Molecular release from painted surfaces: Free and encapsulated biocides
Artikel i vetenskaplig tidskrift, 2010

The current standard way of using biocide in coatings for protection against micro-organic surface growth, so called biofouling, is insufficient as the biocide leaks out from the coating too fast. In this article, we investigate a method for prolongation of the coating protection by slowing down the release rate of biocides in a controlled way. The biocide is placed into micrometer-sized reservoirs, called microspheres, from where it is slowly distributed into the coating. By different microscopic techniques the microspheres were found to be compatible (i.e. no phase separation was observed) both with the coating material and the paint. Biocide release from the coating is recorded by liquid scintillation counting and it was clear that the release is considerably slower from coatings with microspheres compared to an ordinary formulation with freely dispersed biocides. Microspheres might thus be a beneficial tool for the development of coatings with a longer protection against biofouling. (C) 2010 Elsevier B.V. All rights reserved.

Controlled release

Paint

Microspheres

adsorption

Microcapsules

coatings

Författare

Lars Nordstierna

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Attaalla A M Abdalla

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Mariam Masuda

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Gunnar Skarnemark

Chalmers, Kemi- och bioteknik, Kärnkemi

Magnus Nydén

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

SuMo Biomaterials

Progress in Organic Coatings

0300-9440 (ISSN)

Vol. 69 1 45-48

Ämneskategorier

Kemi

DOI

10.1016/j.porgcoat.2010.05.002