Preparation and characterization of copper-coated polyester fabric pretreated with laser by magnetron sputtering

Peng, Linghui; Guo, Ronghui; Lan, Jianwu; Jiang, Shou-xiang Kinor; Zhang, Zhouyi; Xu, Jiangtao

doi:10.1177/1528083717736101

Cited by 14 publications

(12 citation statements)

References 22 publications

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“…Despite the control samples already display excellent UPF values, the CuNPs enhanced, even more, the light reflection and scattering, and consequently the UPF increased. 44 In the samples with the higher concentration of CuNPs, the UPF increased from 56.2 to 56.8 for untreated PET to 110. corresponds to superior UV protection. 45,46 Overall, the sample pH 11-No DBD showed the greatest UPF value.…”

Section: Resultsmentioning

confidence: 95%

In Situ Synthesis of Copper Nanoparticles on Dielectric Barrier Discharge Plasma-Treated Polyester Fabrics at Different Reaction pHs

Mehravani

Ribeiro

Cvelbar

et al. 2022

ACS Appl. Polym. Mater.

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Polyester (PET) fabrics are widely applied in functional textiles due to their outstanding properties such as high strength, dimensional stability, high melting point, low cost, recyclability, and flexibility. Nevertheless, the lack of polar groups in the PET structure makes its coloration and functionalization difficult. The present work reports the one-step in situ synthesis of copper nanoparticles (CuNPs) onto the PET fabric employing sodium hypophosphate and ascorbic acid as reducing and stabilizing agents, at acidic (pH 2) and alkaline pH (pH 11). This synthesis (i) used safer reagents when compared with traditional chemicals for CuNP production, (ii) was performed at a moderate temperature (85 °C), and (iii) used no protective inert gas. The dielectric barrier discharge (DBD) plasma was used as an environmentally friendly method for the surface functionalization of PET to enhance the adhesion of CuNPs. The size of the CuNPs in an alkaline reaction (76–156 nm for not treated and 93.4–123 nm for DBD plasma-treated samples) was found to be smaller than their size in acidic media (118–310 nm for not treated and 249–500 nm for DBD plasma-treated samples), where the DBD plasma treatment promoted some agglomeration. In acidic medium, metallic copper was obtained, and a reddish color became noticeable in the textile. In alkaline medium, copper(I) oxide (Cu2O) was detected, and the PET samples exhibited a yellow color. The PET samples with CuNPs presented improved ultraviolet protection factor values. Finally, a minimal concentration of copper salt was studied to obtain the optimized antibacterial effect against Staphylococcus aureus and Escherichia coli. The functionalized samples showed strong antibacterial efficacy using low-concentration solutions in the in situ synthesis (2.0 mM of copper salt) and even after five washing cycles. The DBD plasma treatment improved the antibacterial action of the samples prepared in the alkaline medium.

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Section: Resultsmentioning

confidence: 95%

In Situ Synthesis of Copper Nanoparticles on Dielectric Barrier Discharge Plasma-Treated Polyester Fabrics at Different Reaction pHs

Mehravani

Ribeiro

Cvelbar

et al. 2022

ACS Appl. Polym. Mater.

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“…Electrical conductivity. The surface electrical resistivity of different samples was measured by using a four-point probe system with a linear probe head (model: SZT-2C, Suzhou Tongchuang Electronics Co., Ltd., China) [41,42] according to ASTM D257-14 standard at 22 C temperature and 40% relative humidity. The measurements of each sample were conducted for ten times on both vertical and horizontal directions of the samples, and the average was used for evaluation.…”

Section: Smentioning

confidence: 99%

Surface modification of PE/PET by two-step method with graphene and silver nanoparticles for enhanced electrical conductivity

Zhuo

Chen

Xin

et al. 2021

Journal of Industrial Textiles

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Polyethylene/polyethylene terephthalate (PE/PET) nonwoven fabrics were first modified with a continuous graphene layer by using a dipping process, and then deposited with silver nanoparticles (AgNPs) by using magnetron sputtering, and that is a novel method called two-step method. Graphene/PE/PET (GPP) and AgNPs sputtered GPP (AGPP) were prepared to investigate the modification processes on the electrical conductivity of the nonwoven fabrics. The influence of the surface modification by silane coupling agent (KH-560) on the durability of conductive PE/PET composited fabrics is also studied. Surface morphology, chemical structure, thermal stability, electrical conductive and ultraviolet protection properties of the composite fabrics were investigated. The results indicated KH-560 treatment can obviously improve the interfacial adhesion between the graphene and PE/PET then contributes to the enhanced conductive durability of the composite fabrics. The combination of graphene and AgNPs provided more opportunities for the charge transfer paths of AGPP, leading to an improved conductive network and an increased electrical conductivity. In addition, graphene and AgNPs gave GPP and AGPP excellent thermal stability. The research exhibited the advantages of the two-step method, and also indicated AGPP has a promising application for the preparation of wearable electronics.

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“…Synthetic fibers have the characteristics of simple structure, easy processing, good mechanical strength, and acid and alkali resistance. Polyester fiber is the commonly used in clothing applications, which is more suitable to prepare conductive fabrics by a finishing method, such as dipping, 20 coating, 21 printing, 22 and spraying 15 methods. However, it is a great challenge to deposit silver stably on the hydrophobic polyester fabrics and obtain strong adhesion due to the low surface activity of silver.…”

Section: Introductionmentioning

confidence: 99%

Conductive Polyester Fabrics with High Washability as Electrocardiogram Textile Electrodes

Wang

Yile

et al. 2022

ACS Appl. Polym. Mater.

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Textile electrodes for electrocardiogram (ECG) acquisition should be highly surface conductive and resistant to deterioration during the use of smart clothes in washing, stretching, and bending. In order to obtain conductive fabrics with great potential for practical application in ECG acquisition, thiol groups grafted polyester fabrics were coated with a condensed silver layer via electroless plating, where the electrical resistance was as low as 7.18 mΩ/sq. The stability of the conductive coating on the fabric in application was studied in the process of elongation, bending, oxidation, and washing. Polyester fiber has a high elasticity, the silver layer presented fracture trend after elongation, and the electrical resistance reached 14.74 mΩ/sq after 20% elongation. The conductivity of the fabric was less affected by bending, and silver layer fell off a little after 3000 bending cycles. After being placed in a constant temperature and humidity environment, the electrical resistance was almost unchanged after 9 weeks. The surface square resistance of the fabric is 0.93 Ω/sq after 200 washing cycles because of the high adhesion of silver layer to the thiol groups modified fabrics. The textile electrodes were embedded in smart garment to capture the ECG signals of a human in running states. The ECG waveform was still clear after 200 washing cycles and the measured heart rate increased with the increase of movement speed. The excellent performance of as-prepared conductive fabrics shows the feasibility as textile electrodes in ECG acquisition for practical application.

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Preparation and characterization of copper-coated polyester fabric pretreated with laser by magnetron sputtering

Cited by 14 publications

References 22 publications

In Situ Synthesis of Copper Nanoparticles on Dielectric Barrier Discharge Plasma-Treated Polyester Fabrics at Different Reaction pHs

In Situ Synthesis of Copper Nanoparticles on Dielectric Barrier Discharge Plasma-Treated Polyester Fabrics at Different Reaction pHs

Surface modification of PE/PET by two-step method with graphene and silver nanoparticles for enhanced electrical conductivity

Conductive Polyester Fabrics with High Washability as Electrocardiogram Textile Electrodes

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