Hybrid Anti-Bacterial Coating

SCHEME: CORE

CALL: 2013

DOMAIN: MS - New Functional and Intelligent Materials and Surfaces

FIRST NAME: David

LAST NAME: Ruch

INDUSTRY PARTNERSHIP / PPP: No

INDUSTRY / PPP PARTNER:

HOST INSTITUTION: LIST

KEYWORDS: Anti-bacterial coating, atmospheric plasma, nanocomposite material, silver, superhydrophobicity, laser, dielectric barrier discharge

START: 2014-04-01

END: 2017-03-31

WEBSITE: https://www.list.lu/

Submitted Abstract

Nanoparticles incorporation into a polymer can impart enhanced properties to the final composite because of their very high specific surface. Therefore, nanocomposite coatings can provide surfaces with improved resistance or active properties. In particular, incorporation of suitable metal or oxide particles into a polymer matrix is known to provide an additional anti-bacterial effect to this composite material.The present project deals with the elaboration of organic/inorganic hybrid coatings achieved by plasma polymerization from liquid precursors at atmospheric pressure. First step relies on a laser assisted process to perform in-situ elaboration of nanoparticles into a polymerisable monomer and therefore to obtain a suspension. Coating deposition from this suspension is carried out in a second step by an atmospheric plasma process. This two step process is harmless since no handling of nanopowder is necessary. Furthermore, better dispersion of particles into the liquid monomer is expected from this particular laser process. Therefore improved dispersion of nanoparticles into the final nanocomposite coating shall be obtained.Target coating is a superhydrophobic plasma polymer from perfluorodecylacrylate with silver particles incorporation. Influence of suspension characteristics and deposition process parameters on composite coating structure and dispersion will be particularly investigated. Links with composite coating anti-bacterial properties will also be studied.

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