Gypsum-based internal heat insulation material

A thermal insulation material and gypsum-based technology, applied in the field of building thermal insulation materials, can solve problems such as unmanned use, and achieve the effects of reducing energy consumption, saving energy and reducing pollution

Active Publication Date: 2012-06-20
安徽省恒泰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, there are common reports on the development of various thermal insulation products, but they mainly focus on the development of cement as the base material. No one has used the waste desulfurization gypsum from coal-fired power plants in my country as the main cementitious material for internal insulation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In the present embodiment, the raw materials of the gypsum-based inner insulation material are composed of:

[0022] 87 parts of desulfurized gypsum powder, 9 parts of vitrified microbeads, 4 parts of polyphenylene particles, 0.3 parts of hydroxypropyl methylcellulose, 0.35 parts of SC gypsum retarder, potassium sulfate and aluminum sulfate (mass ratio: 3:2) 0.33 parts.

[0023] 3min, final setting time ≤ 30min, 2-hour flexural strength greater than 2.0KPa, compressive strength greater than or equal to 4.0KPa.

[0024] When the gypsum-based inner heat preservation material of the present invention is used, the water and the gypsum-based inner heat preservation material are mixed and stirred evenly according to the water-cement ratio of 0.6-0.70:1.

[0025] The gypsum-based inner thermal insulation material of the present invention has a setting time of 60 minutes, moderate setting time; setting strength ≥ 0.2mp, high strength; thermal conductivity ≤ 0.06W / (m·k), good t...

Embodiment 2

[0027] In the present embodiment, the raw materials of the gypsum-based inner insulation material are composed of:

[0028] 85 parts of desulfurized gypsum powder, 10 parts of vitrified microbeads, 5 parts of polyphenylene particles, 0.25 parts of hydroxypropyl methylcellulose, 0.5 parts of SC gypsum retarder, potassium sulfate and aluminum sulfate (mass ratio: 3:2) 0.25 servings.

[0029] Among them, desulfurized gypsum powder is obtained from thermal power plant waste after calcination at a low temperature of 105-110 ℃, the initial setting time is ≥3min, the final setting time is ≤30min, the 2-hour flexural strength is greater than 2.0MPa, and the compressive strength is greater than or equal to 4.0MPa .

[0030] When the gypsum-based inner heat preservation material of the present invention is used, the water and the gypsum-based inner heat preservation material are mixed and stirred evenly according to the water-cement ratio of 0.6-0.70:1.

[0031] The gypsum-based inner...

Embodiment 3

[0033] In the present embodiment, the raw materials of the gypsum-based inner insulation material are composed of:

[0034] 90 parts of desulfurized gypsum powder, 5 parts of vitrified microbeads, 5 parts of polyphenylene particles, 0.3 parts of hydroxypropyl methylcellulose, 0.2 parts of SC gypsum retarder, potassium sulfate and aluminum sulfate (mass ratio: 3:2) 0.5 servings.

[0035] Among them, desulfurized gypsum powder is obtained from thermal power plant waste after calcination at a low temperature of 105-110 ℃, the initial setting time is ≥3min, the final setting time is ≤30min, the 2-hour flexural strength is greater than 2.0MPa, and the compressive strength is greater than or equal to 4.0MPa .

[0036] When the gypsum-based inner heat preservation material of the present invention is used, the water and the gypsum-based inner heat preservation material are mixed and stirred evenly according to the water-cement ratio of 0.6-0.70:1.

[0037] The gypsum-based internal...

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Abstract

The invention discloses a gypsum-based internal heat insulation material, which comprises, by weight, 80-90 parts of desulfurized gypsum powder, 6-10 parts of vitrified small balls, 4-6 parts of polyphenyl particles, 0.2-0.5 part of water-retaining agent, 0.1-0.4 part of retarder and 0.2-0.5 part of exciting agent. The gypsum-based internal heat insulation material has the advantages of high hardening strength, high water resistance and proper setting time, and requires no grinding but mixing. The gypsum-based internal heat insulation material is energy-saving, pollution-reducing and low in additive usage, so that production cost can be reduced.

Description

1. Technical field [0001] The invention relates to a building thermal insulation material, in particular to a gypsum-based internal thermal insulation material. 2. Background technology [0002] In recent years, there are common reports on the development of various insulation products, but they mainly focus on the development of cement as the base material. No one has used the waste desulfurization gypsum from coal-fired power plants in my country as the main cementitious material for internal insulation. Since cement-based internal insulation materials mainly use cement as the main cementitious material, and cement is a high-energy-consuming product that causes serious environmental pollution. The country is now vigorously promoting new building materials with low energy consumption and low pollution, and gypsum internal insulation materials are energy-saving and environmentally friendly. Products should be vigorously promoted. 3. Contents of the invention [0003] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14B09B3/00
Inventor 李祥飞余洪玲张青莉黄河王浩钱叶继刘少林
Owner 安徽省恒泰新材料有限公司
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