Preparation of glass coating liquid having ultraviolet shielding function

A technology of external shielding and coating solution, which is applied in the field of preparation of glass coating solution, can solve the problem of high cost and achieve good light stability

Inactive Publication Date: 2009-03-04
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the present invention, the preparation method cost of most glass coating liquids is higher at present

Method used

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  • Preparation of glass coating liquid having ultraviolet shielding function
  • Preparation of glass coating liquid having ultraviolet shielding function
  • Preparation of glass coating liquid having ultraviolet shielding function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The present invention adopts a process method for preparing a glass coating solution with ultraviolet shielding function, and has the following process steps:

[0024] (1) Measure 41ml of ethyl orthosilicate and dissolve it in 32ml of ethanol.

[0025] (2) Measure 27ml of deionized water and adjust the pH to 2 with hydrochloric acid.

[0026] (3) Weigh 0.0856g of 2-methyl-5-nitroimidazole-1-ethanol, add it to the aqueous solution prepared in step (2), and heat to boiling until 2-methyl-5-nitroimidazole- Stop heating after 1-ethanol is dissolved, and add 1.7 g of glacial acetic acid after natural cooling.

[0027] (4) The ethyl orthosilicate ethanol solution prepared in step (1) is heated and stirred at 50° C., while the solution prepared in step (3) is slowly added dropwise.

[0028] (5) Heat and stir the mixture prepared in step (4) at 50°C for 2 hours.

[0029] (6) The sol prepared in step (5) is aged for 24-28 hours.

[0030] The ultraviolet transmission spectrum of the ...

Embodiment 2

[0034] The present invention adopts a process method for preparing a glass coating solution with ultraviolet shielding function, and has the following process steps:

[0035] (1) Measure 41ml of ethyl orthosilicate and dissolve it in 32ml of ethanol.

[0036] (2) Measure 27ml of deionized water and adjust the pH to 2 with hydrochloric acid.

[0037](3) Weigh 0.0428g of 2-methyl-5-nitroimidazole-1-ethanol, add it to the aqueous solution prepared in step (2), and heat to boiling until 2-methyl-5-nitroimidazole- Stop heating after the 1-ethanol is dissolved, and add 1.7 g of glacial acetic acid after cooling.

[0038] (4) The ethyl orthosilicate ethanol solution prepared in step (1) is heated and stirred at 50° C., while the solution prepared in step (3) is slowly added dropwise.

[0039] (5) Heat and stir the mixture prepared in step (4) at 50°C for 2 hours.

[0040] (6) The sol prepared in step (5) is aged for 24-28 hours.

[0041] The ultraviolet transmission spectrum of the glass...

Embodiment 3

[0045] The present invention adopts a process method for preparing a glass coating solution with ultraviolet shielding function, and has the following process steps:

[0046] (1) Measure 41ml of ethyl orthosilicate and dissolve it in 32ml of ethanol.

[0047] (2) Measure 27ml of deionized water and adjust the pH to 2 with hydrochloric acid.

[0048] (3) Weigh 0.1284g of 2-methyl-5-nitroimidazole-1-ethanol, add it to the aqueous solution prepared in step (2), and heat to boiling until 2-methyl-5-nitroimidazole-1 -Stop heating after the ethanol is dissolved, and add 1.7 g of glacial acetic acid after cooling.

[0049] (4) The ethyl orthosilicate ethanol solution prepared in step (1) is heated and stirred at 50° C., while the solution prepared in step (3) is slowly added dropwise.

[0050] (5) Continue heating and stirring the mixed solution prepared in step (4) at 50°C for 2 hours.

[0051] (6) The solution prepared in step (5) is aged for 24 to 28 hours.

[0052] The ultraviolet tr...

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Abstract

The invention relates to a preparation method for a glass coating liquid which is prepared by utilizing the sol-gel method, and has ultraviolet shielding function and high visible light transmittance. The preparation method comprises the following steps: 2-methyl-5-azomycin-1-ethanol is added into the process of using the sol-gel method for preparing the coating liquid, wherein, the concentration of 2-methyl-5-azomycin-1-ethanol is 0.01 g / L-5 g / L compared with the total amount of the glass coating liquid; and the prepared glass coating liquid is enabled to have ultraviolet shielding function and good light stability through the interaction of 2-methyl-5-azomycin-1-ethanol and silicon dioxide. The ultraviolet transmittance and the visible light transmittance of the glass coating liquid are adjusted by regulating the concentration of the 2-methyl-5-azomycin-1-ethanol in a glass coating liquid system. The prepared glass coating liquid has the ultraviolet shielding function, and has the advantages of ultraviolet obstruction, high transparency, simple preparing process, low cost, good light stability, and the like.

Description

1. Technical Field [0001] The invention relates to a method for preparing a glass coating solution with ultraviolet shielding function and high transmittance to visible light by using a sol-gel method. 2. Technical background [0002] Ultraviolet is a kind of electromagnetic wave rays shorter than visible light. Its wavelength is 200nm-400nm. According to its wavelength range, it can be divided into near ultraviolet (UVA): 320nm~400nm, far ultraviolet (UVB): 290nm~320nm and ultra-short ultraviolet (UVC). ): 100nm~290nm. The shorter the ultraviolet wavelength, the higher the energy, the greater the damage or damage to the human body, polymer materials, wood, plastic, paper, etc. In many occasions, ultraviolet rays need to be blocked. It is a common method to coat the surface of the glass with an anti-ultraviolet film and use this kind of glass to block the ultraviolet rays. [0003] There are two methods for preparing coated glass, physical method and chemical method. Physical met...

Claims

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Application Information

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IPC IPC(8): C03C17/30
Inventor 叶巧明张其春胡业勤杨希郭珂维
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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