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Development of Hydrophilic Outside Mirror Coated With Titania Photocatalyst
Published October 20, 1998 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Autumn Conference
A new outside mirror which enhances rearward visibility on a rainy day has been developed using a TiO2-SiO2 coating on the glass base. Prepared by the sol-gel process, the coating spreads out rain droplets on the mirror surface into a thin film of water by a photocatalytic hydrophilic effect in the TiO2-SiO2. This mirror maintains its good hydrophilicity for a long time, and when hydrophobic contaminations collect on the glass surface, the sun''s radiation induces a photocatalytic effect that serves to decompose the contaminations. Furthermore, the new mirror has sufficiently high durability for use in the severe automotive environment.