Titania sol chelated with an organic complex, a method thereof, and a composition including said titania sol for forming medium, high, super-high refractive index coating layer

摘要

The invention relates to a titanium dioxide-organic complex collosol, a preparing method thereof and a combination comprising the collosol is used for forming moderate, high and ultrahigh refractive index coating layers. The preparing method comprises following steps: through adding organic complex in titanium dioxide collosol generated by a collosol-gel reaction, preparing titanium dioxide-organic complex; drying the product; redispersing the product in a spreading solvent. The titanium dioxide-organic complex collosol has monodispersity, excellent compatibility with the organic solvent and storage stability. Specially, titanium dioxide nanometer particles are dispersed with high high concentration and redispersed in the organic solvent to keep transparent, so the titanium dioxide-organic complex collosol can be used for forming paint combination with moderate, high and ultrahigh refractive index coating layers.