Wet chemical coatings

Starting from liquid precursors that are reacted with each other, it is possible to produce multiple functions in one coating. The obtained materials are so called organic-inorganic hybrid composites. Ending up with a very homogeneously mixed material with exceptional good properties, is one of the biggest advantages of performing the synthesis in liquid phase.

 

The components of the hybrid are inorganic sol-gel networks and/or nanoparticles, in interaction with an organic polymer. The properties of these inorganic-organic hybrids are between those of the original materials or are completely new. The organic polymers allow flexibility and good processability, while the inorganic components add mechanical and thermal stability to the end material. Both phases can also include a number of other interesting functions like hydrophobicity, hydrophilicity, chemical resistance, biocompatibility, optical and electronic properties, etc. By combining all these different functions, hybrid coatings show great potential for various applications.

Equipment

Starting from the wet chemical precursor, the coating can be easily obtained by different deposition techniques, like dip-, spray-, bar-, spin-coating. We use an in-house developed dip-coater, that is configured to handle bigger than labscale substrates (up to a few ten kg). Also spray- and bar-coating equipment is present.

After deposition of the wet coating, a curing step is required, by heating or UV-curing. Sirris is equiped to UV-cure or heat cure the obtained wet coatings.