Silica sol, composition containing the same, method for treating said silica soland uses thereof

摘要

The invention relates to a novel silica sol, to a composition containing said silica sol, to a method for treating the silica sol and to various uses thereof. The silica sol is surface-treated by grafting and/or by adsorption of at least one organic molecule and/or by doping with at least one doping agent, said sol comprising silica nanoparticles whose average size is between 3 and 50 nm. Said particles are monodispersed in a liquid phase and are present in a concentration greater than or equal to 5 % and preferably greater than or equal to 10 %.