METHOD FOR PRODUCING SILICON DIOXIDE COATINGS ON SILICATE GLASS WITH A REDUCED CURING TEMPERATURE OF 60-100 ° C, HAVING A HIGHER HARDNESS BY PENCIL 7Н-9Н

摘要

The method of obtaining thin 80-200 nm single-layer transparent coatings of silicon dioxide on products of silicate glass, cured at a low temperature of 60-100 ° C for 0.5-1.0 hours and having increased pencil hardness 7H - 9H, including sol-gel the process of silicon tetraalkoxide in the presence of additives of products of hydrolysis of metal alkoxides, deposition of a silica coating from a silica sol on a silicate glass, heating a coated sample in an atmosphere of air to cure the coating, characterized in that as metal alkoxides use alkoxides of aluminum, titanium and zirconium, and the products of the hydrolysis of metal alkoxides are introduced into a silica sol in an optimal concentration of 0.1-0.5 mol% to silicon dioxide.