On the modeling of conductive textile materials for SoftWearAntennas

2009 ◽  
Author(s):  
Juha Lilja ◽  
Pekka Salonen
Keyword(s):  
Textile Materials ◽  
Conductive Textile

scholarly journals Tip-Cylinder Electrode Plasma to Enhance the Coating of Conductive Yarn Process

2020 ◽  
Vol 14 (2) ◽  
pp. 213
Author(s):  
Valentinus Galih Vidia Putra ◽  
Lutfi Zulfikar ◽  
Atin Sumihartanti ◽  
Juliany Ningsih Mohamad ◽  
Yusril Yusuf
Keyword(s):  
Electrical Conductivity ◽  
Plasma Treatment ◽  
Plasma Generator ◽  
Textile Yarn ◽  
Textile Materials ◽  
Conductive Yarns ◽  
Coating Method ◽  
Pre Treatment ◽  
Conductive Textile ◽  
Conductive Yarn

This study aims to develop conductive textile materials using a polyester textile yarn by applying a knife coating method and pre-treatment of a tip-cylinder plasma electrode. In this research, carbon ink was coated on polyester staple yarn which was given a pre-treatment with a plasma generator and coated with the knife coating method. The electrical conductivity of conductive yarns produced from this study was divided into two types, as yarns without plasma treatment and with plasma treatment with a ratio of water and carbon ink concentrations of 1:1 and 2:1. The results of the electrical conductivity with plasma treatment and the concentration of carbon ink and water of 1:1 and 1:2 were 69005 (Ωm)-1 and 50144.25 (Ωm)-1, respectively, while the results of the electrical conductivity for threads with concentrations of carbon ink and water of 1:1 and 1:2 without plasma treatment were 18197.64 (Ωm)­‑1  and 8873.54 (Ωm)-1, respectively. The results showed that the concentration of carbon ink and water and plasma treatment affected the conductive value of the yarn. The results also showed that the presence of plasma pre-treatment improved the coating process of conductive ink on the yarn.Keywords: carbon ink; conductive yarn; plasma; textile A B S T R A KPenelitian ini bertujuan untuk mengembangkan bahan tekstil konduktif menggunakan benang tekstil poliester dengan mengaplikasikan metode knife coating dan pre-treatment plasma elektroda tip-cylinder. Pada penelitian ini dilakukan pelapisan dengan tinta karbon pada benang poliester stapel yang diberi perlakuan awal dengan plasma generator dan dilapisi dengan metode pelapisan knife coating. Konduktivitas listrik benang konduktif yang dihasilkan dari penelitian ini dibagi menjadi dua jenis, yaitu benang tanpa perlakuan plasma dan dengan perlakuan plasma dengan perbandingan konsentrasi air dan tinta karbon sebesar 1:1 dan 2:1. Hasil konduktivitas listrik dengan perlakuan plasma dan konsentrasi tinta karbon dan air sebesar 1:1 dan 1:2 masing-masing adalah 69005 (Ωm)‑1 dan 50144,25 (Ωm)-1, sedangkan hasil konduktivitas listrik untuk benang dengan konsentrasi tinta karbon dan air sebesar 1:1 dan 1:2 tanpa perlakuan plasma masing-masing adalah 18197,64 (Ωm)-1 dan 8873,54 (Ωm)-1. Hasil penelitian menunjukkan bahwa konsentrasi tinta karbon dan air serta perlakuan plasma berpengaruh terhadap nilai konduktivitas benang serta adanya pre-treatment plasma dapat meningkatkan proses coating tinta konduktif pada benang.Kata kunci: benang konduktif; plasma; tekstil; tinta karbon 

Conductive polymer-based electro-conductive textile composites for electromagnetic interference shielding: A review

2016 ◽  
Vol 47 (8) ◽  
pp. 2228-2252 ◽  
Author(s):  
Subhankar Maity ◽  
Arobindo Chatterjee
Keyword(s):  
Electromagnetic Interference ◽  
Conductive Polymers ◽  
Conductive Polymer ◽  
Polymer Processing ◽  
Textile Composites ◽  
Electromagnetic Shielding ◽  
Electromagnetic Interference Shielding ◽  
Textile Materials ◽  
Electromagnetic Shield ◽  
Conductive Textile

This article reviews the preparation, development and characteristics of conductive polymer-based electro-conductive textile composites for electromagnetic interference shielding. Modification of ordinary textile materials in the form of electro-conductive composites makes them suitable for this purpose. Various metallic and non-metallic electro-conductive textiles have been explored here as the material for electromagnetic shielding. Different approaches of preparing textile electromagnetic shield have been described here. Recent advancements of application of conductive polymers in the field of textile electromagnetic shielding are described. Conductive polymer-coated textile materials showed superior electrical property as electromagnetic shield. Different methods of applications of conductive polymers onto textile surface are described here with their relative merits and demerits. Different conductive polymer-coated woven and nonwoven fabrics prepared by various researchers for electromagnetic shielding are taken into account. The effects of different process parameters of polymer processing on electromagnetic shielding are described.

