Influence of Acid Etching on Wettability of Ion-exchanged Aluminosilicate Float Glass

Abstract

The influence of acid etching time on wettability of ion-exchanged aluminosilicate float glass was investigated. The contact angle, roughness and surface composition were measured. The results show that the contact angle increases to a maximum value in the first 7 min and then decreases with the corrosion time. The main reason that cause the change of the contact angle is the change of surface roughness and the content of fluorine atom. The contact angle on the tin side is always larger than that on the air side which is caused by the tin ions on the tin side.

Keywords

• aluminosilicate glass
• chemical strengthening
• acid etching
• wettability