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

A technology for inorganic thermal insulation boards and foamed ceramics, which is applied in the field of preparation of reinforced foamed ceramic inorganic thermal insulation boards and thermal insulation boards. Small, not prone to cold and heat bridge effects

Inactive Publication Date: 2015-07-15
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-sized silica fume: 60 parts; cement: 5 parts; lime: 5 parts; gypsum: 3 parts; hydrogen peroxide: 0.3 parts; titanium-based reinforcement (titanium dioxide): 0.8 parts. Mix these raw materials, and add water whose mass is 30% of the total mass of the above-mentioned materials and stir to mix evenly. Lay a layer of fiber reinforced 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 20 minutes, mold it, demould, put it into the mold at a temperature of 220°C-280°C ℃, pressure 3.8MPa-4.2MPa, and relative humidity 80%-100% in an autoclave for 6 hours to obtain the product.

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

[0023] Compressive strength: 7.2MPa;

[0024] Density: 215kg / m 3 .

Embodiment 2

[0026] The parts by weight of the raw materials of the board are: nano-scale microsilica: 90 parts; cement: 15 parts; lime: 8 parts; aluminum powder: 3.0 parts, titanium series additives (titanium concentrate): 3.4 parts, these raw materials are mixed , and add water whose quality is 40% of the total mass of the above materials and stir to mix evenly. Lay a layer of fiber reinforced 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 60 minutes, then mold, demould, put in the temperature of 220°C-280°C ℃, pressure 3.8MPa-4.2MPa, and relative humidity 80%-100% in an autoclave for 8 hours to obtain the product.

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

[0028] Compressive strength: 5.6MPa;

[0029] Density: 205kg / m 3 .

Embodiment 3

[0031] The parts by weight of raw materials for the board: nano-scale microsilica: 120 parts; cement 30 parts; lime: 14 parts; foaming agent 1.0 parts; boron-based reinforcement (borax): 2.5 parts The water that is 40% of the total mass of the above-mentioned materials is stirred and mixed evenly. Lay a layer of fiber reinforced 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 50 minutes, then mold, demould, put in the temperature of 220°C-280°C ℃, pressure 3.8MPa-4.2MPa, and relative humidity 80%-100% in an autoclave for 10 hours to obtain the product.

[0032] Its conductance 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 and emission reduction, rational use of resources, and development of low-carbon circular economy have become major themes of national concern. [0003] On June 10, 2005, the Ministry of Construction held a symposium on building energy efficiency in 14 northern provinces and municipalities. It was proposed that by 2010, the total energy consumption of urban buildings in the country will achieve 50% of building energy efficiency; Renovate 25% of the area, 15% in medium-sized cities, and 10% in small cities; by 2020, the northern and coastal economically developed...

Claims

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Application Information

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Patent Type & Authority Patents(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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