Development of graphite-based conductive textile coatings / Patricia Schäl in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 4 (07/2018)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 4 (07/2018) . - p. 875-883 Titre : Development of graphite-based conductive textile coatings Type de document : texte imprimé Auteurs : Patricia Schäl, Auteur ; Irén Juhasz, Auteur ; Nils Grimmelsmann, Auteur ; Andrea Ehrmann, Auteur Année de publication : 2018 Article en page(s) : p. 875-883 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Conducteurs organiques Graphite Polyuréthanes Résistance au lavage Textiles et tissus à usages techniques Index. décimale : 667.9 Revêtements et enduits Résumé : Conductive yarns and coatings are necessary for a broad variety of smart textile applications, such as sensors, data transmission lines, or heated fabrics. The main problems of such conductive textile elements are abrasion and washing resistance. Since different findings with respect to these properties are reported in the literature for similar coatings, the required optimization is impeded. In a recent study, the washing resistance of different graphite–polyurethane coatings with graphite contents between 25% and 33% on cotton, linen, viscose, and polyester woven fabrics was compared, using two different graphite particle sizes on diverse textile substrates. It was found that not only the graphite particle dimensions and graphite concentration strongly influence the longevity of the coatings, but also the textile substrates which were coated with the conductive mass. This means that conductive coatings cannot be optimized without knowledge of the planned application. DOI : 10.1007/s11998-017-0024-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-0024-5.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30864 [article]

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Electrospun multifunctional nanofiber nonwovens for bio-inspired computers / Christoph Döpke in CHEMICAL FIBERS INTERNATIONAL, Vol. 69, N° 1 (03/2019)  

[article]  inCHEMICAL FIBERS INTERNATIONAL > Vol. 69, N° 1 (03/2019) . - p. 46-48 Titre : Electrospun multifunctional nanofiber nonwovens for bio-inspired computers Type de document : texte imprimé Auteurs : Christoph Döpke, Auteur ; Timo Grothe, Auteur ; Michaela Klöcker, Auteur ; Andrea Ehrmann, Auteur ; Tomasz Blachowicz, Auteur ; Pawel Steblinski, Auteur Année de publication : 2019 Article en page(s) : p. 46-48 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Electrofilature Magnétisme Matériaux bio-inspirés Nanofibres Nontissés Index. décimale : 677 Textiles Résumé : Today's computers are based on the so-called von Neumann architecture — processor and memory are separated. For each arithmetic operation, data has to be transported back and forth between these two locations, which costs time and is referred to as the von Neumann bottleneck. In many cases, a bio-inspired architecture would be more efficient that is more like the human brain, where data is processed, stored, and transported within closely spaced small regions and between these areas. In a current project, funded by the Volkswagen Foundation under the funding line "Experiment !", a completely new approach is followed to create hardware for this so-called neuromorphic computing. While other research groups primarily use magnetic tunneling elements and similar modem devices to develop novel bioinspired computer structures, this project is based on a textile technology electrospinning. Note de contenu : - Electrospinning of magnetic nanofiber mats - Magnetization reversal in irregular nanofibers - Bio-inspired processes and neuromorphic computing - Dynamic simulations - Fig. 1 : Needleless, wire-based electrospinning with the "Nanospider Lab" - Fig. 2 : Electro-spun nanofiber mat with nanofibers and "beads" - Fig. 3 : Simulation of a magnetization reversal process. The edge length of the extracted area is 800 nm. The magnetization is shown in red when pointing to the right - Fig. 4 : Generation and movement of domain walls by a bent nanofiber. In the red areas, the magnetization is oriented to the righe, in the green areas perpendicular to this axis En ligne : https://drive.google.com/file/d/19B7GcXUSLXa3VUCamPKttBdaHqRFAepw/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32210 [article]

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Electrospun multifunctional nanofiber nonwovens for bio-inspired computers / Christoph Döpke in CHEMICAL FIBERS INTERNATIONAL, (10/2019)  

