Production of highly conductive textile viscose yarns by chemical vapor deposition technique: a route to continuous process

Bashir, Tariq; Skrifvars, Mikael; Persson, Nils‐Krister

doi:10.1002/pat.1748

Cited by 73 publications

(72 citation statements)

References 30 publications

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“…The obtained surface conductivity was, however, relatively low, 0.75 S/cm for PEDOT/nylon‐6 and 0.42 S/cm for PEDOT/SF composites. Furthermore, the oCVD technique has widely been used and optimized to produce conductive fabrics by coating a variety of textile substrates with different conjugated polymers …”

Section: Introductionmentioning

confidence: 99%

OCVD polymerization of PEDOT: effect of pre‐treatment steps on PEDOT‐coated conductive fibers and a morphological study of PEDOT distribution on textile yarns

Bashir

Ali

Cho

et al. 2012

Polymers for Advanced Techs

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The functionalization of textile fibers with intrinsically conductive polymers has become a prominent research area throughout the world. A number of coating techniques have already been utilized and optimized to get the uniform layers of conductive polymers on the surface of different substrates. In our previous study, we produced poly(3,4‐ethylenedioxythiophene) (PEDOT)‐coated conductive fibers by employing oxidative chemical vapor deposition (oCVD) technique. This paper describes the effects of pre‐treatment steps, such as surface treatment of textile fibers with organic solvents, drying of oxidant‐enriched fibers at variable temperatures and time, and oxidant type on the electrical, mechanical, and thermal properties of PEDOT‐coated conductive fibers. Two well‐known oxidants, ferric(III)chloride and ferric(III)p‐toluenesulfonate (FepTS), were studied, and then their results were compared. In order to verify the PEDOT‐coated layer and, to some extent, its impregnation inside the viscose yarns, a morphological study was carried out by using the attenuated total reflectance Fourier transform infrared spectroscopic imaging technique and computed tomography scanning across the obtained conductive fibers. Differential scanning calorimetric and thermogravimetric analysis were utilized to investigate the thermal properties and the contents of PEDOT in PEDOT‐coated fibers. The mechanical properties of conductive fibers were evaluated by tensile strength testing of produced fibers. Effects of all of these pre‐treatment steps on electrical properties were analyzed with Kiethly picoammeter. This study cannot only be exploited to improve the properties of conductive fibers but also to optimize the oCVD process for the production of conductive textile fibers by coating with different conjugated polymers. Copyright © 2012 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

OCVD polymerization of PEDOT: effect of pre‐treatment steps on PEDOT‐coated conductive fibers and a morphological study of PEDOT distribution on textile yarns

Bashir

Ali

Cho

et al. 2012

Polymers for Advanced Techs

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“…For PEDOT-coated viscose fibers (spectrum b), the characteristic absorption peaks of PEDOT at 1,311 cm -1 (CC), 1,1991,158 cm -1 (CO), and 1,531 cm -1 (CC) and the replacement of viscose absorption peak at 1,642 cm -1 with 1,595 cm -1 shows the presence of PEDOT on the surface of the viscose fibers, which has been discussed more precisely in our previous publication (19) . The electrical properties of PEDOT polymer chains are related to the conjugation length, which corresponds to the absorption peak at 1,595 cm -1 (CC) str .…”

Section: Determination Of Stretch Sensing Propertiesmentioning

confidence: 83%

“…Usually, the CVD process is used to coat the small pieces of substrates, due to which, in our previous experiments (19)(20)25) , we were able to produce only 15 cm long fibers. However, in the present research work, we have made a hundred fold scale increase and prepared 15 m long PEDOT-coated viscose and PES conductive fibers.…”

Section: Resultsmentioning

confidence: 99%

“…In our previous studies, we successfully coated viscose and polyester fibers with highly conductive conjugated polymer, poly(3,4-ethylenedioxythiophene) (PEDOT) using an efficient coating technique called chemical vapor deposition (CVD) and found out the best possible parameters at which good electro-mechanical properties of PEDOT-coated fibers can be achieved (19,20) . Chemical vapor deposition provides smooth and very thin layers of conductive polymers on a multitude of substrates (21)(22)(23)(24) .…”

Section: Introductionmentioning

confidence: 99%

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Stretch sensing properties of conductive knitted structures of PEDOT-coated viscose and polyester yarns

Bashir

Ali

Persson

et al. 2013

Textile Research Journal

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Wearable textile-based stretch sensors, for health-care monitoring, provide physiological and medical evaluation without inhibition in the daily routine life of the patient. In our previous work, we successfully coated viscose and polyester (PES) fibers with conjugated polymer, poly(3,4-ethylenedioxythiophene) (PEDOT) using chemical vapor deposition (CVD) process. In this paper, we have reported the possibility to produce large quantity of PEDOT-coated conductive fibers, which have acceptable mechanical strength and frictional properties so that the knitted stretch-sensors could be produced. By utilizing these knitted structures, we have showed the possibility to produce textile-based monitoring device, which has better integration properties in wearable clothing than metal containing structures. The performance of viscose and polyester knitted structures as stretch sensors was investigated on our own designed cyclic tester. For the imitation of respiratory and joint movement, the variation in electrical properties of knitted structures was examined at 5 to 50% elongations and then the performance of viscose and PES knitted structures was compared on the basis of cyclic testing results. In order to find out the washing effects on PEDOT coatings and the knitted structures, two washing cycles were performed. After washing, the persistence of PEDOT coating on knitted structures was investigated with FT-IR spectroscopy and thermogravimetric analysis. For PES fiber, it was revealed that stretch sensing behavior was still persisted even after the washing cycles. Thus, these structures have the potential to be utilized in medical textiles for monitoring the physiological activities of patients, such as breathing rate and joint movement.

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“…Oxidative chemical vapor deposition (OCVD) is a novel technique to obtain uniform polymer layers on a variety of flexible and rigid substrates that does not require any solvent to be processed while depositing uniform, thin polymer layers on various substrates [26].…”

Section: Industrial-scale Production-line Applicationmentioning

confidence: 99%

Plasma Surface Treatments of Nonwovens

Kayaoğlu¹

2016

Non-Woven Fabrics

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Plasma treatment has been used for surface activation and modification of textiles. The ionized, highly reactive species, such as ions, electrons, and radicals, in plasma modify the surface of the substrate material, and the composition of plasma depends on the gas used. Plasma technology is an environmentally friendly process and resource-efficient in nature. There is no solvent emission or wastewater in the process and drying processes with high energy and time consumption are not required. The textile applications of plasma include sterilization, wettability and hydrophobicity, dyeability enhancement, flame-retardant finishing, and antimicrobial properties. Plasma surface modification applied to fiber is a way to add value to a nonwoven fabric and enhance the functional performance of the final product. This chapter provides an overview of the plasma treatments of nonwovens that enhance their surface-related properties.

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Production of highly conductive textile viscose yarns by chemical vapor deposition technique: a route to continuous process

Cited by 73 publications

References 30 publications

OCVD polymerization of PEDOT: effect of pre‐treatment steps on PEDOT‐coated conductive fibers and a morphological study of PEDOT distribution on textile yarns

OCVD polymerization of PEDOT: effect of pre‐treatment steps on PEDOT‐coated conductive fibers and a morphological study of PEDOT distribution on textile yarns

Stretch sensing properties of conductive knitted structures of PEDOT-coated viscose and polyester yarns

Plasma Surface Treatments of Nonwovens

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