Reinforced foaming ceramic inorganic heat-preserving board and preparation method thereof

A technology of inorganic thermal insulation board and foamed ceramics, applied in the field of preparation of reinforced foamed ceramic inorganic thermal insulation board and thermal insulation board, can solve the problems of decreased thermal insulation performance, indoor condensation, cold and heat bridges, etc., and achieves light weight and increased surface area. The effect of roughness, material neatness

Inactive Publication Date: 2014-04-09
CHONGQING LONGZHE HIGH TECH MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During construction, the board gap between the boards is relatively wide, which is easy to form a cold and heat bridge, resulting in a decrease in thermal insulation performance and indoor condensation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The parts by weight of the raw materials are: nano-scale silica fume: 60 parts; cement: 5 parts; lime: 5 parts; gypsum: 3 parts; hydrogen peroxide: 0.3 parts; titanium reinforcement (titanium dioxide): 0.8 parts. These raw materials are mixed, and water with a mass of 30% of the total mass of the above-mentioned materials is added and mixed evenly. Lay a layer of fiber reinforcement layer (non-woven fabric or glass fiber mesh) in the mold, then inject the mixed material into the mold, foam at 20-35°C for 20 minutes, then mold, release the mold, and put it at 220°C-280 The product is cured in an autoclave at ℃, pressure of 3.8MPa-4.2MPa, and relative humidity of 80%-100% for 6 hours.

[0022] Its thermal conductivity: 0.052W / m·k;

[0023] Compressive strength: 7.2MPa;

[0024] Density: 215kg / m 3 .

Embodiment 2

[0026] The weight parts of the raw materials of the board are: nano-scale silica fume: 90 parts; cement: 15 parts; lime: 8 parts; aluminum powder: 3.0 parts, titanium additive (titanium concentrate): 3.4 parts, mix these raw materials , And add water with a mass of 40% of the total mass of the above materials, stir and mix well. Lay a layer of fiber reinforcement layer (non-woven fabric or glass fiber mesh) in the mold, then inject the mixed material into the mold, foam at 20-35°C for 60 minutes, and then mold, release the mold and put it at 220°C-280 The product is cured in an autoclave at ℃, pressure of 3.8MPa-4.2MPa, and relative humidity of 80%-100% for 8 hours.

[0027] Its thermal conductivity is 0.048W / m·k;

[0028] Compressive strength: 5.6MPa;

[0029] Density: 205kg / m 3 .

Embodiment 3

[0031] Parts by weight of the raw materials of the board: nano-scale silica fume: 120 parts; cement 30 parts; lime: 14 parts; foaming agent 1.0 part; boron-based reinforcement (borax): 2.5 parts, mix these raw materials and add the mass Stir and mix evenly with water that is 40% of the total mass of the above materials. Lay a layer of fiber reinforcement layer (non-woven fabric or glass fiber net) in the mold, then inject the mixed material into the mold, foam at 20-35°C for 50 minutes, and then mold, release the mold, put it at 220°C-280 The product is cured in an autoclave at ℃, pressure of 3.8MPa-4.2MPa, and relative humidity of 80%-100% for 10 hours.

[0032] Its conductivity coefficient is 0.058W / m·k;

[0033] Compressive strength: 9MPa;

[0034] Density: 235kg / m 3 .

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Abstract

The invention discloses a reinforced foaming ceramic inorganic heat-preserving board. The reinforced foaming ceramic inorganic heat-preserving board comprises the following components in parts by weight: 60 to 120 parts of nanometer silica fume, 5 to 30 parts of cement, 5 to 14 parts of lime, 0.3 to 3 parts of foaming agent and 0.8 to 3.4 parts of reinforcing element, wherein the reinforcing element is titanium or boric reinforcing substance. The invention also provides a preparation method of the reinforced foaming ceramic inorganic heat-preserving board. The product is obtained by foaming and steaming the raw materials. The heat conduction coefficient of the nanometer silica fume is low, so that the convection movement of the air molecules can be effectively prevented, a purpose of heat preservation and flame retardance can be realized, and the cold-hot bridge is unlikely to form. By adding the reinforcing element, the mullite with high strength is formed, so that the compression-resisting strength and the bending-resisting strength are higher. The reinforced foaming ceramic inorganic heat-preserving board has the advantages that the strength is high, the density is low, and the heat conduction coefficient is low.

Description

Technical field [0001] The invention relates to a thermal insulation board, in particular to a reinforced foamed ceramic inorganic thermal insulation board, and also relates to a preparation method of the thermal insulation board. Background technique [0002] With the sustained and rapid economic development, energy and resource issues have become increasingly prominent. Environmental protection, energy conservation, emission reduction, rational use of resources, and development of a low-carbon circular economy have become major themes of national concern. [0003] On June 10, 2005, the Ministry of Construction proposed at the building energy conservation symposium of the 14 northern provinces and cities: By 2010, the total energy consumption of urban buildings in the country will achieve 50% of building energy efficiency; the energy-saving renovation of existing buildings will be gradually carried out and large cities will be completed. Renovate 25% of the area, 15% for medium-si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B14/04
Inventor 姜伟基周癸豆李云妹
Owner CHONGQING LONGZHE HIGH TECH MATERIAL
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