Inner wall desulfurization gypsum putty

A technology for desulfurizing gypsum and putty, which is applied in the direction of filling slurry, etc., can solve the problems of general purification effect and high cost, and achieve the effect of convenient local trimming, high flatness, and not easy to hollow out.

Inactive Publication Date: 2019-10-08
中山爱因新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can absorb and decompose harmful gases such as formaldehyde, benzene, ammonia, and nitrogen in the room, thereby purifying the air and maintain

Method used

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  • Inner wall desulfurization gypsum putty
  • Inner wall desulfurization gypsum putty
  • Inner wall desulfurization gypsum putty

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The interior wall desulfurization gypsum putty of the present embodiment comprises by weight percentage:

[0031] Desulfurization gypsum 25%, fly ash 15%, ash calcium powder 8%, heavy calcium carbonate 32%, bentonite 10%, talcum powder 7.5%, starch ether 0.1%, magnesium aluminum silicate 0.5%, redispersible latex powder 1.5%, methyl cellulose ether 0.4%;

[0032] Among them, desulfurization gypsum and fly ash are the industrial waste residues with large displacement in my country. They have low thermal conductivity and have thermal insulation properties, while the particles of fly ash are porous honeycomb structure with high specific surface area and high specific surface area. Adsorption activity and water absorption;

[0033] Bentonite is sodium-based bentonite with a particle size of 180-325 mesh and a montmorillonite content of ≥80%. It has strong hygroscopicity and expansibility, and can absorb 8 to 15 times its own volume of water, and its volume expansion can rea...

Embodiment 2

[0040] The interior wall desulfurization gypsum putty of the present embodiment comprises by weight percentage:

[0041] Desulfurization gypsum 25%, fly ash 10%, ash calcium powder 5%, heavy calcium carbonate 35%, bentonite 12%, talcum powder 10%, starch ether 0.1%, magnesium aluminum silicate 0.4%, redispersible latex powder 2%, methyl cellulose ether 0.5%;

[0042] Wherein, the particle size of ash calcium powder is 400 mesh; The particle size of ground calcium carbonate is 400 mesh; The particle size of talcum powder is 325 mesh; Redispersible latex powder is acrylate and vinyl acetate 1:1 (weight ratio) mixture, The glass transition temperature is -13°C; the viscosity of methyl cellulose ether is 300cps; the rest of the component materials are the same as in Example 1.

[0043] The preparation method is the same as in Example 1. Do the same project detection with embodiment 1, and the results are shown in Table 1.

Embodiment 3

[0045] The interior wall desulfurization gypsum putty of the present embodiment comprises by weight percentage:

[0046] Desulfurization gypsum 20%, fly ash 20%, ash calcium powder 10%, heavy calcium carbonate 32%, bentonite 8%, talcum powder 6.5%, starch ether 0.1%, magnesium aluminum silicate 0.4%, redispersible latex powder 2.5%, methyl cellulose ether 0.5%;

[0047] Among them, the redispersible latex powder is acrylate, and the glass transition temperature is -14° C.; the viscosity of methyl cellulose ether is 300 cps; the other component materials are the same as in Example 1.

[0048] The preparation method is the same as in Example 1. Do the same project detection with embodiment 1, and the results are shown in Table 1.

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Abstract

The invention belongs to the field of building materials, and discloses an inner wall desulfurization gypsum putty. The inner wall desulfurization gypsum putty is prepared from the components in percentage by weight: 20-30 % of flue gas desulfurization gypsum, 10-20 % of coal ash, 5-10 % of ash calcium powder, 30-40 % of ground calcium carbonate, 8-12 % of bentonite, 5-10 % of talc, 0.5-3 % of re-dispersible latex powder and 0.3-0.5% of methyl cellulose ether. According to the inner wall desulfurization gypsum putty, industrial waste and local materials are used as main raw materials, for example, the flue gas desulfurization gypsum, the coal ash, the bentonite and the like are used, the cost of putty can be lowered, the performance of the putty is excellent, the drying time is short, theconstruction time can be shortened, a certain heat preservation and insulation performance is achieved, the humidity can be adjusted, air is purified, the comfort degree of indoor living is improved,green energy saving is achieved, and the inner wall desulfurization gypsum puttyaccords with the application requirement in modern building engineering.

Description

technical field [0001] The invention relates to the field of building materials and the technical field of building construction, in particular to a desulfurized gypsum putty for interior walls. Background technique [0002] Putty is a decorative material for leveling the surface of the wall. It is a thick paste paint and an indispensable product before the paint is painted. The traditional gypsum putty is easy to powder and fall off during use, and its surface strength and bonding strength are very low, which seriously affects the quality of the putty. [0003] Chinese patent CN101891980A discloses an interior wall putty powder based on desulfurized gypsum, which is composed of desulfurized gypsum, slag powder, Portland cement, talcum powder, lime, sodium bentonite, methyl cellulose ether, and hydroxypropyl starch ether. And sodium fluorosilicate composition. The putty powder is directly mixed with water for construction, easy to scrape and wear, and resistant to grinding...

Claims

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Application Information

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IPC IPC(8): C09D5/34
CPCC09D5/34
Inventor 黎昌鑫关建光祝显炜吴辉张明祥
Owner 中山爱因新材料有限公司
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