Conductivity and EMI shielding efficiency of polypyrrole and metal compounds coated on (non) woven fabrics

Lee, C.Y.; Lee, D.E.; Joo, Jinho; Kim, M.S.; Lee, Jin Yong; Jeong, Sung Hoon; Byun, S.W.

doi:10.1016/s0379-6779(00)01280-7

Cited by 37 publications

(15 citation statements)

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“…2.8 dB for PPy, respectively. The data obtained in this work correspond with the results published in literature for both conductive polymers deposited on different textile substrates [5,65,66,[70][71][72][73]. It should be noted that the EMI SE values depend strongly on the conductive polymer deposition methods, surface mass of polymer deposited as well as the type of doping agent.…”

Section: Application Of Pani and Ppy Conductive Textiles In Emi Shielsupporting

confidence: 86%

“…The usage of conducting polymers for electromagnetic shielding has many advantages such as an absorption-dominant shielding effectiveness [60]. The conducting polymers which are used most frequently for this purpose are polyaniline and polypyrrole [5,[61][62][63][64][65][66][67][68][69] In order to increase EMI shielding efficiency (EMI SE), the use of multilayers of PANI or PPy on PAN fabric was proposed. Multilayers 18.…”

Section: Application Of Pani and Ppy Conductive Textiles In Emi Shielmentioning

confidence: 99%

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In-situ deposition of polyaniline and polypyrrole electroconductive layers on textile surfaces by the reactive ink-jet printing technique

et al. 2015

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Section: Application Of Pani and Ppy Conductive Textiles In Emi Shielsupporting

confidence: 86%

Section: Application Of Pani and Ppy Conductive Textiles In Emi Shielmentioning

confidence: 99%

In-situ deposition of polyaniline and polypyrrole electroconductive layers on textile surfaces by the reactive ink-jet printing technique

et al. 2015

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“…80 dB, implying the potential military applications of the fabrics. 75,76 The contribution of absorption to the total EMI SE was higher for the PPY-AQSA/PPY-NSA/fabric without Ag and lower for those with Ag, and vice versa for the contribution of reflection to the total EMI SE of the fabric, 36 confirming the EMI shielding characteristics of PPY as an excellent radio frequency and microwave absorber, which was due to the deeper skin depth of PPY (or PANI) than metals. 76 EMI SE of the PPY/PET fabric increased with conductivity, 77 as the same relationship reported for many ICP based systems, 27,54,[61][62][63]67 and the increase was resulted dominantly from reflection rather than absorption.…”

Section: Emi Shielding With Ppymentioning

confidence: 70%

“…Joo and coworkers 36,75,76 extensively studied the EMI shielding performances of PPY coated (non) fabrics (PET, polyethylene, or polyester), chemically or electrochemically, over the range from 50 MHz to 1.5 GHz by ASTM 4935-99 or ASTM 4935-89 method. In the chemical process, fabrics were firstly absorbed with pyrrole and PVA (as a surfactant to make PPY well coated) and then oxidized with ammonium persulfate as oxidant and naphthalene sulfonic acid (NSA) as dopant.…”

Section: Emi Shielding With Ppymentioning

confidence: 99%

Intrinsically conducting polymers for electromagnetic interference shielding

Wang

Jing

2005

Polymers for Advanced Techs

537

274

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This paper summarizes and reviews the research on electromagnetic interference (EMI) shielding with intrinsically conducting polymers (ICPs), mainly polyaniline (PANI) and polypyrrole (PPY), and their composites in various frequency ranges. ICPs are new alternative candidates for EMI shielding applications due to their lightweight, corrosion resistance, ease of processing, and tunable conductivities as compared with typical metals. More importantly, the dominant shielding characteristic of absorption other than that of reflection for metals render ICPs more promising materials in applications requiring not only high EMI shielding effectiveness but also shielding by absorption, such as in stealth technology.

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“…The methods used to incorporate conductive materials with the fibres or yarns needs sophisticated processes and/or equipment which compromises large scale production. In contrast, process complications can be reduced considerably by incorporating conductive materials directly onto preformed textiles fabrics using polymerisation, deposition of metals, weaving or integration of metal fibres or wires [1,13,[15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a graphene coated nonwoven textile for industrial applications

et al. 2016

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A cost effective electrically conductive textile for large scale applications would revolutionise numerous industries. Herein, we demonstrate a novel processing approach to produce conductive textiles for industrial applications. A conductive nonwoven textile was successfully fabricated using a simple dip coating method. The nonwoven polyester was coated with liquid crystallite graphene oxide with subsequent non-toxic chemical reduction. The process is readily scalable. The graphene coated fabric has been characterized by electron microscopy as well as by electrical, mechanical, thermal and abrasion resistance measurements. It was found that the electrical surface resistivity of the prepared polyester-graphene composite fabric was 330 Ω □-1. The electrical surface resistivity was 3 and 150 times lower than that of polypyrrole coated woven polyester fabric and graphene coated nonwoven fabrics, respectively, in previously published reports. The hybrid polyester-graphene textile prepared here should find applications in high-performance geotextiles or as heating elements. Fabrication of Graphene Coated Nonwoven Textile for Industrial ApplicationsDharshika Kongahge, Javad Foroughi * , Sanjeev Gambhir, Geoffrey M. Spinks, Gordon G. Wallace A cost effective electrically conductive textile for large scale applications will revolutionise many industries. Herein, we demonstrate a novel processing approach to produce conductive textiles for industrial applications. The conductive nonwoven textile was successfully fabricated using a simple dip coating method. The polyester nonwoven was coated with liquid crystallite graphene oxide with subsequent non-toxic chemical reduction. The process is readily scalable. The graphene coated fabric has been characterized by electron microscopy as well as electrical, mechanical, thermal and abrasion resistance measurements. It was found that the electrical surface resistivity of the prepared polyester-graphene composite fabric was 330 Ω/□. The electrical surface resistivity was 3 and 150 times lower than that of polypyrrole coated woven polyester fabric and graphene coated nonwoven fabrics which were published previously. The hybrid polyestergraphene textile prepared here should find application as high-performance geotextiles or as heating elements.

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Conductivity and EMI shielding efficiency of polypyrrole and metal compounds coated on (non) woven fabrics

Cited by 37 publications

References 0 publications

In-situ deposition of polyaniline and polypyrrole electroconductive layers on textile surfaces by the reactive ink-jet printing technique

In-situ deposition of polyaniline and polypyrrole electroconductive layers on textile surfaces by the reactive ink-jet printing technique

Intrinsically conducting polymers for electromagnetic interference shielding

Fabrication of a graphene coated nonwoven textile for industrial applications

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