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Glass composition for absorbing ultraviolet ray and infrared ray and its application

A glass composition and ultraviolet technology, applied in windshields, transportation and packaging, windows, etc., can solve the problems of reducing near-infrared transmittance, prone to flaws on the glass surface, affecting visible light transmittance, etc., to reduce the temperature , Excellent heat insulation effect, stable physical and chemical properties

Active Publication Date: 2014-03-19
何开生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A patent for infrared insulation and heat-absorbing float glass (application number: 201110189471.8), due to containing SnO 2 If ZnO and ZnO are too high, the glass surface is prone to flaws, which cannot be formed by float process, and seriously affects the visible light transmittance, and the heat insulation effect is not ideal
[0014] To sum up, the current technical level of super heat-absorbing glass at home and abroad is limited to the misunderstanding of using ferrous oxide alone to reduce the transmittance of near-infrared rays, which is difficult to achieve from the current known technology of

Method used

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  • Glass composition for absorbing ultraviolet ray and infrared ray and its application
  • Glass composition for absorbing ultraviolet ray and infrared ray and its application
  • Glass composition for absorbing ultraviolet ray and infrared ray and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Taking the preparation of a light blue-green glass composition with a thickness of 2mm as an example, in a zirconia crucible with a temperature resistance of 2000°C, add the following raw materials: quartz sand: 500 grams, potassium feldspar: 5 grams, limestone: 30 grams, dolomite : 160g, Soda Ash: 200g, Diboron Trioxide: 4g, Fluorite: 6g, Glauber’s Salt: 6g, Carbon Powder: 1g; the coloring and coordination part of the glass body that absorbs ultraviolet rays and infrared rays can be dosed as needed.

[0067] Mix the above raw materials evenly, add 1 gram of reducing agent carbon powder to control the redox ratio, control the melting temperature to 1500-1550°C, heat for 30 minutes, heat to 1500°C, keep for another 30 minutes, then raise the temperature to 1530°C, and then , carry out clarification and homogenization, the clarification temperature is from 1450 ° C to 1300 ° C, the time is 30 minutes, finally, the molten glass liquid is poured into the molding template for...

Embodiment 2

[0079] Taking the blue-green glass composition with a thickness of 4mm as an example, add the following raw materials into a zirconia crucible with a temperature resistance of 2000°C: quartz sand: 530 grams, potassium feldspar: 8 grams, limestone: 20 grams, dolomite: 155 grams Grams, soda ash: 190 grams, boron trioxide: 3 grams, fluorite: 5 grams, Glauber’s salt: 6 grams, carbon powder: 1 gram; the coloring coordination part of the glass body that absorbs ultraviolet and infrared rays: according to demand. The method for preparing the glass composition is the same as above, so it will not be repeated here.

[0080] The ingredients to obtain the glass composition are as follows:

[0081] Table 5 Glass Components in 4mm Glass Composition

[0082]

[0083] 17

[0084] Table 6 Redox parameters in 4mm glass composition

[0085]

[0086] Table 7 Spectral Properties of 4mm Glass Compositions

[0087]

[0088] In Table 5 and Table 6, co...

Embodiment 3

[0090] Taking the blue-green glass composition with a thickness of 5mm as an example, add the following raw materials to a zirconia crucible with a temperature resistance of 2000°C: quartz sand: 550 grams, potassium feldspar: 6 grams, limestone: 15 grams, dolomite: 160 grams, soda ash: 195 grams, boron trioxide: 3 grams, fluorite: 5 grams, Glauber's salt: 6 grams, carbon powder: 1 gram; the coloring coordination part of the glass body that absorbs ultraviolet rays and infrared rays: according to demand. The method for preparing the glass composition is the same as above, so it will not be repeated here.

[0091] The ingredients to obtain the glass composition are as follows:

[0092] Table 8 Glass Components in 5mm Glass Composition

[0093]

[0094] Table 9 Redox parameters in 5mm glass composition

[0095]

[0096] Table 10 Spectral Properties of 5mm Glass Compositions

[0097]

[0098] combine Figure 4 As shown, the above spectral perf...

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Abstract

The invention relates to a glass composition for absorbing ultraviolet ray and infrared ray, which comprises a glass basic composition (weight ratio): 60-75% of SiO2, 8-20% of Na2O, 3-12% of CaO, 0.1-5% of Al2O3, 2-5% of MgO; 0.02-7% of K2O, 0.1-5% of BaO and 0.01-0.4% of SO3; and a glass body coloring coordination part for absorbing ultraviolet ray and infrared ray: 0.22-1.35% of Fe2O3, 0.001-0.8% of ZrO2+HfO2, 0-0.5% of Cl, 0-2% of B2O3, 0.01-0.8% of TiO2, 0.001-0.06% of CuO; 0-2.0% of Br, 0-0.02% of MnO, 0-2.0% of F, 0.001-0.5% of Sr and 0.005-2.2% of CeO2. The redox ratio of Fe2O3 in the glass composition is 0.4-0.8. Rare metals and rare earth metal compound with a certain amount can be added in the glass composition, limitation of the current heat insulation glass can be breakthrough, chemical oxygen demand of the raw materials and the redox ratio can be controlled in a reasonable mode, obstruction to ultraviolet ray, infrared ray and total energy can be effectively realized, visible light transmittance is simultaneously increased, so that heat insulation glass capable of strongly absorbing the ultraviolet ray and near infrared can be obtained.

Description

technical field [0001] The invention relates to a glass composition, especially a glass composition capable of strongly absorbing ultraviolet rays and infrared rays and its application. Background technique [0002] Due to global warming, related foreign companies, represented by PPG of the United States, have invested a lot of research in absorbing ultraviolet and near-infrared heat insulating glass, and applied for more than 300 patents in this area internationally, of which Japan is here More than 100 patents have been applied for in one field, accounting for one-third of the world's glass energy-saving and emission-reduction technology patents. The main companies applying for patents in Japan include CENTRA, GLASS, CLLTD, NIPPON SHEETGLASS COLTD, and ASAHIGIASS. [0003] The glass system capable of absorbing ultraviolet rays and near-infrared rays researched by NIPPON SHEET GLASS COLTD is sodium calcium silica alkali glass, and the coloring component is Fe 2 o 3 0.4-0....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C4/08C03C3/11C03C3/118C03C27/12B60J1/02
CPCC03C3/11C03C3/118C03C4/02C03C4/082C03C4/085G02B5/208G02B5/226
Inventor 何开生胡义湘何海波曾光明楊其翰谭四喜胡阳胡干
Owner 何开生
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