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Fireproof and heat-insulating glass and preparation method thereof

A heat-insulating glass and glass technology, applied in the field of special glass, can solve the problems of short fire prevention time, easy melting or ashing, easy self-explosion, etc., and achieve good fire performance

Pending Publication Date: 2018-01-30
QINHUANGDAO GLASS IND RES & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These types of fire-resistant glass are all heat-insulating fire-resistant glass (Class A). Among them, the glass used in Document 1 has poor high-temperature flame impact resistance, is brittle at high temperatures, and has a short fire-proof time. The effect is poor, it uses organic glue, and it is easy to cause secondary pollution damage at high temperature
The glass in Document 2 and Document 3 has a relatively short fireproof time due to its simple structure, poor heat insulation performance, and no fireproof adhesive layer
In addition, the glass film support in document 3 is easy to melt or ash when exposed to high heat, which will damage the vacuum layer and the heat resistance of the vacuum layer at the same time
The glass in file 4 uses PVB (polyvinyl butyral film), which has poor high temperature resistance and begins to soften when it exceeds 60°C, and has poor fire resistance
In addition, although the temperature resistance of tempered glass is three times that of ordinary glass, it will become ordinary glass when it reaches 600°C, and it is prone to self-explosion.

Method used

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  • Fireproof and heat-insulating glass and preparation method thereof
  • Fireproof and heat-insulating glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] The preparation method of this nano silicon dioxide potassium water glass glue, specifically is:

[0039] In parts by weight, add 0.2-1.0 parts of dispersant, 50-70 parts of nano-silica, and 0.2-0.8 parts of polyethylene glycol to 68-100 parts of deionized water, stir well and then add 18-48 parts of 50wt % potassium hydroxide solution, heat and stir until the solution is transparent, finally add 0.5-2.0 parts of sodium fluorosilicate and continue stirring for 10-40min, cool to room temperature, pour into a sealed container and vacuum until the solution no longer has bubbles , the resulting solution is nano silica potassium water glass glue; the dispersant can be one or more of sodium hexametaphosphate, acrylamide and sodium tripolyphosphate; polyethylene glycol can be selected from PEG400-PEG8000 poly Ethylene glycol, such as one or more of PEG2000, PEG400, PEG4000, PEG8000; the particle size of nano-silica is 1-100nm.

Embodiment 1

[0041] The fire-proof and heat-insulating glass of this embodiment, such as figure 2 As shown, from top to bottom are surface glass layer 1, vacuum layer 5, inner glass layer 2, fireproof adhesive layer 6, inner glass layer 3, vacuum layer 5, and bottom glass layer 4. Wherein, both the bottom glass layer 4 and the surface glass layer 1 are glass-ceramics with a thickness of 4 mm, the thickness of the vacuum layer 5 is 1.0 mm, and the inner glass layer 2 and the inner glass layer 3 are all coated with Low-E glass with a thickness of 3 mm. The tempered glass of the film, the fireproof adhesive layer is nano silica potassium water glass with a thickness of 2mm and a number of m of 6. Tested with the GB15763.1-2009 standard (this standard is used in the examples and comparative examples), the fire resistance limit of this fireproof and heat insulating glass is ≥ 3h.

Embodiment 2

[0043] The fire-proof and heat-insulating glass of this embodiment, such as image 3 As shown, from top to bottom are surface glass layer 1, fireproof adhesive layer 6, inner glass layer 2, fireproof adhesive layer 6, inner glass layer 3, vacuum layer 5, and bottom glass layer 4. Wherein, the bottom glass layer 4 and the surface glass layer 1 are high borosilicate glass with a thickness of 3mm, the thickness of the vacuum layer is 0.5mm, and the inner glass layer 2 and the inner glass layer 3 are both soda lime silicate with a thickness of 3mm. For glass, the fireproof adhesive layer is nano-silicon dioxide potassium water glass with a thickness of 1mm and a number of m of 6. The fire resistance limit of this fireproof and heat insulating glass is ≥2.5h.

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Abstract

The invention discloses fireproof and heat-insulating glass and a preparation method thereof. The fireproof and heat-insulating glass sequentially comprises a bottom glass layer, an inner glass layer3, an inner glass layer 2 and a surface glass layer which are separated by separation layers; the separation layers at least comprise a vacuum layer and a fire-proof adhesive layer, each separation layer is a vacuum layer or a fireproof adhesive layer. The fireproof and heat-insulating glass adopts vacuum glass, at least one of each set of the vacuum glass adopts Low-E glass, so as to block all heat conduction and heat radiation, and effectively insulates the injury of high temperature in fire. The fireproof and heat-insulating glass adopts nano-silica sodium silicate as fireproof adhesive, soas to have good fire resistance and aging resistance.

Description

technical field [0001] The invention relates to the technical field of special glass, in particular to a fireproof and heat-insulating glass with long fireproof time and good heat insulation effect and a preparation method thereof. Background technique [0002] With the rapid development of national construction, there are more and more high-rise buildings in cities, and public facilities such as high-speed railways and subways are becoming more and more popular, so fire safety has become more and more important. Fire-resistant glass is widely used because it can not only meet the requirements of lighting, but also have the delay effect of smoke insulation, heat insulation and flame prevention in the event of a fire. The fire-resistant properties of fire-resistant glass can provide valuable time for rescue in the event of a fire, maximize the protection of personnel safety, and also provide protection for reducing property losses to the greatest extent. [0003] At present,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C27/12
Inventor 梁中生梁向洲杨晨续芯如
Owner QINHUANGDAO GLASS IND RES & DESIGN INST
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