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A kind of aerogel-modified magnesium oxysulfide fireproof insulation board and preparation method thereof

A technology of fire-proof insulation board and airgel, which is applied in the field of materials to achieve the effects of improving comprehensive performance, improving heat insulation performance and reducing density

Active Publication Date: 2022-06-21
响水华夏特材科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the present invention provides an airgel-modified magnesium oxysulfide fire-proof insulation board and its preparation method. Excellent properties such as temperature resistance and fire prevention, through the improvement of effective material composition and reasonable production process improvement, the use of airgel to modify and compound magnesium oxysulfide materials can effectively make up for the poor water resistance of existing magnesium oxysulfide boards , high density, high thermal conductivity and other defects

Method used

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  • A kind of aerogel-modified magnesium oxysulfide fireproof insulation board and preparation method thereof
  • A kind of aerogel-modified magnesium oxysulfide fireproof insulation board and preparation method thereof

Examples

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Effect test

Embodiment 1

[0089] A preparation method of an aerogel-modified magnesium oxysulfide fireproof insulation board, which specifically comprises the following steps:

[0090] 34kg of industrial magnesium sulfate heptahydrate was added to 22kg of water, and the solution was fully stirred and dissolved to obtain a magnesium sulfate solution. Gradually add it to the mixed powder of 0.7kg EVA rubber powder, 1.2kg citric acid and 10kg aerogel composite powder, and mix it evenly, and conduct high-speed dispersion for 60min at a gradually increasing speed of 300-3000r / min through a high-speed disperser to obtain improved Magnesium sulfate solution. Then add 19kg of light-burned magnesium oxide powder (the active magnesium oxide content in the light-burned magnesium oxide powder is not less than 80%), fully stir for 5 minutes to form a uniform slurry, and the slurry is sent to the plate making machine for template filling, double-sided After the alkali-resistant mesh cloth is laminated and rolled fl...

Embodiment 2

[0094] A preparation method of an aerogel-modified magnesium oxysulfide fireproof insulation board, which specifically comprises the following steps:

[0095]44kg of industrial magnesium sulfate heptahydrate was added to 33kg of water, and the solution was fully stirred and dissolved to obtain a magnesium sulfate solution. Gradually add it into the mixed powder mixed with 1.0kg EVA rubber powder, 1.0kg citric acid and 15kg aerogel composite powder, and conduct high-speed dispersion for 60min at a gradually increasing speed of 300-3000r / min through a high-speed disperser to obtain modified Magnesium sulfate solution. Then add 38kg of light-burned magnesia powder, stir fully for 5 minutes to form a uniform slurry, the slurry is sent to the plate making machine for template filling, double-sided covered with alkali-resistant glass fiber non-woven felt and rolled flat, and then gradually solidified to obtain Wet plate, after the wet plate is cut and cured naturally, the magnesium...

Embodiment 3

[0099] A preparation method of an aerogel-modified magnesium oxysulfide fireproof insulation board, which specifically comprises the following steps:

[0100] 39kg of industrial magnesium sulfate heptahydrate was added to 33kg of water, and the solution was fully stirred and dissolved to obtain a magnesium sulfate solution. Gradually add it to the mixed powder mixed with 0.5kg EVA rubber powder, 1.0kg citric acid and 13kg aerogel composite powder, and conduct high-speed dispersion for 60min at a gradually increasing speed of 300-3000r / min through a high-speed disperser to obtain modified Magnesium sulfate solution. Then add 38kg of light-burned magnesia powder, fully stir for 5min to form a uniform slurry, the slurry is sent to the plate making machine for template filling, double-sided covered with alkali-resistant glass fiber mesh cloth and rolled flat, and then gradually solidified to obtain Wet plate, after the wet plate is cut and cured naturally, the magnesium oxysulfid...

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Abstract

The invention provides an airgel modified magnesium oxysulfide fireproof insulation board and a preparation method thereof. The insulation board is composed of fiber-containing airgel powder composite powder, magnesium sulfate heptahydrate, light-burned magnesium oxide powder and Admixture composition. Its preparation method mainly includes: S1, configure magnesium sulfate aqueous solution; S2, disperse magnesium sulfate solution, airgel composite powder and admixture, etc. into a slurry fluid through a high-speed disperser; S3, mix light-burned magnesium oxide powder and stir evenly To the slurry, it is poured in the mold of the plate making machine, and after curing, forming, cutting, and curing, it becomes a magnesium oxysulfide fireproof and thermal insulation board. Compared with the traditional magnesium oxysulfide board, the fireproof and heat preservation board of the present invention not only ensures the strength of the board, but also has lower density, better heat insulation performance, significantly improved water resistance and comprehensive performance.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to an aerogel-modified magnesium oxysulfide fireproof insulation board and a preparation method thereof. Background technique [0002] Magnesium oxysulfide board is an air-hardened magnesium cementitious material product formed by activated magnesium oxide and magnesium sulfate solution. Compared with Portland cement board, magnesium oxysulfide board has relatively light texture, low thermal conductivity and excellent fire resistance. It is widely used as a refractory insulating material, such as can be used to make building wall panels, door core panels, ceiling panels, packaging boxes, etc. It can also be used for simple fire protection projects in humid environments such as basements and mines. [0003] Compared with the commonly used magnesium oxychloride board, the magnesium oxychloride board has the characteristics of higher temperature resistance and lower corrosion to m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/30C04B14/06C04B14/42C04B111/28C04B111/40C04B111/27
CPCC04B28/30C04B14/064C04B14/42C04B2111/40C04B2111/28C04B2111/27C04B2201/32C04B2201/20C04B2201/50C04B24/06C04B9/00C04B24/26
Inventor 陈勇段国栋陈世忠谢江徐兴艳张海华王浩浩
Owner 响水华夏特材科技发展有限公司
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