Electrical Surface Resistivity of Polyaniline Coated Woven Fabrics

Perumalraj, R.

doi:10.4172/2165-8064.1000196

Cited by 5 publications

(3 citation statements)

References 25 publications

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“…Lin et al measured the electrical resistance during tensile loading on blended yarns consisting of polypropylene (PP) and polyethylene terephthalate (PET) coated with multi-walled carbon nanotubes (MWCNT) [14]. Perumalraj investigated the effect of the resistance on polyaniline (PANI) impregnated polyester/viscose, Bamboo, Bamboo/cotton and cotton fabrics [15]. Hansen et al showed that Poly(3,4-ethylenedioxythiophene) and aliphatic polyurethane substrate retained conductive property during stretching and relaxation [16].…”

Section: Introductionmentioning

confidence: 99%

Flexible Textile Strain Sensor Based on Copper-Coated Lyocell Type Cellulose Fabric

et al. 2019

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Integration of sensors in textile garments requires the development of flexible conductive structures. In this work, cellulose-based woven lyocell fabrics were coated with copper during an electroless step, produced at 0.0284 M copper sulfate pentahydrate, 0.079 M potassium hydrogen L-tartrate, and 0.94 M formaldehyde concentrations. High concentrations led to high homogeneous copper reaction rates and the heterogeneous copper deposition process was diffusion controlled. Thus, the rate of copper deposition did not increase on the cellulose surface. Conductivity of copper coatings was investigated by the resistance with a four probe technique during fabric deformation. In cyclic tensile tests, the resistance of coated fabric (19 × 1.5 cm2) decreased from 13.2–3.7 Ω at 2.2% elongation. In flex tests, the resistance increased from 5.2–6.6 Ω after 5000 bending cycles. After repeated wetting and drying cycles, the resistance increased by 2.6 × 105. The resistance raised from 11–23 Ω/square with increasing relative humidity from 20–80%, which is likely due to hygroscopic expansion of fibers. This work improves the understanding of conductive copper coating on textiles and shows their applicability in flexible strain sensors.

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Section: Introductionmentioning

confidence: 99%

Flexible Textile Strain Sensor Based on Copper-Coated Lyocell Type Cellulose Fabric

et al. 2019

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“…Numerous authors have addressed the issue related to the measurement of electrical resistivity in different areas [17,18,19]. In the particular case of the textile world, several methodologies have been defined and used to obtain some electrical parameter, especially electrical resistivity [20,21,22]. There are different classifications depending on the range of values of this parameter; textiles have been classified into four large groups according to their utility [23]: insulators (do not allow electrical conduction, ρ> 1012 Ω cm), antistatic (provide antistatic protection, 107 Ω cm < ρ< 1012 sans-serifΩ cm), electrothermal (heat generators, 103 Ω cm < ρ< 107sans-serifΩ cm) and conductors (data transmission, ρ < 103 sans-serifΩ cm).…”

Section: Methodsmentioning

confidence: 99%

Effects of Environmental Conditions and Composition on the Electrical Properties of Textile Fabrics

González

Ovejero

Murciego

et al. 2019

Sensors

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In our day to day life, the environmental conditions, and especially the temperature and humidity of the air that surrounds us, go unnoticed. However, in many cases, these parameters play an important role in the use of materials since they modify their electrical properties. It is necessary to predict what this behaviour will be as these environmental conditions can introduce or improve desirable properties in the material, especially of textiles. The nature of these is to be dielectric, and therefore have a minimal DC electrical conductivity that is currently impossible to measure directly, so a methodology has been proposed to obtain the DC electrical resistivity through the method of discharging a condenser. For this purpose, a system was developed based on a static voltmeter, a climatic chamber and a control and data capture units. In order to validate the proposed system and methodology a study using both is described in this work. The study made it possible to verify that the most influential factor in establishing the values of the electrical parameters of a textile material is the nature of the fibres of which it is composed, although the influence of environmental conditions in fibres is also significant.

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“…The molecular weight and color of the PANI depend on the chemical composition of the reactants, concentration, and reaction conditions used for its synthesis. The parameters affecting the electrical conductivity of PANI-coated fabrics include the amount of polymer deposition, density, structure, and nature, which is evident due to a high number of picks per inch, resulting in lower surface resistivity [89,90]. For example, Madhusoothanan et al investigated the electrical resistivity of PANI/PET fabrics prepared via in situ polymerization with different weaving patterns of twill, satin, and plain, and 50-80 picks per inch.…”

Section: Electrical Conductivitymentioning

confidence: 99%

Polyaniline for Smart Textile Applications

Abilevitch,

Mizrahi,

Cohen

et al. 2023

Trends and Developments in Modern Applications of Polyaniline

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With the development of smart and functional textiles, electro-conductive fabrics based on polyaniline have attracted much attention due to its unique chemical structure, ease of preparation, flexibility, stability, excellent electrical conductivity, and sensing properties. As a result, polyaniline-based fabrics are widely used in various applications, including electromagnetic shielding, electronics, sensing, monitoring, and biomedicine. This chapter reviews the state-of-the-art technologies for fabricating polyaniline-coated woven, non-woven, and knitted fabrics based on natural and synthetic polymers, describing the fabrication methods, characterization techniques, and applications.

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Electrical Surface Resistivity of Polyaniline Coated Woven Fabrics

Cited by 5 publications

References 25 publications

Flexible Textile Strain Sensor Based on Copper-Coated Lyocell Type Cellulose Fabric

Flexible Textile Strain Sensor Based on Copper-Coated Lyocell Type Cellulose Fabric

Effects of Environmental Conditions and Composition on the Electrical Properties of Textile Fabrics

Polyaniline for Smart Textile Applications

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