and DLS confirmed the presence of and dispersion of Ag particles, with smaller agglomerates existing with concurrent rGO use, which also coincided with enhanced AgNP loading. The composites demonstrated potent antimicrobial activity against the clinically relevant gram-negative Escherichia coli (a key causative bacterial agent of healthcare-associated infections; HAIs). The best antibacterial rate achieved for treated substrates was 100% with only a slight decrease (to 90.1%) after 12 equivalent laundering cycles of standard washing. Investigation of silver ion release behaviours through inductively coupled plasmon optical emission spectroscopy (ICP-OES) and laundering durability tests showed that AgNP adhesion was aided by the presence of the rGO host matrix allowing for robust immobilisation of silver nanostructures with relatively high stability, which offered a rapid, convenient, scalable route to conformal NP–decorated and nanocomposite soft matter coatings.

show abstract

Section: Nanoparticle-impregnated Polyviscose Substrate Synthesismentioning

confidence: 99%

Durable Antimicrobial Behaviour from Silver-Graphene Coated Medical Textile Composites

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Zhao et al 11 reported an ingenious and efficient strategy to deposit polyaniline/cobalt−nickel coatings onto lyocell fabrics. Wang et al 12 prepared silver/reduced graphene oxide-coated polyester (PET) fabrics, and Esmaeili et al 13 manufactured superhydrophobic coatings by the solidification of soaking glass and paper substrates in molten AKD. Further, Duan et al 14 compared shielding effectiveness between the electromagnetic shielding fabrics prepared by full penetration method and coating method, respectively, and the results show that the full penetration method has better EMSE value than coating method.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic interference shielding characteristics of a core layer-coated fabric with excellent hand-feel characteristics

Yang

Jiang

et al. 2020

Journal of Engineered Fibers and Fabrics

View full text Add to dashboard Cite

Electromagnetic shielding fabric (ESF) is a novel electromagnetic shielding product with portability, flexibility, and good mechanical properties. However, the existing ESFs suffer from poor washing fastness of coating and poor comfort performance in terms of hand-feel characteristic. In this study, a core layer-coated yarn (CLCY) was successfully spun using a carboxylic acid-functionalized multi-walled carbon nanotube/polypyrrole/Fe3O4 composite suspension with polyvinyl butyral as an adhesive agent. To better explore the properties, the original fabric and treated fabrics, viz., core layer-coated fabric (CLCF) and surface layer-coated fabric (SLCF), were characterized by several methods. Scanning electron microscopic observations revealed that the coating was on the core layer in CLCF. In addition, the Fourier-transform infrared spectroscopy and X-ray diffraction spectroscopy results revealed that the composition of the coating corresponds with that in the multi-composite suspension. Moreover, the coating of CLCY formed a conductive path with good conductivity in the core layer, but the conductivity of the coating on the surface layer of SLCF deteriorated sharply after washing. Further, compared with the original fabric and SLCF, CLCF has highest breaking strength (after 10 washes), and keeps a relatively good hand-feel characteristic. Finally, the evaluated electromagnetic interference shielding characteristics reveal that the fastness of coating affects the electromagnetic shielding effectiveness, suggesting that the wrapped protection of outside staple fibers in CLCF reduce the loss of coating in the core layer during washing. However, the coating on the surface layer in SLCF could be washed away easily.

show abstract

“…ELD of silver (Ag) on synthetic textiles has been widely reported because it offers high electronic conductivity and can be used for antibacterial and electromagnetic shielding applications. [10][11][12][13][14] However, cotton, a natural textile that is one of the most widely produced textiles for clothing, cannot be readily coated with Ag using ELD because of its extreme surface roughness/ disorder and varying surface energy. Uniformly coating cotton with silver necessitates the use of multistep surface pretreatments, such as chemical etching, coating with adhesive polymers or impregnation with nucleation directors, to encourage metal nano-or microparticle binding on the cotton surface.…”

Section: Introductionmentioning

confidence: 99%

Wash-stable, oxidation resistant conductive cotton electrodes for wearable electronics

et al. 2019

View full text Add to dashboard Cite

show abstract

Preparation of silver/reduced graphene oxide coated polyester fabric for electromagnetic interference shielding

Abstract: In this study, silver/reduced graphene oxide (Ag/RGO) coated polyester (PET) fabrics with dopamine as adhesive agent were prepared through an efficient chemical reduction method under microwave irradiation.

Cited by 49 publications

References 33 publications

Durable Antimicrobial Behaviour from Silver-Graphene Coated Medical Textile Composites

Durable Antimicrobial Behaviour from Silver-Graphene Coated Medical Textile Composites

Electromagnetic interference shielding characteristics of a core layer-coated fabric with excellent hand-feel characteristics

Wash-stable, oxidation resistant conductive cotton electrodes for wearable electronics

Contact Info

Product

Resources

About