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ADHESION - ADHESIVES + SEALANTS . Vol. 18, N° 2/2021Material reinforcement : Storage-stable, fiber-reinforced adhesive filmsMention de date : 2021 Paru le : 18/06/2021 |
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Ajouter le résultat dans votre panierStorage-stable, fiber-reinforced adhesive films / Claude Hosotte in ADHESION - ADHESIVES + SEALANTS, Vol. 18, N° 2/2021 (2021)
[article]
Titre : Storage-stable, fiber-reinforced adhesive films Type de document : texte imprimé Auteurs : Claude Hosotte, Auteur ; Raphael Schaller, Auteur Année de publication : 2021 Article en page(s) : p. 12-16 Note générale : Bibliogr. Langues : Multilingue (mul) Catégories : Adhésifs -- Stockage
Copolymère éthylène acide acrylique
Essais de pelage
Fibre aramide
Fibres à orientation unidirectionnelle
Films adhésifs
Films adhésifs -- Propriétés mécaniques
Polyuréthanes
Stabilité au stockage
StratifiésIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : The desire for lightweight yet strong composite materials is echoed by various industries confronted with new, often extreme, requirements. With this in mind, Nolax has developed fiber-reinforced adhesive films that combine toughness and high tensile strength combined with low weight and outstanding flexibility. Note de contenu : - From fabric to yarn and filament
- The Nolax matrix : solvent-free and storage-stable
- Crosslinking on demand
- Customized properties
- Thermal and alternating climate resistance
- Storage-stable for over 12 months
- Fig. 1 : A membrane sail in action
- Fig. 2 : Fiber-reinforced adhesive films from Nolax. Unidirectionally arranged filaments are embedded in an adhesive and can be processed at elevated temperature and pressure, for example, into membrane sails
- Fig. 3 : Stress-strain diagram of a filament, yarn and fabric made of aramid. The zigzag path of yarns in a fabric significantly reduces their performance compared to a single filament
- Fig. 4 : Continuous multi-filament yarns are unwound, spread and impregnated. This process produces fiber-reinforced adhesive films with typical weights of <100 g.m-2.
- Fig. 5 : Calculated off-axis Young's moduli of the fiber-reinforced adhesive film T52.5110 and their laminates - unidirectional : one layer of fiber-reinforced adhesive film, cross-ply laminate : two layers in fiber directions (0°/90°), quasi-isotropic laminate : four layers with fiber directions (0°/45°/90°/135°), (a) measurements of Young's modulus at 0°, 45° and 90° to the fiber orientation in T52.5110. The Tsai-Hill criterion [5] was used to calculate the off-axis Young's moduli
- Fig. 6 : Tensile force k1% value (the force at 1% elongation) versus number of plies of (a) Nolax T51.5000 with 15 g.m-2, in comparison with a (a) standard polyester fabric 450 g.m-2, single layer
- Fig. 7 : T-Peel force at 20°C and 80°C of laminates with two layers of fiber-reinforced films
- Fig. 8 : Plotting the T-peel force of laminates against the storage time of the fiber¬reinforced adhesive films. The unidirectional laminates consist of 10 layers of T51.5000 (weight 15 g.m-2) dried at (a) 50 °C or (1:1) 60 °C - with a line speed of 8 m.min-' and a drying section of approx. 25 m
- Table 1 : Overview of the mechanical properties (in fiber direction), density and application temperature of three different fiber-reinforced adhesive films
- Table 2 : SAFT values before and after the climate change test Nolax (LRPU : latent-reactive polyurethane / EAA: ethylene-acrylic acid copolymer)En ligne : https://drive.google.com/file/d/1KlOKDigHhWBmKEKGedtG0pCyUK4M7914/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35693
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Code-barres Cote Support Localisation Section Disponibilité 22711 - Périodique Bibliothèque principale Documentaires Disponible 22769 - Périodique Bibliothèque principale Documentaires Disponible Fatigue strength of hybrid joined multi-material structures in ADHESION - ADHESIVES + SEALANTS, Vol. 18, N° 2/2021 (2021)
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Titre : Fatigue strength of hybrid joined multi-material structures Type de document : texte imprimé Année de publication : 2021 Article en page(s) : p. 17-18 Langues : Multilingue (mul) Catégories : Adhésifs dans les automobiles
Assemblages multimatériaux
Contraintes (mécanique)
Matériaux -- Allègement
Résistance à la fatigue (matériaux)Index. décimale : 668.3 Adhésifs et produits semblables Résumé : Increasingly stringent statutory emission limits are pushing the automotive industry toward innovative lightweight design solutions. In this context, the fatigue strength of thin sheet metal structures, especially made from multi-material, is becoming increasingly important. Note de contenu : - Fatigue properties investigated as close as possible to practical conditions
- Hybrid manufacturing process has to be optimized
- Fig. 1 : CAD and CAE model of a component-like bowl specimen
- Fig. 2 : Exemplary representation of a stiffness curve in correlation to thermoelastic stress analysisEn ligne : https://drive.google.com/file/d/1ThuEUZbqiHKy0Wh-U31UvwjVcSnBAece/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35694
