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Inorganic-organic composite fireproof thermal-insulation board and preparation method thereof

A technology of fireproof insulation board and insulation board, which is applied in the field of building materials, can solve the problems of high thermal conductivity, polluted air, poor heat resistance, etc., and achieve the effects of low thermal conductivity, good fireproof performance, and good bonding force

Inactive Publication Date: 2015-11-25
LIAONING DONG AO NON METAL MATERIAL DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many building insulation materials. The most prominent problem in my country's building exterior wall insulation technology at this stage is the contradiction between energy saving and fire prevention.
[0003] Organic insulation materials such as extruded boards, polystyrene boards, and polyurethane insulation boards have good insulation effects and are convenient for construction, but they also have poor heat resistance, poor aging resistance, easy to burn and release a lot of heat when burned, produce toxic fumes, accelerate There are many disadvantages such as the spread of fire; although inorganic thermal insulation materials such as rock wool insulation boards and foamed cement have excellent fire performance, they also have disadvantages such as poor thermal insulation effect, easy water absorption, and large capacity, and they not only pollute the air but also easily breed bacteria. Health is easy to cause harm. Therefore, the development of new inorganic-organic composite insulation products is the main goal of the industry. At present, the main problems in the development and use of such products are:
[0004] 1. It has a large capacity and cannot be used as a lightweight material for ceilings and other parts;
[0005] 2. The thermal conductivity is high and cannot be used as an insulation material;
[0006] 3. Easy aging, poor water resistance
[0007] 4. The scope of application is small

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1) Make the mold according to the conventional process;

[0038] 2) Modification of diatomite: place the diatomite raw soil in a muffle furnace at 100-500°C for 5-10 hours for pretreatment, then place it in an electric blast drying oven at 25°C for 5-10 hours, take out the sample and add it to In the absolute ethanol solution, add dilute acetic acid solution dropwise to adjust the pH to 4~5, pre-stir in a water bath at a temperature of 70~80°C for 30~60min, then add the preset amount of silane coupling agent KH- 570, continue to stir for 2-6 hours, then filter and wash, put it in an electric blast drying oven at 105°C for 5-10 hours, and then take it out to obtain surface hydrophobically modified diatomite;

[0039] 3) To reconcile the foaming liquid, mix 200 parts of magnesium chloride solution with a concentration of 10% to 20% and 1 part of coagulant in a high-speed disperser and stir evenly, then add 1 part of foaming agent to reconcile and stir, and the stirring sp...

Embodiment 2

[0044] 1) Make the mold according to the conventional process;

[0045] 2) Modification of diatomite: place the diatomite raw soil in a muffle furnace at 100-500°C for 5-10 hours for pretreatment, then place it in an electric blast drying oven at 25°C for 5-10 hours, take out the sample and add it to In the absolute ethanol solution, add dilute acetic acid solution dropwise to adjust the pH to 4~5, pre-stir in a water bath at a temperature of 70~80°C for 30~60min, then add the preset amount of silane coupling agent KH- 570, continue to stir for 2-6 hours, then filter and wash, place in an electric blast drying oven at 105°C for 5-10 hours, and then take it out to obtain surface hydrophobically modified diatomite;

[0046] 3) To reconcile the foaming solution, mix 1000 parts of magnesium chloride solution with a concentration of 10% to 20% and 10 parts of coagulant in a high-speed disperser and stir evenly, then add 10 parts of foaming agent to reconcile and stir, and the stirr...

Embodiment 3

[0051] 1) Make the mold according to the conventional process;

[0052] 2) Modification of diatomite: place the diatomite raw soil in a muffle furnace at 100-500°C for 5-10 hours for pretreatment, then place it in an electric blast drying oven at 25°C for 5-10 hours, take out the sample and add it to In the absolute ethanol solution, add dilute acetic acid solution dropwise to adjust the pH to 4~5, pre-stir in a water bath at a temperature of 70~80°C for 30~60min, then add the preset amount of silane coupling agent KH- 570, continue to stir for 2-6 hours, then filter and wash, place in an electric blast drying oven at 105°C for 5-10 hours, and then take it out to obtain surface hydrophobically modified diatomite;

[0053]3) To reconcile the foaming solution, mix 600 parts of magnesium chloride solution with a concentration of 10% to 20% and 5 parts of coagulant in a high-speed disperser and stir evenly, then add 5 parts of foaming agent to reconcile and stir, and the stirring ...

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Abstract

The invention belongs to the technical field of building materials, and particularly relates to an inorganic-organic composite fireproof thermal-insulation board and a preparation method thereof. The thermal-insulation board is prepared from the following raw materials in parts by weight: 200-1000 parts of magnesium chloride, 200-1000 parts of magnesium oxide, 100-500 parts of diatomite, 50-100 parts of polystyrene, 1-10 parts of setting accelerator, 1-10 parts of foaming agent and 1-10 parts of halogenide-resistant modifier. The preparation method comprises the following steps: uniformly stirring the magnesium chloride and setting accelerator; adding the foaming agent, and stirring to form a foamed solution; adding the magnesium oxide and modified diatomite, stirring uniformly, adding the halogenide-resistant modifier and polystyrene particle, and continuously stirring; curing in a mold; and demolding to form. The inorganic-organic composite fireproof thermal-insulation board develops the diatomite resource which is most suitable to be used as the thermal-insulation building material; the diatomite with unique diatomite structure, which has the advantages of small volume weight, low density, favorable binding force with the material substrate and the like, can ensure the thermal-insulation property of the board and enhance the fireproof property and flame retardancy of the board when being used as the aggregate of the fireproof thermal-insulation board, thereby solving the contradiction between the fireproof property and thermal insulation in the existing thermal-insulation board.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an inorganic-organic composite fireproof insulation board and a preparation method thereof. Background technique [0002] At present, there are many building insulation materials. At this stage, the most prominent problem of my country's building exterior wall insulation technology is the contradiction between energy saving and fire prevention, that is, energy-saving insulation materials are not fire-proof, and fire-proof insulation materials have poor energy-saving effects. [0003] Organic insulation materials such as extruded boards, polystyrene boards, and polyurethane insulation boards have good insulation effects and are convenient for construction, but they also have poor heat resistance, poor aging resistance, easy to burn and release a lot of heat when burned, produce toxic fumes, accelerate There are many disadvantages such as the spread of fire; ...

Claims

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Application Information

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IPC IPC(8): C04B28/32C04B14/08C04B16/04C04B111/28
Inventor 林永忠苏菲苏小飞卢婷
Owner LIAONING DONG AO NON METAL MATERIAL DEV
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