| 摘要 |
PROBLEM TO BE SOLVED: To improve the abrasion resistance of a silica-based film including organic matter.SOLUTION: A silica-based film includes silica as a main inorganic oxide component and includes, as organic matter, a hardly water-soluble polymer, specifically a polymer having a solubility of 1.0 g or less within 100 g of water at 25°C and including a carbonyl group or alkylene oxide group without including fluorine. This silica-based film exhibits favorable abrasion resistances not only in a Taber abrasion test but also in a steel wool abrasion test. A glass sheet is used as a substrate. |
