Minimizing frictional sound of PU-Nanoweb and PTFE film laminated vapor permeable water repellent fabrics

Cho, Soomin; Cho, Gilsoo

doi:10.1007/s12221-012-0123-y

Fibers Polym

2012

DOI: 10.1007/s12221-012-0123-y

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Minimizing frictional sound of PU-Nanoweb and PTFE film laminated vapor permeable water repellent fabrics

Soomin Cho

Gilsoo Cho

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Cited by 4 publications

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“…At stress-state, the fabric frictional sound was generated and the participant was allowed to hear the sound[31] while the ECG signals were measured. The frictional sound of combat uniform fabrics with woodland pattern for water repellent function was adopted to stimulate the participant, and Cho and Cho[32]…”

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PU nanoweb-based textile electrode treated with single-walled carbon nanotube/silver nanowire and its application to ECG monitoring

Lee

Cho²

2019

Smart Mater. Struct.

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This paper is a research on textile electrodes fabricated by applying single-walled carbon nanotube (SWCNT) and silver nanowire (AgNW) to polyurethane (PU) nanoweb for monitoring electrocardiography (ECG) signals. In order to impart electrical conductivity, PU nanoweb was treated with SWCNT and AgNW. The PU nanoweb was dipped into 15 g of SWCNT dispersion mixed with 5 g of AgNW dispersion, and it was also treated with heat post-treatment and ethanol pre-treatment for enhanced conductivity. The electrical properties were evaluated by electrical linear resistance and impedance. The tensile properties were measured by Instron. By using the treated specimens, the wearable textile sensors were fabricated and verified to properly act as ECG electrodes via wear-trials compared to the conventional ECG electrode. To compare the ECG signals between Ag/AgCl electrode and textile electrodes, morphology of waveforms was compared and statistical analysis was also conducted. The results of the electrical properties showed that specimens SA1-H, SA1-E, and SA1-HE was much lower than SA1, and especially, SA1-H showed the lowest resistance. It corresponded to the results of impedance that specimen SA1 had the highest and specimen SA1-H had the lowest value. The results of the tensile properties showed that specimen SA1-H had higher tensile strength and elongation at break than the untreated. And, the results of the wear-trials showed that specimen SA1-H had the performance for ECG signals monitoring regardless of rest/stress-states, age, sex, and BMI index of the participants. Thus, it confirmed that the wearable textile sensors fabricated by using the SWCNT/AgNW treated PU nanoweb was suitable for ECG monitoring. Based on the results, it should have approximately 10 Ω cm −1 when applied as the ECG electrode for longterm bio-monitoring smart clothing.

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confidence: 99%

PU nanoweb-based textile electrode treated with single-walled carbon nanotube/silver nanowire and its application to ECG monitoring

Lee

Cho²

2019

Smart Mater. Struct.

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Exploration of AgNW/PU nanoweb as ECG textile electrodes and comparison with Ag/AgCl electrodes

et al. 2017

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Study on the Friction Sound Properties of Natural-Fiber Woven Fabrics

Wang

Cheng

et al. 2017

Fibres and Textiles in Eastern Europe

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An innovative frictional sound automatic measuring system (FSAMS) was designed and used in this study to investigate the frictional sound generated when natural-fibre woven fabrics are rubbed together. Frictional sound measurements made using the automatic FSAMS were compared with those from a manual frictional sound measuring system (Manual FSAMS). The frictional sounds of four natural-fiber woven fabrics (i.e., cotton, linen, silk, and wool) were recorded; the Fast Fourier Transform method was used to convert time domain signals into frequency domain signals, and the maximum sound amplitude (MSA) and level pressure of the total sound (LPTS) of cotton, linen, silk, and wool were calculated. The results of a t test, analysis of variance, data reproducibility, and cluster spectrums measured from the four natural-fiber woven fabrics were compared for the two test equipment systems. The results from the t test and analysis of variance showed significant differences in the MSA and LPTS measured. Data reproducibility was superior to the automatic FSAMS compared with the manual FSAMS, and the cluster spectrums were more readily distinguishable.

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Minimizing frictional sound of PU-Nanoweb and PTFE film laminated vapor permeable water repellent fabrics

Cited by 4 publications

References 3 publications

PU nanoweb-based textile electrode treated with single-walled carbon nanotube/silver nanowire and its application to ECG monitoring

PU nanoweb-based textile electrode treated with single-walled carbon nanotube/silver nanowire and its application to ECG monitoring

Exploration of AgNW/PU nanoweb as ECG textile electrodes and comparison with Ag/AgCl electrodes

Study on the Friction Sound Properties of Natural-Fiber Woven Fabrics

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