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Non-combustible energy-saving heat-preserving board and preparation method thereof

A thermal insulation board, weight percentage technology, applied in the field of building materials, can solve the problems of limiting the use range of thermal insulation materials, high density of thermal insulation materials, poor thermal insulation performance, etc., to achieve the effect of enhancing energy-saving thermal insulation effect, high strength, and improving energy-saving effect

Inactive Publication Date: 2012-07-11
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, analyzing the research results of predecessors, combined with the technical means adopted, it can be concluded that the thermal insulation materials prepared therefrom have the problems of high density, poor thermal insulation performance, and poor mechanical properties, which greatly limits the use of such thermal insulation materials. scope

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] According to the weight percentage of each component, it is 10% of sulfoaluminate cement, 50% of ordinary Portland cement, 0.1% of carboxypropyl cellulose, 3% of sodium lauryl sulfate, 0.1% of ammonium bicarbonate, and 2% of emulsified paraffin , 28% metakaolin, 6.8% vitrified microbeads, select raw materials, among which sulphoaluminate cement and ordinary Portland cement are commercially available grade 42.5, grind them in a ball mill until the maximum particle size does not exceed 18um, More than 80% of the particle size is below 5um, the particle size of the vitrified microbeads is 30-70 mesh, the water absorption rate is less than 50%, and the metakaolin particle size is 500 mesh, and it is ready for use;

[0030] Mix sulfoaluminate cement, ordinary Portland cement, carboxypropyl cellulose, sodium lauryl sulfate, ammonium bicarbonate, emulsified paraffin, metakaolin with water to obtain a fluidity of 80-150 and a large amount of Slurry with uniform air bubbles;

...

Embodiment 2

[0035] According to the weight percentage of each component, it is 20% sulfoaluminate cement, 60% ordinary Portland cement, 0.8% carboxymethyl cellulose, 4.2% fatty alcohol polyoxyethylene ether sodium sulfate, 1% ammonium bicarbonate, emulsified 4% paraffin, 10% vitrified microbeads, select raw materials, among which sulphoaluminate cement and ordinary Portland cement are both commercially available grade 42.5, grind them in a ball mill until the maximum particle size does not exceed 18um, 80% The size of the above particles is below 5um, the particle size of vitrified microbeads is 30-70 mesh, and the water absorption rate is less than 50%, which is ready for use;

[0036] Mix sulfoaluminate cement, ordinary Portland cement, carboxymethyl cellulose, fatty alcohol polyoxyethylene ether sodium sulfate, ammonium bicarbonate, emulsified paraffin and water to obtain a fluidity of 80-150, with a large amount of uniform Air bubble slurry;

[0037] Then add vitrified microbeads, co...

Embodiment 3

[0041] According to the weight percentage of each component, it is 23% of sulfoaluminate cement, 50% of ordinary portland cement, 0.1% of hydroxymethyl cellulose, 0.1% of sodium lauryl sulfate, hydrogen peroxide with an effective content of 0.5%, and emulsified paraffin wax of 0.1% %, silica fume 26.2%, select raw materials, among which sulphoaluminate cement and ordinary Portland cement are both commercially available grade 42.5, and they are ground in a ball mill until the maximum particle size does not exceed 18um, and more than 80% of the particle size is in the Below 5um, the silica fume particle size is 800 mesh, ready for use,

[0042] Mix sulfoaluminate cement, ordinary Portland cement, hydroxymethyl cellulose, sodium lauryl sulfate, hydrogen peroxide, emulsified paraffin, silica fume with water and mix evenly to obtain a fluidity of 80 and a large number of uniform bubbles. slurry;

[0043] Casting in a mold of a set size, initial curing to final setting;

[0044] Ste...

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Abstract

The invention belongs to building materials and relates to a non-combustible energy-saving heat-preserving board and a preparation method thereof. The invention is characterized in that: the non-combustible energy-saving heat-preserving board consists of the following components in percentage by weight: 50 to 80 percent of cement, 0.1 to 1 percent of tackifier, 0.1 to 5 percent of organic foaming agent, 0.1 to 1 percent of inorganic foaming agent, 0.1 to 5 percent of water repellent, 0 to 28 percent of mineral mixture and 0 to 10 percent of vitrified microbubbles; the weight percentage sum of all the components is 100 percent; and the preparation method comprises the steps of adding water into the components, stirring to obtain slurry, performing casting molding and maintaining. A multiple-order gas generation technology for generating gas for two times by using a surfactant foaming agent and an inorganic foaming agent is adopted, so the air hole content can be increased, the shape of air holes generated by foaming of the organic foaming agent is modified, the air hole wall is reinforced, the energy-saving and heat-preserving effect is enhanced, and the non-combustible energy-saving heat-preserving board has low density and high heat-preserving performance.

Description

technical field [0001] The invention belongs to building materials, and relates to a non-combustible energy-saving heat preservation board and a preparation method thereof. Background technique [0002] Wall energy-saving technology is an important part of building energy-saving technology. As the core of wall energy-saving technology, wall insulation materials need to have energy-saving, safe, durable and other properties. However, most of the high-efficiency energy-saving insulation materials currently used are flammable organic materials, such as: extruded polystyrene board (XPS) Or expanded polystyrene board (EPS), etc., although it has the advantages of low thermal conductivity and low density, its own flammability will cause a great safety hazard. In recent years, the fires in "CCTV Building", "Shanghai Teacher's Apartment" and "Shenyang Wanxin Hotel" caused by the burning of insulation layers in Beijing, Shanghai, Shenyang and other places have fully exposed the fire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/00
Inventor 蹇守卫马保国苏雷赵志广刘敏孔维
Owner WUHAN UNIV OF TECH
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