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Inorganic thermal insulation coating and preparation process thereof

An inorganic thermal insulation and coating technology, applied in the coating and other directions, can solve the problems of low thermal conductivity, insufficient thermal insulation effect of thermal insulation coatings, and reduction, and achieve the effects of simple preparation process, reduced low thermal conductivity, and reduced thermal conductivity.

Active Publication Date: 2020-07-03
河南宣和钧釉环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an inorganic thermal insulation coating, which solves the problem of insufficient thermal insulation effect of the thermal insulation coating in the prior art. By adopting honeycomb-shaped inorganic materials and increasing the void ratio, heat conduction is prevented, so that the coating The low thermal conductivity is greatly reduced, and the use of inorganic materials has better environmental protection, and the preparation process of the thermal insulation coating is simple, and by controlling the order of adding each component, each component in the thermal insulation coating can form a layer-by-layer package. The space structure can effectively block the transfer of heat, so that the prepared coating has better thermal insulation performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The inorganic thermal insulation coating of the present embodiment is made up of the following components by weight percentage:

[0052] Calcium silicate 15%

[0053] Glass beads 6%

[0054] Silica Airgel 4%

[0055] Mica powder 24%

[0056] Silica sol 25%

[0057] Acrylic resin 5%

[0058] Dispersant 0.75%

[0059] Cellulose 0.25%

[0060] Deionized water 20%

[0061] The preparation process of the inorganic thermal insulation coating of the present embodiment is as follows:

[0062] (1) Weigh the cellulose and 2 / 3 deionized water according to the weight ratio, put the cellulose into the deionized water, stir and disperse at 450rpm for 20min, then add the dispersant to obtain the mixture A;

[0063] (2) Add 3 / 5 airgel to mixture A in step (1), stir and disperse at 750 rpm for 15 minutes to obtain mixture B;

[0064](3) Add the remaining 1 / 3 deionized water, 2 / 5 airgel and glass microspheres to the mixture B in step (2), and disperse for 18 minutes at a rotatio...

Embodiment 2

[0070] The inorganic thermal insulation material of the present embodiment is made up of the following components by weight percentage:

[0071] Calcium silicate 13%

[0072] Glass beads 6%

[0073] Silica Airgel 5%

[0074] Mica powder 26%

[0075] Silica sol 21%

[0076] Acrylic resin 4.8%

[0077] Dispersant 0.85%

[0078] Cellulose 0.35%

[0079] Deionized water 23%

[0080] The preparation process of the inorganic thermal insulation coating of the present embodiment is as follows:

[0081] (1) Weigh the cellulose and 2 / 3 deionized water according to the weight ratio, put the cellulose into the deionized water, stir and disperse at 400rpm for 25min, then add the dispersant to obtain the mixture A;

[0082] (2) Add 3 / 5 airgel to mixture A in step (1), stir and disperse at 700 rpm for 18 minutes to obtain mixture B;

[0083] (3) Add the remaining 1 / 3 deionized water, 2 / 5 airgel and glass microspheres to the mixture B in step (2), and disperse for 20 minutes at a spe...

Embodiment 3

[0089] The inorganic thermal insulation coating of the present embodiment is made up of the following components by weight percentage:

[0090] Calcium silicate 16%

[0091] Glass beads 5%

[0092] Silica Airgel 3.5%

[0093] Mica powder 24%

[0094] Silica sol 23%

[0095] Acrylic resin 4.5%

[0096] Dispersant 0.65%

[0097] Cellulose 0.35%

[0098] Deionized water 23%

[0099] The preparation process of the inorganic thermal insulation coating of the present embodiment is as follows:

[0100] (1) Weigh the cellulose and 2 / 3 deionized water according to the weight ratio, put the cellulose into the deionized water, stir and disperse at 500rpm for 15min, then add the dispersant to obtain the mixture A;

[0101] (2) Add 3 / 5 airgel to mixture A in step (1), stir and disperse at 800 rpm for 12 minutes to obtain mixture B;

[0102] (3) Add the remaining 1 / 3 deionized water, 2 / 5 airgel and glass microspheres to the mixture B in step (2), and disperse for 15 minutes at a ro...

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PUM

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Abstract

The invention relates to the technical field of thermal insulation coatings. The invention particularly relates to an inorganic thermal insulation coating and a preparation process thereof. The composition comprises the following components in percentage by weight: 12%-18% of calcium silicate, 4%-8% of glass beads, 2.5%-5.5% of silica aerogel, 20%-28% of mica powder, 21%-29% of silica sol, 3%-6% of an acrylic resin, 0.55%-1.00% of a dispersing agent, 0.10%-0.45% of cellulose and 15%-25% of deionized water. According to the invention, a honeycomb inorganic material is adopted, by improving porosity and preventing thermal conduction, the low heat conductivity coefficient of the coating is greatly reduced, the inorganic material is used, the environmental protection property is good, the preparation process of the thermal insulation coating material is simple, and the adding sequence of the components is controlled, such that the components in the thermal insulation coating material can form the layer-by-layer wrapped space structure so as to effectively block the heat transfer, such that the prepared coating material has good thermal insulation property.

Description

technical field [0001] The invention relates to the technical field of thermal insulation coatings, in particular to an inorganic thermal insulation coating and a preparation process thereof. Background technique [0002] With the improvement of people's awareness of environmental protection, how to solve the heat preservation inside and outside of buildings and reduce energy consumption is an urgent problem to be solved. However, the existing materials generally adopt thick paste type, which not only has high construction cost, but also has low material utilization rate and unsatisfactory thermal insulation effect. The use of thermal insulation coatings on the building surface can effectively reduce the temperature of the building surface and interior, and alleviate the temperature change of the building surface. It not only has a good protective effect on the building, but also greatly reduces the use of air conditioners in the building. Saving energy is of great signific...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/61C09D7/65
CPCC09D1/00C09D7/61C09D7/65C09D7/70
Inventor 海书杰刘亚楠
Owner 河南宣和钧釉环保材料有限公司