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Modern methods in fiber analysis for advanced quality control and process development / Wilhelm Steinmann in CHEMICAL FIBERS INTERNATIONAL, Vol. 62, N° 2 (05/2012)
[article]
Titre : Modern methods in fiber analysis for advanced quality control and process development Type de document : texte imprimé Auteurs : Wilhelm Steinmann, Auteur ; Benjamin Gauß, Auteur ; Stephan Walter, Auteur ; Johannes Wulfhorst, Auteur ; Gunnar Seide, Auteur ; Thomas Gries, Auteur Année de publication : 2012 Article en page(s) : p. 95-97 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse thermique
Calorimétrie
Diffraction des rayons X Ã grand angle
Fibres textiles synthétiques -- Analyse
Microscopie électronique en transmissionIndex. décimale : 677 Textiles Résumé : Modern methods for analyzing man-made fibers will be presented, focusing on the most recent and sophisticated techniques of fiber analysis. Beside gathering new information about fundamental principles of structure formation in polymeric fibers, the analysis techniques (wide-angle x-ray diffraction (WAXD), differential scanning calorimetry (DSC) and transmission electron microscopy (TEM)) are also of great value for practical applications. For the industry, these methods support the process development for new man-made fiber materials and can also be used for quality control after production. Note de contenu : - Wide-angle X-ray diffraction
- Differential scanning calorimetry - Transmission electron microscopyEn ligne : https://drive.google.com/file/d/14tRqQrsv0oO1OqbD9O_TTEbHSxJ3RoqV/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15860
in CHEMICAL FIBERS INTERNATIONAL > Vol. 62, N° 2 (05/2012) . - p. 95-97[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13959 - Périodique Bibliothèque principale Documentaires Disponible Production and functionalizing of bicomponent fibers based on PVDF / Benjamin Glauß in CHEMICAL FIBERS INTERNATIONAL, Vol. 64, N° 4 (12/2014)
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Titre : Production and functionalizing of bicomponent fibers based on PVDF Type de document : texte imprimé Auteurs : Benjamin Glauß, Auteur ; Isa Bettermann, Auteur ; Wilhelm Steinmann, Auteur ; Stephan Walter, Auteur ; Gunnar Seide, Auteur ; Thomas Gries, Auteur ; Georg Roth, Auteur Année de publication : 2015 Article en page(s) : p. 198-200 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Conducteurs organiques
Extrusion filage
Fibres textiles bi-composant
Fibres textiles synthétiques
Matériaux piézoélectriques
Polyfluorure de vinylidène
Polypropylène
RhéologieIndex. décimale : 677.4 Textiles artificiels Résumé : This research explains the melt spinning of bicomponent fibers which consist of a conductive polypropylene (PP) core and a sheath with piezoelee tric characteristics (polyvinylidene fluoride). Previously analyzed piezoelectric capabilities of polyvinylidene fluoride (PVDF) are to be exploited in sensor filaments. The fiber core is conductive due to a percolation CNT network in polypropylene. The sheath's piezoelectric effect is based on the formation of an all-trans conformation 13 phase, caused by draw-winding of the fibers. The core and sheath structure are characterized through wide-angle X-ray diffraction (WAXD). The distribution of CNTs in the polymer matrix, which affects the conductivity of the core, was investigated by transmission electron microscopy (TEM). Optical microscopy is used to determine the fibers' diameter regularity (core and sheath). The materials' viscosity is determined by rheometry. Eventually, an LCR tester is used to determine the core's specific resistance. Note de contenu : - AIM OF STUDY
- POLYVINYLIDENE FLUORIDE
- CONDUCTIVE NANOCOMPOSITES IN POLYMERS
- MELT SPINNING AND BICOMPONENT FIBER EXTRUSION
- MATERIALS AND METHODS : Material - Fiber production - Characterization
- RESULTS AND DISCUSSION : Wide-angle X-ray diffraction (WAXD) - Bright field microscopy - Specific resistivityEn ligne : https://drive.google.com/file/d/1FTgCMRkZHa5yrkfpv2bx-wkuO5m9UhCZ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22550
in CHEMICAL FIBERS INTERNATIONAL > Vol. 64, N° 4 (12/2014) . - p. 198-200[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16709 - Périodique Bibliothèque principale Documentaires Disponible Production and functionalizing of bicomponent fibers based on PVDF / Benjamin Glauß in CHEMICAL FIBERS INTERNATIONAL, (09/2015)
[article]
Titre : Production and functionalizing of bicomponent fibers based on PVDF Type de document : texte imprimé Auteurs : Benjamin Glauß, Auteur ; Isa Bettermann, Auteur ; Wilhelm Steinmann, Auteur ; Stephan Walter, Auteur ; Gunnar Seide, Auteur ; Thomas Gries, Auteur Année de publication : 2015 Article en page(s) : p. 70-72 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Extrusion filage
Fibres textiles bi-composant
Fibres textiles synthétiques
Matériaux hybrides
Matériaux piézoélectriques
Polyfluorure de vinylidène
PolypropylèneIndex. décimale : 668.9 Polymères Résumé : This research explains the melt spinning of bicomponent fibers which consist of a conductive polypropylene (PP) core and a sheath with piezoelectric characteristics (polyvinylidene fluoride). Previously analyzed piezoelectric capabilities of polyvinylidene fluoride (PVDF) are to be exploited in sensor filaments. The fiber core is conductive due to a percolation CNT network in polypropylene. The sheath's piezoelectric effect is based on the formation of an all-trans conformation ? phase, caused by draw-winding of the fibers. The core and sheath structure are characterized through wide-angle X-ray diffraction (WAXD). The distribution of CNTs in the polymer matrix, which affects the conductivity of the core, was investigated by transmission electron microscopy (TEM). Optical microscopy is used to determine the fibers' diameter regularity (core and sheath). The materials' viscosity is determined by rheometry. Eventually, an LCR tester is used to determine the core's specific resistance. Note de contenu : - AIM OF STUDY
- POLYVINYLIDENE FLUORIDE
- CONDUCTIVE NANOCOMPOSITES IN POLYMERS
- MELT SPINNING AND BICOMPONENT FIBER EXTRUSION
- MATERIALS AND METHODS : Material - Fiber production - Characterization
- RESULTS AND DISCUSSION : Wide-angle X-ray diffraction (WAXD) - Bright field microscopy - Specific resistivityEn ligne : https://drive.google.com/file/d/1RE1muavJLBwQ-nx3TuLeocA5hac1Mguj/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24725
in CHEMICAL FIBERS INTERNATIONAL > (09/2015) . - p. 70-72[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17440 - Périodique Bibliothèque principale Documentaires Disponible