Heat-insulating glass glaze and preparation method thereof

A technology for insulating glass and glaze, applied in the field of insulating glass glaze and its preparation, can solve the problem of high glass transition temperature of glass powder and achieve the effect of improving the transmittance of visible light

Inactive Publication Date: 2021-05-25
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for adding tiny amounts (less than 1%) of lithium oxide to lower its softening points at room temperatures without affecting other properties like optical clarity. By doing this, the resulting heat reflective coatings have better visual transmission compared with traditional methods such as vacuum deposition techniques used during manufacturing processes. Additionally, reducing thermal conduction coefficients improves barriers against infra red rays while maintaining good durability over time.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the efficiency at transmitting radiations or infrared rays through windows made up mostly of low-e glass that reduce solar absorption without losing much less than needed during winter months due to their ability to reflect sunlight back into space effectively.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing a heat-insulating glass frit, comprising uniformly mixing low-melting-point glass powder, a heat radiation blocker, sodium silicate and a heat-conducting blocker to obtain a heat-insulating glass frit; The ratio of powder, heat conduction blocker, sodium silicate and heat radiation blocker is 70:5:1:5, heat radiation blocker is ATO (antimony doped tin oxide) nano powder, heat conduction blocker is nano silicon dioxide airgel.

[0029] The preparation method of low melting point glass powder, comprises the following steps:

[0030] 1) Mix the raw materials evenly, and melt at 600°C for 30 minutes to obtain molten glass, wherein the raw materials include: 25 parts by mass of SnCl 2 , 10 parts by mass of P 2 o 5 , 10 mass parts of B 2 o 3 , 0.5 parts by mass of Li 2 O, 2 parts by mass of ZrO 2 , 3 parts by mass of Na 2 O, 1 mass part of NaF, 10 mass parts of Bi 2 o 3 ;

[0031] 2) Quenching the molten glass: Pour the molten glass into a coppe

Embodiment 2

[0034] A method for preparing a heat-insulating glass frit, comprising uniformly mixing low-melting-point glass powder, a heat radiation blocker, sodium silicate and a heat-conducting blocker to obtain a heat-insulating glass frit; The ratio of powder, heat conduction blocker, sodium silicate and heat radiation blocker is 70:5:2:5, heat radiation blocker is ATO (antimony doped tin oxide) nano powder, heat conduction blocker is nano silicon dioxide airgel.

[0035] The preparation method of low melting point glass powder, comprises the following steps:

[0036] 1) Mix the raw materials evenly, and melt at 600°C for 30 minutes to obtain molten glass, wherein the raw materials include: 25 parts by mass of SnCl 2 , 10 parts by mass of P 2 o 5 , 10 mass parts of B 2 o 3 , 0.5 parts by mass of Li 2 O, 2 parts by mass of ZrO 2 , 3 parts by mass of Na 2 O, 1 mass part of NaF, 10 mass parts of Bi 2 o 3 ;

[0037] 2) Quenching the molten glass: Pour the molten glass into a coppe

Embodiment 3

[0040] A method for preparing a heat-insulating glass frit, comprising uniformly mixing low-melting-point glass powder, a heat radiation blocker, sodium silicate and a heat-conducting blocker to obtain a heat-insulating glass frit; The ratio of powder, heat conduction blocker, sodium silicate and heat radiation blocker is 70:5:3:5, heat radiation blocker is ATO (antimony doped tin oxide) nano powder, heat conduction blocker is nano silicon dioxide airgel.

[0041] The preparation method of low melting point glass powder, comprises the following steps:

[0042] 1) Mix the raw materials evenly, and melt at 600°C for 30 minutes to obtain molten glass, wherein the raw materials include: 25 parts by mass of SnCl 2 , 10 parts by mass of P 2 o 5 , 10 mass parts of B 2 o 3 , 0.5 parts by mass of Li 2O, 2 parts by mass of ZrO 2 , 3 parts by mass of Na 2 O, 1 mass part of NaF, 10 mass parts of Bi 2 o 3 ;

[0043] 2) Quenching the molten glass: Pour the molten glass into a copper

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Abstract

The invention discloses a heat-insulating glass glaze and a preparation method thereof, and the preparation method of the heat-insulating glass glaze comprises the step of uniformly mixing low-melting-point glass powder, a heat radiation blocking agent, sodium silicate and a heat conduction blocking agent to obtain the heat-insulating glass glaze. The preparation method of the low-melting-point glass powder comprises the following steps: uniformly mixing raw materials, melting at 500-700 DEG C for 10-50 minutes to obtain molten glass, and quenching the molten glass to obtain bulk glass; and crushing the bulk glass, and performing ball milling in a ball mill to obtain the low-melting-point glass powder. The components of the low-melting-point glass powder are adjusted, and a small amount of Li2O, ZrO2, Na2O and NaF are introduced into the low-melting-point glass powder, so that the glass-transition temperature of the low-melting-point glass powder can be reduced to be less than or equal to 300 DEG C, and the visible light transmittance of the transparent heat-insulating coating can be improved to be greater than or equal to 90%.

Description

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Claims

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Application Information

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Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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