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Theses

Fonctionnalisation anti-bactérienne passive ou active de tissus textiles par voie sol-gel ou photochimique - L'association du TiO2 et de la chimie douce

Abstract : In this thesis, several approaches have been tested for the passive ("bacteriostatic") and active (as definedby an ISO standard, "bactericidal") anti-bacterial fonctionalization of textile fabrics by using hydrophobicspecies and nanoparticles of metallic silver or quaternary ammonium species, respectively. Liquidsolutions were prepared by sol-gel and photochemistry methods, in association or not. Physicochemical,morphological and structural characterizations have first been realized to optimize the solutionformulations and the characteristics of active species in solutions towards various industrialspecifications. This optimization study has in particular led to stable solutions allowing their use inreproducible conditions over time. The optimized solutions were then imparted to textile samples, using asimplified "pad-coating device implemented during the thesis, in order to test the anti-bacterial functionof treated textiles. Depending on the nature of the species present on textiles, the optimized solutions ledto a passive or active anti-bacterial function while keeping the visual aspect and hand feeling of textiles.Laboratory washing tests or laundering washings in real conditions also showed a significant attachmentof impregnated species on textiles. Different options have finally been proposed to enhance thisattachment in order to fulfill industrial washing criteria. In conclusion, this thesis work highlights thepotential of soft chemistry approaches to functionalize textiles supports and enable us to propose originaland simplified methodologies in adequacy with industrial requirements.
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Submitted on : Friday, April 8, 2011 - 1:14:06 PM
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Mouna Messaoud. Fonctionnalisation anti-bactérienne passive ou active de tissus textiles par voie sol-gel ou photochimique - L'association du TiO2 et de la chimie douce. Autre. Université de Grenoble, 2011. Français. ⟨NNT : 2011GRENI009⟩. ⟨tel-00584376⟩

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