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Fireproof sound-proof heat-insulating aerogel composite material and preparation method thereof

A composite material, fire-proof and sound-proof technology, applied in the field of fire-proof, sound-proof and heat-insulating materials, can solve the problems of airgel felt powder dropping, etc., achieve the effects of enhancing heat insulation and sound insulation performance, reducing preparation process steps, and excellent fireproof performance

Active Publication Date: 2019-04-19
应急管理部四川消防研究所
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The invention discloses an airgel blanket with excellent fire resistance, which solves the problem of powder dropping in the existing airgel blanket, decomposes under high temperature conditions without producing obvious toxic smoke, has a simple preparation process, and meets the requirements of safety and environmental protection.

Method used

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  • Fireproof sound-proof heat-insulating aerogel composite material and preparation method thereof

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] A method for preparing a fire-proof, sound-insulating and heat-insulating airgel composite material, comprising the following steps:

[0024] Step 1: Wrap the fiber mat with fiber cloth;

[0025] Step 2: Dip the fiber mat wrapped in fiber cloth in Step 1 into SiO 2 in sol solution;

[0026] Step 3: After sol-gel and drying, the required fire-proof, sound-insulating and heat-insulating airgel composite material is obtained.

[0027] The fiber felt is one of aluminum silicate fiber felt and glass fiber felt; the fiber cloth is glass fiber cloth; the thickness of the fiber felt is 3-100 mm; the thickness of the fiber cloth is 0.05-0.65 mm.

[0028] Add tetraethyl orthosilicate, absolute ethanol, deionized water and N,N-dimethylformamide into the reactor at a molar ratio of 1:16:24:0.2 and stir evenly, then add 0.5mol / L hydrochloric acid ...

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Abstract

The invention discloses a fireproof sound-proof heat-insulating aerogel composite material and a preparation method thereof. The preparation method comprises the following steps: Step 1, coating fibrofelt with fibre cloth; Step 2, immersing the fibrofelt coated with fibre cloth into a SiO2 sol solution; and Step 3, carrying out sol-gel and drying processes to obtain the fireproof sound-proof heat-insulating aerogel composite material. The product has excellent flame resistance, and the powdery problem of existing aerogel felt is solved; no obvious toxic flue gas is generated by decomposition under the condition of high temperature; and the preparation process is simple and meets the safe and environmental requirements.

Description

technical field [0001] The invention relates to a fire-proof, sound-proof and heat-insulating material, in particular to a fire-proof, sound-proof and heat-insulating airgel composite material and a preparation method thereof. Background technique [0002] In the field of thermal insulation and sound insulation materials, organic materials such as polystyrene foam and polyurethane foam are currently on the market, which are easy to burn, and a large amount of toxic gases are produced during the combustion process; safety is poor, while rock wool, glass fiber, foamed cement, silicic acid Although inorganic boards such as aluminum fiber have excellent fire resistance, the thermal conductivity of inorganic insulation boards is high and the density is high. In order to achieve the ideal insulation effect, it is generally necessary to increase the thickness of the insulation layer, which not only affects the appearance, but also significantly increases the protective layer. thick...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B30/02C04B111/28C04B111/52
CPCC04B30/02C04B2111/28C04B2111/52C04B2201/32C04B14/38C04B14/064
Inventor 张怡葛欣国卢国建赵长征
Owner 应急管理部四川消防研究所
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