PROCESS FOR PRODUCTION OF HYDROPHILIC SILICA FILM, HYDROPHILIC SILICA FILM, AND ACRYLIC RESIN SUBSTRATE HAVING HYDROPHILIC SILICA FILM ATTACHED THERETO

摘要

Disclosed is a silica thin film having excellent hydrophilicity, which can be produced at low cost and at low temperature. Also disclosed is a process for producing a hydrophilic silica film, which comprises: a reaction step (step S100) of mixing at least a tetraalkyl orthosilicate, an organic solvent and water with one another to cause the reaction among these components; a film formation step (step S200) of supplying a solution produced in the reaction step onto a substrate to form a film on the substrate; and a subsequent hydrolysis step (step S400) of bringing the film produced in the film formation step into contact with water to hydrolyze the film.