[article]  inCHEMICAL FIBERS INTERNATIONAL > (10/2019) . - p. 72-74 Titre : Electrospun multifunctional nanofiber nonwovens for bio-inspired computers Type de document : texte imprimé Auteurs : Christoph Döpke, Auteur ; Timo Grothe, Auteur ; Michaela Klöcker, Auteur ; Andrea Ehrmann, Auteur ; Tomasz Blachowicz, Auteur ; Pawel Steblinski, Auteur Année de publication : 2019 Article en page(s) : p. 72-74 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Electrofilature Magnétisme Matériaux bio-inspirés Nanofibres Nontissés Index. décimale : 677 Textiles Résumé : Today's computers are based on the so-called von Neumann architecture — processor and memory are separated. For each arithmetic operation, data has to be transported back and forth between these two locations, which costs time and is referred to as the von Neumann bottleneck. In many cases, a bio-inspired architecture would be more efficient that is more like the human brain, where data is processed, stored, and transported within closely spaced small regions and between these areas. In a current project, funded by the Volkswagen Foundation under the funding line "Experiment !", a completely new approach is followed to create hardware for this so-called neuromorphic computing. While other research groups primarily use magnetic tunneling elements and similar modem devices to develop novel bioinspired computer structures, this project is based on a textile technology electrospinning. Note de contenu : - Electrospinning of magnetic nanofiber mats - Magnetization reversal in irregular nanofibers - Bio-inspired processes and neuromorphic computing - Dynamic simulations - Fig. 1 : Needleless, wire-based electrospinning with the "Nanospider Lab" - Fig. 2 : Electro-spun nanofiber mat with nanofibers and "beads" - Fig. 3 : Simulation of a magnetization reversal process. The edge length of the extracted area is 800 nm. The magnetization is shown in red when pointing to the right - Fig. 4 : Generation and movement of domain walls by a bent nanofiber. In the red areas, the magnetization is oriented to the righe, in the green areas perpendicular to this axis En ligne : https://drive.google.com/file/d/1yLZ0j1aAqueNV5vM-KeLU68aksmVfuP6/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33096 [article]

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Examination of commercially available fabric glues / Michaela Klöcker in CHEMICAL FIBERS INTERNATIONAL, Vol. 65, N° 5 (12/2015)  

[article]  inCHEMICAL FIBERS INTERNATIONAL > Vol. 65, N° 5 (12/2015) . - p. 272 Titre : Examination of commercially available fabric glues Type de document : texte imprimé Auteurs : Michaela Klöcker, Auteur ; Manel Ellouz, Auteur ; Andrea Ehrmann, Auteur ; Susanne Aumann, Auteur ; Anne Schwarz-Pfeiffer, Auteur Année de publication : 2016 Article en page(s) : p. 272 Langues : Anglais (eng) Catégories : Colles:Adhésifs Coton Le coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles). Essais dynamiques Fibres textiles synthétiques Frottements (mécanique) Martindale, Test de Ce test permet de connaitre la résistance d'un tissu par frottement mécanique. Textiles et tissus -- Collage Textiles et tissus -- Propriétés mécaniques Index. décimale : 677.4 Textiles artificiels Résumé : Fabric glues are often used for small repairs or in order to join 2 textile materials. In the area of smart textiles, they can be used to protect small electronic devices separating from textile substrates, e.g. caused by critical mechanical loading or by washing. This article deals with the role of gluing as a strain relief for the soldering points of SMD components. Different glued connections are investigated using separating force tests as well as Martindale tests. Note de contenu : - Fabric glues - Separating force tests - Martindale tests - TABLES : 1. Fabric glues used for the examinations - 2. Textile substrates materials - FIGURES : 1. Results of the separating force tests of differents textiles, joined with the fabric glues listed in table 1 - 2. Results of the Martindale tests, performed on SMD Led's which were fixed on a cotton canvas using different glues En ligne : https://drive.google.com/file/d/12Po3dGfPOjsQKEEmY4wj7sGTHXFYgpdy/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25162 [article]

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Examination of the damage of optical fibers during weaving / Thomas Berger in CHEMICAL FIBERS INTERNATIONAL, Vol. 65, N° 5 (12/2015)  

[article]  inCHEMICAL FIBERS INTERNATIONAL > Vol. 65, N° 5 (12/2015) . - p. 261-262 Titre : Examination of the damage of optical fibers during weaving Type de document : texte imprimé Auteurs : Thomas Berger, Auteur ; Andrea Rieschel, Auteur ; Andreas Herrmann, Auteur ; Andrea Ehrmann, Auteur Année de publication : 2016 Article en page(s) : p. 261-262 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Détection de dommages (matériaux) Endommagement (mécanique) Fibres optiques Fibres textiles -- Analyse Microscopie Tissage Index. décimale : 677.4 Textiles artificiels Résumé : Optical fibers can be integrated in textile fabrics, e.g. in order to illuminate technical textiles or garments. Such luminous accents can be used as design elements in clothing, but also to enhance traffic safety or in home textiles as emergency lighting. Since optical fibers must not be overbent before they lose their function and finally break, they can most easily be integrated in woven or similar textile fabrics where they keep a relatively even form. The article thus examines the influence of the weaving process on different optical fibers as well as the effect of the resulting damage on the transmission through the optical fiber. Note de contenu : - Weaving process - Microscopic examination - Transmission measurements En ligne : https://drive.google.com/file/d/1d20iI-cvkMhoCrxtEIOcEsPmn7yP5OL7/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25146 [article]

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