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Aerogel-modified high-strength fireproof mortar material and preparation method thereof

A mortar material and airgel technology, applied in the field of building materials, can solve the problems of threatening people's life and property safety, poor thermal insulation effect, high thermal conductivity, etc., and achieve excellent mechanical properties, good fire resistance, and simple preparation.

Inactive Publication Date: 2021-03-23
SUZHOU JUNYUE NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The insulation materials used are mainly organic insulation materials, which have low thermal conductivity and light bulk density, but poor fire resistance. In the event of a fire, it will seriously threaten the safety of people's lives and properties.
Inorganic thermal insulation materials have good weather resistance and fire resistance, but have higher thermal conductivity and heavier bulk density, and the thermal insulation effect is not as ideal as organic thermal insulation materials.

Method used

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  • Aerogel-modified high-strength fireproof mortar material and preparation method thereof
  • Aerogel-modified high-strength fireproof mortar material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Mix 0.2g melamine and 15ml concentration of 8mg / ml graphene oxide solution, then add 1ml mass concentration of 37% formaldehyde solution, add 0.1g nano-titanium dioxide after mixing, and place the prepared mixed solution in The reaction was carried out in the autoclave at 180°C for 10 hours. After the reaction, the solid was separated and dried, and then placed in a muffle furnace. Under an oxygen-free nitrogen atmosphere, the temperature was first raised to 800°C at a rate of 10°C / min for 3 hours. Then the temperature was lowered to 600°C at a rate of 3°C / min, heat preservation treatment was carried out for 2 hours, and finally cooled to room temperature with the furnace to prepare nano-titanium dioxide modified with nitrogen-doped graphene airgel;

[0040] (2) Mix and stir 0.2g zirconium oxychloride, 1ml tetraethyl orthosilicate, 15ml dehydrated alcohol and 20ml deionized water evenly to obtain a silicon / zirconium composite sol, and add the above-mentioned 10g nitr...

Embodiment 2

[0043] (1) Mix 0.4g melamine and 15ml concentration of 15mg / ml graphene oxide solution, then add 1ml mass concentration of 37% formaldehyde solution, add 0.2g nano-titanium dioxide after mixing, and place the prepared mixed solution in The reaction was carried out at 180°C in the autoclave for 15 hours. After the reaction, the solid was separated and dried, and then placed in a muffle furnace. Under an oxygen-free nitrogen atmosphere, the temperature was first raised to 800°C at a rate of 10°C / min for 3 hours. Then the temperature was lowered to 600°C at a rate of 3°C / min, heat preservation treatment was carried out for 2 hours, and finally cooled to room temperature with the furnace to prepare nano-titanium dioxide modified with nitrogen-doped graphene airgel;

[0044] (2) Mix and stir 0.4g zirconium oxychloride, 1ml tetraethyl orthosilicate, 15ml absolute ethanol and 20ml deionized water evenly to obtain a silicon / zirconium composite sol, add the nitrogen-doped graphene prepa...

Embodiment 3

[0047] (1) Mix 0.3g melamine and 15ml concentration of 10mg / ml graphene oxide solution, then add 1ml mass concentration of 37% formaldehyde solution, add 0.15g nano-titanium dioxide after mixing, and place the prepared mixed solution in The reaction was carried out at 180°C in the autoclave for 11 hours. After the reaction, the solid was separated and dried, and then placed in a muffle furnace. Under an oxygen-free nitrogen atmosphere, the temperature was first raised to 800°C at a rate of 10°C / min for 3 hours. Then the temperature was lowered to 600°C at a rate of 3°C / min, heat preservation treatment was carried out for 2 hours, and finally cooled to room temperature with the furnace to prepare nano-titanium dioxide modified with nitrogen-doped graphene airgel;

[0048] (2) Mix and stir 0.3g zirconium oxychloride, 1ml tetraethyl orthosilicate, 15ml absolute ethanol and 20ml deionized water evenly to obtain a silicon / zirconium composite sol, and add the above-mentioned 10g nitr...

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Abstract

The invention discloses an aerogel-modified high-strength fireproof mortar material. The high-strength fireproof mortar material comprises cement, sand, polypropylene fibers, a composite reinforcing filler, a water reducing agent, a flame retardant and cellulose ether, wherein the sand is a mixture of hill sand and machine-made sand; the cellulose ether is a mixture of hydroxypropyl methyl cellulose ether and hydroxyethyl methyl cellulose ether; the composite reinforcing filler is a mixture of vitrified micro beads and a mesoporous nano-material mixed according to a certain mass ratio; the mesoporous nano-material is formed by taking nanometer titanium dioxide particles as a core layer and sequentially coating the surface of the core layer with a nitrogen-doped graphene aerogel layer and azirconium oxide / silicon oxide aerogel layer. The invention also discloses a preparation method of the high-strength fireproof mortar material. The mortar material provided by the invention not only has good fireproof performance, but also has good mechanical properties.

Description

technical field [0001] The invention relates to the field of building materials, in particular to an airgel-modified high-strength fireproof mortar material and a preparation method thereof. Background technique [0002] Energy is one of the pillars of national economic development, an important material basis for the development of human society, and a prerequisite for economic growth and development. my country's energy situation is quite severe, and the per capita resource occupancy rate is far lower than the world average. my country's energy supply and demand are very tight, and building energy consumption accounts for one-third of the total energy consumption in society, so building energy conservation is of great significance. The application of thermal insulation materials is very effective in reducing the energy consumption of buildings in long-term use. At present, thermal insulation materials mainly include thermal insulation boards and thermal insulation mortar....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/28
CPCC04B28/04C04B2111/28C04B2201/32C04B2201/50C04B14/068C04B16/0633C04B22/06C04B22/16C04B24/383C04B14/24C04B14/305C04B24/18C04B24/125C04B22/12C04B24/40C04B14/024
Inventor 张鑫扬张昭张锦文
Owner SUZHOU JUNYUE NEW MATERIAL TECH
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