Polypyrrole Based Electro-Conductive Cotton Yarn

Maity, Subhankar; Chatterjee, Arobindo

doi:10.4172/2165-8064.1000171

Cited by 8 publications

(7 citation statements)

References 12 publications

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“…They can combine the electrical property of metals or semiconductors with the benefit of conventional polymers such as price, structural diversity, flexibility and durability [76], which makes them an ideal choice for textile-based electrodes. Among the conductive polymers, polypyrrole (PPy), polyaniline (PANI) and polythiophene derivative poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) are the most successful in the production of conductive textile [77]. The conductivity of the polymers can be enhanced by adding organic solvents called dopants, for instance, the conductivity of PEDOT:PSS can be enhanced from one to three orders of magnitude by adding polar organic solvents like ethylene glycol, dimethyl sulfoxide, glycerol [78][79][80][81].…”

Section: Intrinsically Conductive Polymersmentioning

confidence: 99%

Integration of Conductive Materials with Textile Structures, an Overview

Tseghai

Malengier

Fante

et al. 2020

Sensors

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In the last three decades, the development of new kinds of textiles, so-called smart and interactive textiles, has continued unabated. Smart textile materials and their applications are set to drastically boom as the demand for these textiles has been increasing by the emergence of new fibers, new fabrics, and innovative processing technologies. Moreover, people are eagerly demanding washable, flexible, lightweight, and robust e-textiles. These features depend on the properties of the starting material, the post-treatment, and the integration techniques. In this work, a comprehensive review has been conducted on the integration techniques of conductive materials in and onto a textile structure. The review showed that an e-textile can be developed by applying a conductive component on the surface of a textile substrate via plating, printing, coating, and other surface techniques, or by producing a textile substrate from metals and inherently conductive polymers via the creation of fibers and construction of yarns and fabrics with these. In addition, conductive filament fibers or yarns can be also integrated into conventional textile substrates during the fabrication like braiding, weaving, and knitting or as a post-fabrication of the textile fabric via embroidering. Additionally, layer-by-layer 3D printing of the entire smart textile components is possible, and the concept of 4D could play a significant role in advancing the status of smart textiles to a new level.

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Section: Intrinsically Conductive Polymersmentioning

confidence: 99%

Integration of Conductive Materials with Textile Structures, an Overview

Tseghai

Malengier

Fante

et al. 2020

Sensors

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“…Literature says that in situ polymerization methods are very suitable for applications of conductive polypyrrole to textiles [12][13][14][15][16][17]. These electroconductive textiles are proposed to be used in various applications such as heating pads [3], EMI shielding [16,17], and sensors [2,14,15]. There are few works reported in the literature regarding sensory applications of polypyrrole polymers in pure form or embedded in other structures [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Textile/Polypyrrole Composites for Sensory Applications

Maity

Chatterjee

2015

Journal of Composites

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Electrically conductive woven, knitted, and nonwoven composite fabrics are prepared by in situ chemical polymerization of pyrrole using suitable oxidant and dopant. These composite fabrics show surface resistivity in the range ∼1 to 2 kΩ. These composite fabric can alter their resistivity with various stimuli such as mechanical strain, pH, and humidity. So, in the present study, their response to pH, humidity, and mechanical strain is investigated. For all fabrics, similar behaviour has been observed regarding pH versus resistivity. The resistance of the composite fabric increases with the increase of alkalinity of pH. However, as bending strain increases, resistance steeply decreases for cotton fabrics, steeply increases for polyester fabrics, and initially decreases and then increases for wool fabrics. Regarding humidity sensitivity, sigmoid curves have been obtained for all kinds of fabrics.

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“…It is known that twisting yarn compresses the fibers as well as shearing, joining, and arranging them into a more compact structure. It is to be expected that this creates additional and alternative electrically conductive contacts that directly affect the overall electrical conductivity of the yarn [ 9 ]. Accordingly, it can be assumed that similar or identical behavior of ECY used for textile sensors increases the number of shares or twists required to improve the linearity such that the sensitivity could achieve the minimum requirements [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

The Impact of Elongation on Change in Electrical Resistance of Electrically Conductive Yarns Woven into Fabric

Knezić

Penava

et al. 2021

Materials

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Electrically conductive yarns (ECYs) are gaining increasing applications in woven textile materials, especially in woven sensors suitable for incorporation into clothing. In this paper, the effect of the yarn count of ECYs woven into fabric on values of electrical resistance is analyzed. We also observe how the direction of action of elongation force, considering the position of the woven ECY, effects the change in the electrical resistance of the electrically conductive fabric. The measurements were performed on nine different samples of fabric in a plain weave, into which were woven ECYs with three different yarn counts and three different directions. Relationship curves between values of elongation forces and elongation to break, as well as relationship curves between values of electrical resistance of fabrics with ECYs and elongation, were experimentally obtained. An analytical mathematical model was also established, and analysis was conducted, which determined the models of function of connection between force and elongation, and between electrical resistance and elongation. The connection between the measurement results and the mathematical model was confirmed. The connection between the mathematical model and the experimental results enables the design of ECY properties in woven materials, especially textile force and elongation sensors.

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Polypyrrole Based Electro-Conductive Cotton Yarn

Cited by 8 publications

References 12 publications

Integration of Conductive Materials with Textile Structures, an Overview

Integration of Conductive Materials with Textile Structures, an Overview

Textile/Polypyrrole Composites for Sensory Applications

The Impact of Elongation on Change in Electrical Resistance of Electrically Conductive Yarns Woven into Fabric

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