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2017-09-04 - Colloque/Présentation - poster - Anglais - 1 page(s)

Druart M.E., Recloux Isaline, Billet S., Derouaux Adeline, Van de Weerdt Cécile, Olivier Marie-Georges , "Development of mesoporous sol-gel film for anti-fingerprint applications on glass" in 19th international sol-gel conference, Liège, Belgique, 2017

  • Codes CREF : Corrosion des matériaux (DI2114)
  • Unités de recherche UMONS : Science des Matériaux (F502)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
  • Centres UMONS : Ingénierie des matériaux (CRIM)
Texte intégral :

Abstract(s) :

(Anglais) Mesoporous sol-gel film can be used as smart coatings due their capability to embed active species in applications such as drug delivery, catalysis, sensors, active corrosion protection layer, … These materials were synthesized by specific sol-gel route including the use of surfactant molecules acting as templating agent through the evaporation induced self-assembly (EISA) process. Controlled mesoporosity of the film is obtained by the thermal removal of the templating agent. After this treatment, the mesopores can be employed to host active molecules. In this work, the mesostructure of the sol-gel layer is used as reservoir for active enzymatic molecules providing anti-fingerprint coating. The mesopore size and their configuration were designed to assure a good impregnation by lipases. The coatings were applied on glass. The influence of the deposition process and the composition of the sol-gel on the structure of the mesoporous film were characterized. The morphologies of films were characterized by scanning electron microscopy (SEM) and water adsorption/desorption isotherms recorded with a quartz crystal microbalance (QCM). The stability of the sol-gel solution was checked by rheological measurements. The efficiency of the combination of mesoporous film and the enzymatic solution was evaluated in terms of anti-fingerprint properties using an artificial sebum.