CLICK-TEX: thermostable and non hydrolysable
Transcription
CLICK-TEX: thermostable and non hydrolysable
Materials, Cosmetics, Textiles Licensing CLICK-TEX: thermostable and non hydrolysable functionalization of technical textiles through nanoparticles Technical textiles with specific functions are usually obtained by adsorption of microcapsules. The laboratory has developed a new method based on the «click chemistry» to graft sustainably hybrid multifunctional nanoparticles on textile fibres. Detailed description Different nanoparticles grafted at the same time and regularly distributed Advantages / Novelty Sustainable functionalization of cellulosic fibres is made by thermostable and non hydrolysable covalent binding. The «click chemistry» reaction, developed by the laboratory, leads to irreversible formation of triazole cycle in organic or aqueous medium with quantitative yields. Complex chemical structures such as polymeric nanoparticles can be grafted. Obtained technical textiles are more resistant to washes and keep their function when worn. Multifunctionalization will allow online quality control of production by simple validation of fluorescence level. Current stage of development - multi functionalization in one step - Sustainable grafting of functionalized nanoparticles encapsulating metal and oxides, fluorophores or other products. - Thermostable (over 300°C) and non hydrolysable covalent binding. - Possibility of multifunctionalization in one step. - «Click chemistry»: process without loss of particles (high yield) in any reaction medium, non toxic and without heating. Applications - Study of best grafting conditions of silica based nanoparticles on cellulosic fibres in hydroalcoholic medium. - Study of bacteriostatic properties of modified cellulosic fibres through quantitative method ISO 22196:2007. Intellectual property Cosmetic and dermato textiles: - UV protection function: grafting of TiO2 polysiloxan coated nanoparticles on textile fibres - Well-being function linked to bacteriostatic properties and optical filters: grafting of nanoplatforms encapsulating antibacterial drugs and/or optical filters (Ag, Au, TiO2, ZnO…) on underwear, socks, towels, wash gloves, etc. Research team Patent pending in FR Priority date: May 18, 2010 (FR1053849) Collaboration type Thierry Hamaide Ingénierie des Matériaux Polymères. Laboratoire des Matériaux Polymères et Biopolymères (IMP@ UCBL), UMR 5223, UCBL-CNRS-INSA-UJM Olivier Tillement Laboratoire de physico chimie des matériaux électroluminescents (LPCML), UMR 5650, UCBLCNRS Lyon Science Transfert looks for industrial partners and offers to grant patent license. www.universite-lyon.fr/lst CONTACT Nelly Gimenez Tel. +33 (0) 4 37 37 42 98 [email protected] Lyon Science Transfert - Université de Lyon, Quartier Sergent Blandan 37, rue du repos 69361 Lyon cedex 07 FRANCE