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High temperature resistance multilayer heat insulating composite material and manufacturing method thereof

A composite material, multi-layer thermal insulation technology, applied in the direction of thermal insulation protection of pipelines, thermal insulation, heat exchange equipment, etc. Good effect, guaranteed mechanical properties, good thermal insulation effect

Inactive Publication Date: 2011-06-29
武汉阜成科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this material still has disadvantages such as poor heat resistance stability and easy deformation when heated.
[0004] Dimensional stability at high temperature is a problem that most materials cannot solve well, and the influencing factors are complex and unpredictable

Method used

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  • High temperature resistance multilayer heat insulating composite material and manufacturing method thereof
  • High temperature resistance multilayer heat insulating composite material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A high-temperature-resistant multilayer heat-insulating composite material, the finished product of which includes the following components and parts by weight: 2 parts of quartz fiber mesh, 9 parts of ceramic high-temperature continuous fiber cloth, 5 parts of ceramic fiber paper, 68 parts of inorganic high-temperature refractory cement, SiO 2 6 parts of airgel, 6 parts of potassium hexatitanate whisker, 4 parts of flake mica or flake metal.

[0030] Specifically, the SiO2 airgel is selected from airgel particles with particle diameters less than 70 mesh.

[0031] A method for manufacturing a high-temperature-resistant multilayer heat-insulating composite material, the steps of which are as follows:

[0032] a), first screen SiO with suitable particle size 2 Airgel, pour an appropriate amount of acetone or absolute ethanol into it and stir well, SiO 2 The parts by weight of airgel and acetone or absolute ethanol are: SiO 2 6 parts of airgel, 100 parts of acetone or ...

Embodiment 2

[0039]A high-temperature-resistant multilayer heat-insulating composite material, the finished product of which includes the following components and parts by weight: 1.5 parts of quartz fiber net, 7 parts of ceramic high-temperature continuous fiber cloth, 4 parts of ceramic fiber paper, 55 parts of inorganic high-temperature refractory cement, SiO 2 Airgel 5 parts, potassium hexatitanate whisker 6 parts, flake mica or flake metal 3 parts.

[0040] Specifically, the SiO2 airgel is selected from airgel particles with particle diameters less than 70 mesh.

[0041] A method for manufacturing a high-temperature-resistant multilayer heat-insulating composite material, the steps of which are as follows:

[0042] a), first screen SiO with suitable particle size 2 Airgel, pour an appropriate amount of acetone or absolute ethanol into it and stir well, SiO 2 The parts by weight of airgel and acetone or absolute ethanol are: SiO 2 5 parts of airgel, 120 parts of acetone or absolute ...

Embodiment 3

[0049] A high-temperature-resistant multilayer heat-insulating composite material, the finished product of which includes the following components and parts by weight: 3 parts of quartz fiber mesh, 11 parts of ceramic high-temperature continuous fiber cloth, 7 parts of ceramic fiber paper, 80 parts of inorganic high-temperature refractory cement, SiO 2 7 parts of airgel, 7 parts of potassium hexatitanate whisker, 5 parts of flake mica or flake metal.

[0050] Specifically, the SiO2 airgel is selected from airgel particles with particle diameters less than 70 mesh.

[0051] A method for manufacturing a high-temperature-resistant multilayer heat-insulating composite material, the steps of which are as follows:

[0052] a), first screen SiO with suitable particle size 2 Airgel, pour an appropriate amount of acetone or absolute ethanol into it and stir well, SiO 2 The parts by weight of airgel and acetone or absolute ethanol are: SiO 2 7 parts of airgel, 92 parts of acetone or ...

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Abstract

The invention relates to the field of high temperature resistance and heat insulation, in particular to high temperature resistance multilayer heat insulating composite material and a manufacturing method thereof. The finished product comprises the following components according to parts by weight: 1 to 3 parts of quartz fibre meshes, 7 to 12 parts of ceramic high-temperature continuous fibre cloth, 3 to 7 parts of ceramic fibre paper, 55 to 80 parts of inorganic high- temperature refractory mortar, 5 to 7 parts of SiO2 aerogel, 5 to 7 pars of potassium titanate whiskers and 3 to 5 parts of flaky mica or flaky metal. The density of the high temperature resistance multilayer heat insulating composite material finished product prepared through the manufacturing method is very low, and the adhesive effect is good. The method has the advantages that the method is simple and easy to be operated, the heat insulation effect of the product is good, the strength can meet the operating requirement, and the method has wide application prospect.

Description

technical field [0001] The invention relates to the field of high temperature resistance and heat insulation, in particular to a high temperature resistant multilayer heat insulation composite material and a manufacturing method thereof. technical background [0002] Traditional thermal insulation refractory materials improve thermal insulation performance by increasing the gas phase ratio and reducing the thermal conductivity at room temperature to be infinitely close to the thermal conductivity of air. When used at high temperatures, the heat exchange caused by convection is so small that it can be ignored, and conduction and radiation become The main heat exchange method, at this time, no matter how the gas phase ratio is increased, it is difficult to have an effective impact on the high temperature thermal conductivity. No matter what form of traditional thermal insulation refractory materials, the fatal problem is that its thermal conductivity increases with the increas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L59/02
Inventor 李柏松王宇光
Owner 武汉阜成科技股份有限公司
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