Silicone-hybrid technology for modern and resource efficient high solid coatings

摘要

The latest developments in the silicone-hybrid technology for economical, environmentally friendly and innovative high solid coatings will be presented. Several types of silicone-hybrids have been developed based on the targeted chemical combination of inorganic silicone resins with different types of organic resins. Thereby the advantages of the inorganic silicone resins and the organic resins are combined and the excellent properties of the silicone-hybrids can be achieved. Silicone-hybrids have been designed for different curing mechanisms like the much applied isocyanate curing and isocyanate-free crosslinking based on a hydrolysis-condensation reaction. Due to the low viscosity at high solid content of the silicone-hybrids coatings with a VOC content markedly lower than 250 g/L or even lower than 100 g/L can be realized thus complying with new and future VOC legislation. The silicone-hybrid technology can be utilized for industrial topcoat applications to generate effects for functional coatings like outstanding anti-corrosion protection, excellent weather stability, long term durability of the coating, easy-to-clean properties combined with high mechanical and high chemical resistance of the coating. Beside the actual status quo of the silicone-hybrids also the potential next steps in this fascinating and promising technology will be presented.