Hygienic assessment of polymeric coatings by physico-chemical and microbiological approaches

Autor: Laurence Boulangé-Petermann, E. Robine, S. Ritoux, B. Cromières
Rok vydání: 2004
Předmět:
Zdroj: Journal of Adhesion Science and Technology. 18:213-225
ISSN: 1568-5616
0169-4243
DOI: 10.1163/156856104772759421
Popis: Various coatings currently used in wall panels for building applications were assessed. The hygienic properties of coatings were investigated by the ease of cleaning as well as in terms of their anti-fouling property. The surface energy of the coatings was calculated using the acid- base approach (according to van Oss, Chaudhury and Good). In our work, the results are found to be relatively consistent and we discriminated apolar, monopolar basic, or coatings with acid-base character. As far as the fouling aspect is concerned, the bacterial survival, expressed as percentage, is governed by environmental factors such as relative humidity and the presence of nutrients on coatings. In our experimental conditions, the surface properties of the coatings have been found to play a secondary role. On clean coatings, the percentage of survival increases with a decrease of the relative humidity. After 24 h of exposure to a wet environment, the survival is around 11-15% on poly(ethylene terephthalate) (PET) and poly(...
Databáze: OpenAIRE