Objective
- development of indoor and outdoor paints on the basis of a sol-gel derived SiO2
matrix curable at room temperature for a control of heat flow in buildings
Methods
- use of a nanobinder developed already as a matrix prepared by wet chemistry on the basis
of commercially available nano-scaled silica modified in its surface
- incorporation of infrared selective pigments such as mica or metal flakes
- addition of per-fluorinated silanes in order to adjust easy-to-clean (ETC) properties
Results
- infrared selective pigments can be incorporated in a broad variety without effecting
their colour and spectral properties
- free choice of application technique
(spraying, dipping, rolling)
- ETC surfaces available
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Applications
- paints for façades
- indoor paints for walls, doors etc.
Benefits
- no dissolution of pigment particles like mica or metal flakes such like in case of using
water glass based binders
- spectral properties of the inorganic matrix provides the possibility for a control of
the heat flow in buildings contrary to polymer based binders absorbing in the
corresponding spectral range
R & D potential
- investigation of the weathering stability
- investigation of heat control in practice
- tayloring of materials properties to individual demands
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Laboratory Technology
