| Titre : |
Improved protective clothing for welders with nanoparticles |
| Type de document : |
texte imprimé |
| Auteurs : |
Léonie Kamps, Auteur ; Jochen S. Gutmann, Auteur ; Thomas Mayer-Gall, Auteur ; Torsten Textor, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 218-219 |
| Langues : |
Multilingue (mul) |
| Catégories : |
Confort
Equipement de protection individuelle
Essais (technologie)
IgnifugeantsComposé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface.
Liants
Nanoparticules
Nanostructures
Projection de matériaux
Protection contre le rayonnement ultraviolet
Protection thermique
Vêtements de protection
Vêtements de travail
|
| Index. décimale : |
677 Textiles |
| Résumé : |
Protective welding clothing must meet various requirements. Among other things, it must be flame-resistant, protect the welder against splashes of metal or sparks and also ensure protection against radiant heat and UV light caused by the exposure to the welding arc. The protection against molten metal splashes is directly related to the fabricweight per unit area of the protective welding clothing and the level of protection is normally determined by the numbers of molten metal droplets that fall on the fabric. The higher the weight per unit area, the greater the protection against welding spalter. However, increasing the fabric weight per unit area also leads to psychologically uncomfortable wearing and thus increasing the physical strain on the wearer. The required basis weight per unit area of protective welding clothing can be reduced by applying nanoparticles as a protective layer while preserving other indispensable properties. |
| Note de contenu : |
- Fig. 1 : Nanostructured created on cotton and modarcyl fabrics using different binders and nanoparticles at different concentration of binder and different nanoparticle contents in the finishing solution
- Fig. 2 : Schematic representation of a drop of molten iron on fabrics with (right) and without nanostructured surface (left). In the case with nanostructured surface, it is clear that the contact area between the drop of iron (Fe) and the fabric is reduced, and that a thermally insulating air layer is created underneath (free area between the grey particles). In the case of fabrics without coating, the iron directly contacts the fiber and can thus transfer more heat while causing more damage to the material
- Fig. 3 : Results of different nanoparticle finishes in the metal droplet test. The red line indicates the requirement of 25 drops to pass welding protection Class 2 according to DIN EN ISO 11611
- Table : Summary of the results of the wearer comfort and metal drop test |
| En ligne : |
https://drive.google.com/file/d/1RRulExGXWofUQq789e8HUOIbwZsMPtYy/view?usp=share [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38556 |
in TECHNICAL TEXTILES > Vol. 65, N° 4 (10/2022) . - p. 218-219
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Improved protective clothing for welders with nanoparticles in TECHNICAL TEXTILES, Vol. 65, N° 4 (10/2022)
