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Bioresistancy of building and finishing materials usually requires addition of dedicated bioactive chemicals, so-called biocides. Traditionally, the action of biocides in materials is based on a passive and uncontrolled release principle, which causes an initial boost in biocide activity and a steep decrease when time proceeds. The inherent disadvantage is the emission of a relatively large amount of biocide molecules and the quick decline of effectiveness, leading to early replacement which is expensive and has an high environmental impact.

The increase in biocide concentration only results in a minor prolongation of the material service-life. For example, coatings usually exhibit biocidal functionality between 0.5 and 2 years – depending on environmental loads –, whereas the desired service life in building practice is at least 10 years.

In this project we will therefore focus on extending the service-life of bio-active agents in finishing materials by the introduction of a ‘smart’ concept of bio-inhibitor release. This smart release mechanism will consists of an induced response on external stimuli. Our aim is to increase the activity of the bio-inhibitors with at least a factor of 5. Within this project we will focus on applying the concepts in several materials for construction such as paints and plasters for indoor use. The applied technologies will be selected based on their market impact and broad applications in other products for the construction sector.

Facts and figures


  • 15 partners involved out of 6 European countries 
  • 4 years project: January 2010 - December 2013
  • European Commission is funding 3,1 million euro

Goals


  • Develop innovative building material
  • Provide cost-effective solutions for the building and construction sector
  • Reduce environmental impact and health related problems

 

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This project has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no 228504

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