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Colorless transparent anti-ultraviolet radiation glass

A technology of anti-ultraviolet radiation and glass, which is applied in the field of optical glass preparation, and can solve the problems of high cost and restrictions on the promotion of anti-ultraviolet radiation glass

Inactive Publication Date: 2016-09-07
江苏通天光学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, Chinese patent (200910164470.0) discloses a colorless and transparent functional glass that strongly absorbs ultraviolet light. In this patent, cerium carbonate (Ce 2 (CO 3 ) 3 and praseodymium carbonate (Pr 2 (CO 3 ) 3 ) as a UV absorber and decolorizer for glass, and the UV transmittance of the glass is less than 20%.
The above two glasses are made of CeO 2 As a UV absorber, the UV absorption effect is good, but CeO 2 High cost, thus restricting the promotion of anti-ultraviolet radiation glass

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of preparation method of colorless transparent anti-ultraviolet radiation glass: add the nano-ZnO of 1wt% in the raw material of fusing, the nano-TiO of 0.1wt% 2 , the glass with a thickness of 4 mm was prepared, the transmittance of ultraviolet rays of the glass was 6.4%, and the transmittance of visible light was 90.6%.

Embodiment 2

[0021] A kind of preparation method of colorless transparent anti-ultraviolet radiation glass: add the nano-ZnO of 0.8wt% in the raw material of fusing, the nano-TiO of 0.2wt% 2 , the glass with a thickness of 4mm was prepared, the transmittance of ultraviolet rays of the glass was 7.2%, and the transmittance of visible light was 91.2%.

Embodiment 3

[0023] A kind of manufacture method of colorless transparent anti-ultraviolet radiation glass: add 0.6% nanometer ZnO, 0.3wt% nanometer TiO in the raw material of melting 2 , the glass with a thickness of 4 mm was prepared, the transmittance of ultraviolet rays of the glass was 7.8%, and the transmittance of visible light was 92.6%.

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Abstract

The present invention relates to colorless transparent anti-ultraviolet radiation glass, which is based on common sodium-calcium-silicate glass and supplemented with additives of nano ZnO and nano TiO2. The common sodium-calcium-silicate glass includes 64-75wt% of SiO2, 6-12wt% of CaO, 7-16wt% of Na2O, 3-6wt% of MgO, 1.5-3.5wt% of Al2O3, and 0-3wt% of B2O3. A production method is as follows: firstly, melting the raw materials of common glass; adding 0.3-1wt% of nano ZnO and 0.1-0.4wt% of nano TiO2 in the molten raw materials; evenly stirring nano ZnO, nano TiO2 and the molten raw materials; and then annealing the molten mixture, molding, polishing and grinding to obtain 4mm thick glass. The glass can shield more than 92% of the ultraviolet rays, and at the same time has better visible light transmissivity.

Description

technical field [0001] The invention relates to a colorless and transparent anti-ultraviolet radiation glass, which belongs to the field of optical glass preparation. Background technique [0002] Ultraviolet rays are electromagnetic waves with a wavelength of 100nm to 400nm, which have a bactericidal effect. But excessive ultraviolet rays can not only cause a series of changes in human body functions, but also cause harm to human skin, eyes and immune system. It can also cause deterioration of food, fading and weathering of cultural relics. In recent years, due to the thinning of the ozone layer, the amount of ultraviolet radiation has increased significantly, and people have gradually realized the importance of shielding ultraviolet rays. Therefore, the development of optical glass with ultraviolet shielding has important practical significance and use value. [0003] Due to CeO 2 is a good UV absorber, CeO 2 It is a very useful ingredient that can improve the ultravi...

Claims

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Application Information

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IPC IPC(8): C03C4/08C03C3/093
CPCC03C4/085C03C3/093
Inventor 汪国年张柯
Owner 江苏通天光学科技有限公司
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