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The main objective of the project is to develop, adapt and apply smart release concepts of eco-acceptable biocides to extend service life of finishing materials substantially.

The smart release concepts will be based on induced or triggered release, giving bio-inhibition only when needed. This approach is new for materials in the construction sector, and requires considerable research effort to make the technologies applicable for finishing materials in this sector.

The figures below show the three release principles:

 

The left figure shows the uncontrolled release process which is the current situations for coatings and plasters in which biocides are added. The slow release mechanism is shown in the middle; in that case a retarding step is used to release the biocides. However, the ultimate situation is the situation in which release is initiated in case of trigger.

In our case the responsive material will be able to react to variations in moisture level and presence of micro-organisms. We will focus on biocide release in response of secretion of enzymes by the micro-organisms (ultimate solution).
 

Background Info


  • Ten percent of homeowners believe that mould is an issue in their neighbourhoods while 35 percent of home builders and 19 percent of real estate agents believe that this is an issue in the homes they build/sell.
  • A total of 11% of the entire global burden of disease has been attributed to unhealthy buildings.
  • Coatings in the built environment usually exhibit biocidal functionality between 0.5 and 2 years, whereas the desired service life in building practice is at least 10 years.

 

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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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