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Code-barres Cote Support Localisation Section Disponibilité 22711 - Périodique Bibliothèque principale Documentaires Disponible 22769 - Périodique Bibliothèque principale Documentaires Disponible Process-oriented rheology of packaging adhesives / Christoph Winkler in ADHESION - ADHESIVES + SEALANTS, Vol. 18, N° 2/2021 (2021)
[article]
Titre : Process-oriented rheology of packaging adhesives Type de document : texte imprimé Auteurs : Christoph Winkler, Auteur ; José Alberto Rodriguez Agudo, Auteur ; Ulrich Shwarz ; Michael Schäffler Année de publication : 2021 Article en page(s) : p. 19-24 Note générale : Bibliogr. Langues : Multilingue (mul) Catégories : Adhésifs -- Emballages
Essais (technologie)
Qualité -- Contrôle
RhéologieIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Rheological methods are widely used in the quality control of adhesives. In order to better reproduce the real process, however, interactions between adhesive and substrate must be considered. By selecting a suitable setups as well as multi-task tests, an optimized evaluation of adhesives is possible. Note de contenu : - Adjusting the measuring geometries
- Considering potential interactions
- Multi-task test
- Time-sweep
- Frequency sweep
- Task testEn ligne : https://drive.google.com/file/d/1rCf1PTFMYuyFsyf7aMLwF_zREARQMTD2/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35695
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Code-barres Cote Support Localisation Section Disponibilité 22711 - Périodique Bibliothèque principale Documentaires Disponible 22769 - Périodique Bibliothèque principale Documentaires Disponible Use of refillable cartridge systems for 1C and 2C applications in ADHESION - ADHESIVES + SEALANTS, Vol. 18, N° 2/2021 (2021)
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Titre : Use of refillable cartridge systems for 1C and 2C applications Type de document : texte imprimé Année de publication : 2021 Article en page(s) : p. 25-28 Langues : Multilingue (mul) Catégories : Adhésifs -- Application-dosage
Cartouches (emballages)Index. décimale : 668.3 Adhésifs et produits semblables Résumé : In the production of individual parts and small quantities or in flexible manufacturing processes, the application of 1-component (1C) and 2-component (2C) adhesives continues to be carried out using a cartridge - for economic reasons, among others. But is this still in keeping with the times ? And how can the associated ecological disadvantage be compensated ? Note de contenu : - Technology for the use of refillable cartridges
- 1C systems
- 2C systems or 1C PU + boosterEn ligne : https://drive.google.com/file/d/1J1dyleBsMjWRhoWiEQqY4j0uwzOpPKdb/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35696
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Code-barres Cote Support Localisation Section Disponibilité 22711 - Périodique Bibliothèque principale Documentaires Disponible 22769 - Périodique Bibliothèque principale Documentaires Disponible Development of a thermoset composites in ADHESION - ADHESIVES + SEALANTS, Vol. 18, N° 2/2021 (2021)
[article]
Titre : Development of a thermoset composites Type de document : texte imprimé Année de publication : 2021 Article en page(s) : p. 29-31 Langues : Multilingue (mul) Catégories : Composés de moulage en feuille
Composites à fibres de verre
Formulation (Génie chimique)
Gaz à effet de serre -- Réduction
ThermodurcissablesIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : The ecological footprint of plastics and their energy-intensive production has long been
subject of public criticism. With this in mind Lorenz Kunststofftechnik and the Leibniz-Institut für Verbundwerkstoffe (IVW) worked to find ways to make a thermoset composite with a lower CO, footprint as part of a research project.Note de contenu : - Analysis of the required parameters
- Characterization and manufacture of a partially organic semi-finished product
- Use in industrial-scale
- Fig. 1 : SMC production line : In collaboration with the Leibniz-Institut für Verbundwerkstoffe (IVW), Lorenz Kunststofftechnik researched ways to make a thermoset composite with a lower CO2 footprint
- Fig. 2 : Truck panel : The lower density achieved with the new organic SMC opens up new opportunities for it in the automotive industry
- Fig. 3 : Demonstrator rear spoiler: The partially organic-based semi-finished product shows very good flow properties. Filling of complex ribbed structures is possible with conventional processing parameters. There is no de-mixing of fiber and matrix
- Fig. 4 : Composition of the GF-SMC formulation: After iterative test series for different resin systems, suitable formulations were developed that show the desired viscosity, flow, and impregnation behavior for the respective application.En ligne : https://drive.google.com/file/d/1EssNHsidYozvxjzodOkQCk59EzfhZ-Vw/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35697
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