Endurable water-repellent glass for automobiles

被引:74
作者
Hong, BS [1 ]
Han, JH
Kim, ST
Cho, YJ
Park, MS
Dolukhanyan, T
Sung, C
机构
[1] Samsung Corning Co Ltd, R&D Ctr, Suwon, South Korea
[2] Univ Lowell, Ctr Adv Mat, Dept Chem & Nucl Engn, Lowell, MA 01854 USA
关键词
hydrophobicity; silica sol-gel; spray coating; surface roughness; water repellency; glass;
D O I
10.1016/S0040-6090(98)01794-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Endurable water-repellent coated layers have been formed on safety glasses for automobiles via a sol-gel based spray coating process. Coated films are composed of a silica underlayer ( similar to 800 Angstrom) and a fluorocarbon layer in which the formed silica shows a definite surface roughness and acts as the enhancement factor for chemical and mechanical durability. Durability is a function of the degree of surface roughness, structural fineness and homogeneity. Dual stage aging in silica sol controls a wide range of surface roughness. Water-repellency is degraded gradually by a combination of sunlight (ultraviolet), water, and abrasion. Spray coating on large size and curved safety glasses was successfully carried out. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:274 / 278
页数:5
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