ゾル-ゲル法で作製した凹凸形状を有するSiO_2薄膜の膜硬度に及ぼすTiO_2添加効果と自動車用はっ水ガラスへの応用

概要

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Silica-titania films with a concave-convex surface were prepared from a mixture of polymerized tetraethoxysilane (TEOS) sol containing tetraisopropoxytitanate and polymerized methyltriethoxysilane (MTES) sol in a molar ratio MTES/TEOS of 6. Film hardness was dependent on the composition of the coating sol, heat treatment temperature and time. The film obtained by introduction of 4 mol% TiO_2 to SiO_2 and by heat treatment at 620℃ for 10 min was hard to be usable in engineering practice. New-type water-repellent glasses were produced by using these SiO_2-TiO_2 films as an under layer combined with fluoroalkylsilane; the glasses showed an abrasion resistance for practical application as automotive windows.
社団法人日本セラミックス協会の論文
2000-04-01