Light-emitting textile display with floats for electronics covering

2015 ◽  
Vol 27 (1) ◽  
pp. 34-46 ◽  
Author(s):  
Inese Parkova ◽  
Ivars Parkovs ◽  
Ausma Vilumsone
Keyword(s):  
Electrically Conductive ◽  
Actual Problem ◽  
Content Type ◽  
Light Emitting ◽  
Textile Materials ◽  
Single Piece ◽  
Conductive Yarns ◽  
Conductive Textile ◽  
Weave Pattern ◽  
Electronic Elements

Purpose – Flexible light-emitting textile display is designed with floats for electronic elements covering and electronic contacts insulation what at the same time provides an opportunity to develop aesthetic design of the display in the single piece construction of material. The paper aims to discuss these issues. Design/methodology/approach – Display consists of interwoven electrically conductive yarns, non-conductive yarns and SMD LEDs connected to conductive yarns. Industrial jacquard weaving machine have been used, weave patterns were designed in PC-Edit software. Findings – Weave can be used as a tool to build and evolve electrotextile. Exploring weaving techniques and perceiving electronic circuit as a weave pattern, new approaches can be developed in electrotextile design field. Research limitations/implications – Connections of electronic elements and conductive textile materials still is actual problem what should be explored in further research. Practical implications – Flexible light emitting textile display can be used as output interface integrated into communication clothing by representing different animated images directly on clothing. Display also can be used for accessories, room and auto interior etc. applications. Originality/value – Paper describes method of light source integration directly into textile structure, combining functional and visual design of textile display.

scholarly journals Alkali Treatment to Maximize Adhesion of Polypyrrole Coatings for Electro-Conductive Textile Materials

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Zehra Yildiz
Keyword(s):  
Alkali Treatment ◽  
Oxidative Polymerization ◽  
Xrd Analysis ◽  
Shielding Effectiveness ◽  
Polyester Fabrics ◽  
Textile Materials ◽  
Pyrrole Monomer ◽  
Conductive Textile ◽  
Coated Fabrics ◽  
Fabric Surface

In this paper polyester fabrics were pretreated with alkaline solution to improve the ability for the fabric surface to bond with polypyrrole (PPy) coating layer. In situ chemical oxidative polymerization of pyrrole monomer was performed on alkali treated polyester fabrics. Then the fabrics were characterized by FTIR and XRD analysis. The tensile properties of the yarns in both warp and weft directions were measured after alkali treatment and PPy coating processes. The abrasion resistance test was performed on PPy coated fabrics with and without alkali treatment. The surface electrical resistivity of PPy coated fabrics were searched. The electromagnetic shielding effectiveness (EMSE) properties of fabrics in terms of reflection, absorption and transmission behaviors were also investigated. A significant EMSE value increase (about 27%) was obtained with alkali treatment.

scholarly journals Conductive Textile Coated with Polyaniline

Proceedings ◽  
2020 ◽  
Vol 57 (1) ◽  
pp. 95
Author(s):  
Ana-Maria Mocioiu ◽  
Oana Cătălina Mocioiu
Keyword(s):  
Textile Materials ◽  
Conductive Textile

New trends in the development of conductive coated textile materials include applications. [...]

scholarly journals Analysis of tensile properties for conductive textile yarn

2019 ◽  
Vol 70 (02) ◽  
pp. 116-119 ◽  
Author(s):  
BUHU LILIANA ◽  
NEGRU DANIELA ◽  
LOGHIN EMIL CONSTANTIN ◽  
BUHU ADRIAN
Keyword(s):  
Carbon Black ◽  
Physical And Mechanical Properties ◽  
Average Diameter ◽  
Textile Yarn ◽  
Woven Fabrics ◽  
Point Of View ◽  
Textile Materials ◽  
Carbon Black Nanoparticles ◽  
Conductive Yarns ◽  
Conductive Textile

In this paper conductive yarns were made by coating the yarns with a solution having carbon black nanoparticles (CB) with an average diameter of 18 nm, polyvinyl alcohol (PVA) and water. For a continuous coating deposition it is necessary to obtain a solution of a certain consistency; for this reason, carbon black nanoparticles are mixed with the ingredients so that the resulting film deposited as a thin layer on the yarn to be conductive, and at the same time flexible. The carbon black nanoparticles tend to form aggregates; this is why the solution should be stirred continuously. The yarns used as support are different from the nature, fineness and structure point of view. Several variants of yarns were chosen in order to decide which ones are appropriate for obtaining conductive yarns that keep their specific initial properties. The variants of conductive yarns obtained were tested in terms of physical and mechanical properties (tensile strength, elongation), and from the viewpoint of electrical properties, electrical resistivity was measured. After coating the conductive layer, yarns shows greater rigidity, but can be used to obtain textile materials such as woven fabrics. After performing the measurements, it can be concluded that the yarns coated with a conductive solution based on CB shows electrical conductivity and can be used for obtaining conductive textile fabrics.

scholarly journals Influence and stabilization of environmental conditions on teraohmmeter measurements of textile materials

2020 ◽  
Vol 15 ◽  
pp. 155892502090656
Author(s):  
Thomas Kreisel ◽  
Bernd Froböse ◽  
Andrea Ehrmann
Keyword(s):  
Environmental Conditions ◽  
Textile Industry ◽  
Strong Impact ◽  
Measurement Instruments ◽  
Textile Materials ◽  
Textile Fabrics ◽  
Measurement Results ◽  
Order Of Magnitude ◽  
Measurement Principle ◽  
Conductive Textile

The conductivity of textile fabrics is not only relevant for highly conductive textile materials, which can be prepared by coatings with fine metal layers or conductive polymers, but it is also of large interest in antistatic or other textiles which necessitate relatively low conductivities. These high resistances are usually in a range of gigaohms to teraohms which is not accessible by common multimeters, but necessitates special teraohmmeters. Although these measurement instruments are not unusual in the textile industry, their applications necessitate knowledge of the measurement principle and especially of the influence of environmental conditions on the measurement results. Here, temperature- and humidity-dependent measurements for temperatures of 20°C/23°C/27°C and relative humidities of 50%/65% with a teraohmmeter on different textile fabrics are shown. The results show not only the strong impact of the environmental conditions, resulting in resistance deviations of more than one order of magnitude, but also give hints on how these environmental conditions can be stabilized to a large amount to enable reliable comparison between different textile materials.

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