Coating Liquid Used For Forming Ultraviolet Absorption Coating And Ultraviolet Absorption Glass

Abstract

Provided is an ultraviolet absorption glass comprising: a glass substrate, and an ultraviolet absorption coating arranged on at least one surface of the glass substrate, wherein the ultraviolet absorption coating comprises silicon dioxide, an ultraviolet absorber, and MOz used for storing and releasing electrons excited by ultraviolet light in the ultraviolet absorber. The ultraviolet absorption glass is low cost and has good resistance to discoloration and devitrification.

What is claimed is: 
     
         1 . An ultraviolet absorption glass comprising:
 a glass substrate, and   an ultraviolet absorption coating arranged on at least one surface of the glass substrate,   wherein the ultraviolet absorption coating comprises silicon dioxide, an ultraviolet absorber, and MOz used for storing and releasing electrons excited by ultraviolet light in the ultraviolet absorber, and   wherein MOz is at least one compound selected from the group consisting of VO 5/2 , MnO 2 , FeO 3/2 , CoO 4/3 , NiO, YO 3/2 , ZrO 2 , NbO 5/2 , MoO 3 , RuO 2 , RhO 3/2 , PdO, TaO 5/2 , WO 3 , ReO 3 , OsO 4 , IrO 2 , GaO 3/2 , InO 3/2 , SnO 2 , SbO 5/2  and BiO 5/2 .   
     
     
         2 . The ultraviolet absorption glass according to  claim 1 , wherein in the ultraviolet absorption coating, a molar ratio of MOz to silicon dioxide is in a range of 1/300-1/100. 
     
     
         3 . The ultraviolet absorption glass according to  claim 2 , wherein in the ultraviolet absorption coating, a molar ratio of MOz to silicon dioxide is in a range of 1/180-1/120. 
     
     
         4 . The ultraviolet absorption glass according to  claim 1 , wherein in the ultraviolet absorption coating, a molar ratio of MOz to ultraviolet absorber is in a range of 1/20-1/10. 
     
     
         5 . The ultraviolet absorption glass according to  claim 4 , wherein in the ultraviolet absorption coating, a molar ratio of MOz to ultraviolet absorber is in a range of 1/18-1/12. 
     
     
         6 . The ultraviolet absorption glass according to  claim 1 , wherein a color difference between the ultraviolet absorption glass and the glass substrate is in a range of ΔE*ab≤2.0. 
     
     
         7 . The ultraviolet absorption glass according to  claim 1 , wherein the ultraviolet absorber is benzophenone ultraviolet absorber, benzimidazole ultraviolet absorber or triazine ultraviolet absorber. 
     
     
         8 . The ultraviolet absorption glass according to  claim 1 , wherein the ultraviolet absorption coating further comprises H +  or an alkali metal ion. 
     
     
         9 . The ultraviolet absorption glass according to  claim 1 , wherein the ultraviolet absorption coating is formed by drying a coating liquid at a temperature between 100° C. and 200° C. 
     
     
         10 . The ultraviolet absorption glass according to  claim 9 , wherein the coating liquid comprises partially hydrolyzed condensates of a silane compound, an ultraviolet absorber, a precursor of MOz, deionized water and at least one alcohol, and wherein the precursor is soluble in deionized water and/or the alcohol to produce MOz. 
     
     
         11 . The ultraviolet absorption glass according to  claim 10 , wherein the precursor is at least one compound selected from the group consisting of LiVO 3 , HMnO 4 , Na 2 FeO 4 , Li 2 MoO 4 , H 2 RuO 4 , Na 2 WO 4 , H 2 ReO 4 , K 2 OsO 4 , NaGaO 2 , Na 2 SnO 3 . 
     
     
         12 . The ultraviolet absorption glass according to  claim 10 , wherein the alcohol is selected from ethanol and isopropanol. 
     
     
         13 . The ultraviolet absorption glass according to  claim 1 , wherein the glass substrate is a green float glass.