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A kind of asbestos-free composite thermal insulation material and its preparation process

A technology of composite thermal insulation and thermal insulation materials, applied in the field of inorganic thermal insulation materials, can solve the problems of complex manufacturing process, difficult construction and limited application of thermal insulation materials, and achieve the effects of light weight, low cost, and easy large-scale industrialization.

Inactive Publication Date: 2016-08-24
BEIJING AEROSPACE ZHONGFU ENTERPRISE MANAGEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The insulation materials produced by other inorganic materials (such as foam glass and floating beads) have complicated manufacturing process, high brittleness, difficult construction and high cost
also limits its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] First, 30Kg of aluminum silicate fiber, 15Kg of brucite fiber, 15Kg of ultrafine glass wool, 70Kg of sepiolite, 4Kg of chopped glass fiber, 8Kg of nano calcium carbonate, 700Kg of water, 5Kg of natron and dioctyl sulfosuccinate Sodium bicarbonate 5Kg mixed and soaked at room temperature for 12 hours. Then put the above materials into the mixing tank, stir and disperse at a high speed, the stirring speed is 2500 rpm, and stir for 60 minutes to make it evenly mixed. Then add 15Kg of neoprene latex, 0.1Kg of sodium fluorosilicate, 7Kg of sodium bicarbonate and 1.5Kg of thickener to the above materials, adjust the rotating speed to 1200 rpm, and continue to stir for 40 minutes to make it mix evenly to form a gelatinous slurry material. Finally, the above-mentioned gelled slurry is poured into a mold for drying to remove moisture, and the asbestos-free composite thermal insulation material of the present invention is obtained.

Embodiment 2

[0030] First, 5Kg of aluminum silicate fiber, 40Kg of brucite fiber, 5.5Kg of ultrafine glass wool, 30Kg of sepiolite, 0.7Kg of chopped glass fiber, 2Kg of nano-calcium carbonate, 1000Kg of water, 2Kg of natron and dioctyl succinate Mix 10Kg of sodium ester sulfonate and soak at room temperature for 12 hours. Then put the above materials into the mixing tank, stir and disperse at a high speed, the stirring speed is 3000 rpm, and stir for 40 minutes to make it evenly mixed. Then add 5Kg of neoprene latex, 0.5Kg of sodium fluorosilicate, 3Kg of sodium bicarbonate and 0.5Kg of thickener to the above materials, adjust the rotating speed to 1500 rpm, and continue to stir for 20 minutes to make it mix evenly to form a gelatinous slurry material. Finally, the above-mentioned gelled slurry is poured into a mold for drying to remove moisture, and the asbestos-free composite thermal insulation material of the present invention is obtained. The drying conditions are the same as in Exam...

Embodiment 3

[0032] First, 5Kg of aluminum silicate fiber, 40Kg of brucite fiber, 5Kg of ultrafine glass wool, 30Kg of sepiolite, 5Kg of chopped glass fiber, 10Kg of nano-calcium carbonate, 1500Kg of water, 2Kg of natron and dioctyl sulfosuccinate Mix 15Kg of sodium bicarbonate and soak at room temperature for 12 hours. Then put the above materials into the mixing tank, stir and disperse at a high speed, the stirring speed is 3000 rpm, and stir for 40 minutes to make it evenly mixed. Then add 20Kg of neoprene latex, 1Kg of sodium fluorosilicate, 3Kg of sodium bicarbonate and 2Kg of thickener to the above materials, adjust the rotating speed to 1500 rpm, and continue stirring for 20 minutes to make it mix uniformly to form a gelled slurry. Finally, the above-mentioned gelled slurry is poured into a mold for drying to remove moisture, and the asbestos-free composite thermal insulation material of the present invention is obtained. The drying conditions are the same as in Example 1.

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Abstract

The invention relates to an asbestos-free composite thermal insulation material and a preparation process, belonging to the technical field of inorganic thermal insulation materials. The asbestos-free composite thermal insulation material of the present invention is composed of: 5-30 parts of aluminum silicate fiber, 10-40 parts of brucite fiber, 5-15 parts of ultrafine glass wool, 30-70 parts of sepiolite, short 0.7-5 parts of cut glass fiber, 1-10 parts of nano-calcium carbonate, 5-20 parts of neoprene latex, 2-5 parts of natron, 0.1-1 part of sodium fluorosilicate, 3-7 parts of sodium bicarbonate, 0.5-2 parts of thickener, 5-15 parts of dioctyl sodium sulfosuccinate and no more than 1500 parts of water; it does not contain asbestos and does not pollute the environment; it has light weight, good flexibility, high rebound rate and thermal stability Good thermal conductivity, low thermal conductivity, good thermal insulation performance and so on. The method of the invention has the advantages of low cost, simple operation, easy large-scale industrialization and the like.

Description

technical field [0001] The invention relates to an asbestos-free composite thermal insulation material and a preparation process, belonging to the technical field of inorganic thermal insulation materials. Background technique [0002] As a material with low thermal conductivity, thermal insulation materials are widely used in chemical industry, petroleum, electric power, metallurgy, transportation, national defense, construction and other industries. Organic insulation materials are easy to burn, and organic materials will release toxic gases after burning, which may bring great harm to human and social safety. The current inorganic thermal insulation materials are mostly in a single structure, such as asbestos, rock wool, glass fiber, ceramic fiber and other materials. Although asbestos insulation materials have excellent performance (such as Chinese patent CN1097182A), they will seriously affect human health. Asbestos has tiny asbestos fibers. When asbestos fibers are in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/02C04B14/38C04B14/42C04B16/06C04B14/04
Inventor 李辉薛兴业李柯
Owner BEIJING AEROSPACE ZHONGFU ENTERPRISE MANAGEMENT
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