Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHTFraunhofer ICT develops adhesives for construction based on polyurethane or epoxide. These can be hardened very quickly with microwave radiation, or the joined parts can be separated in a targeted way using activatable substances.
2K adhesives based on PU or EP for construction are developed and characterized. As well as adhesives made of plastics such as PU, PMMA and PC, metal-plastic bonds can also be activated in a targeted way to separate the joined parts. This process can be done largely without applying force and without leaving any residue, so that the components can then be reused. With tensile shear strengths of around 25 MPa, these activatable adhesives are just as powerful as commercially available products.
Characterization methods
- Sample manufacturing and tensile shear strength complies with DIN 53281 and DIN EN 1465
- Material compatibility (DSC/TGA, IR, vacuum stability)
- Dielectric properties by resonance test process
- Debonding properties with different radiation sources
- Extensive microwave array with 16 radiation sources for samples up to 0.5 m²
Services
- Adhesives developed according to customer needs
- Debonding concept
- Adhesive testing