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Water-resistant gypsum emulsion

A technology of water resistance and gypsum, applied in the field of building materials, can solve the problems of high solubility and poor water resistance, and achieve the effect of simple composition, long-term water resistance, and saving raw materials

Pending Publication Date: 2021-06-25
许娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional gypsum has the defect of poor water resistance due to its high solubility and many cracks and pores inside.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of water-resistant gypsum emulsion of the present embodiment, raw material comprises the component of following parts by weight:

[0043] 80 parts of gypsum;

[0044] 20 parts of silica fume;

[0045] 16 parts of borax

[0046] 5 parts of aluminum oxide;

[0047] 4 parts activated carbon;

[0048] 20 parts of cement;

[0049] 28 parts of stearic acid emulsion;

[0050] 3 parts of hydroxypropyl methylcellulose;

[0051] 5 parts polyacrylamide.

[0052] The solid content of the stearic acid emulsion is 25%.

[0053] The molecular weight of the polyacrylamide is 8 million.

[0054] After pulverizing the above components, stir to make the mixture uniform, and obtain the water-resistant gypsum emulsion of this embodiment.

Embodiment 2

[0056] A kind of water-resistant gypsum emulsion of the present embodiment, raw material comprises the component of following parts by weight:

[0057] 70 parts of gypsum;

[0058] 15 parts of silica fume;

[0059] 12 parts borax

[0060] 4 parts of aluminum oxide;

[0061] 3 parts activated carbon;

[0062] 12 parts of cement;

[0063] 22 parts of stearic acid emulsion;

[0064] 2 parts of hydroxypropyl methylcellulose;

[0065] 3 parts polyacrylamide.

[0066] The solid content of the stearic acid emulsion is 20%.

[0067] The molecular weight of the polyacrylamide is 7 million.

[0068] After pulverizing the above components, stir to make the mixture uniform, and obtain the water-resistant gypsum emulsion of this embodiment.

Embodiment 3

[0070] A kind of water-resistant gypsum emulsion of the present embodiment, raw material comprises the component of following parts by weight:

[0071] 90 parts of gypsum;

[0072] 25 parts of silica fume;

[0073] Borax 18 parts

[0074] 6 parts of aluminum oxide;

[0075] 5 parts of activated carbon;

[0076] 24 parts of cement;

[0077] 32 parts of stearic acid emulsion;

[0078] 4 parts of hydroxypropyl methylcellulose;

[0079] 8 parts of polyacrylamide.

[0080] The solid content of the stearic acid emulsion is 30%.

[0081] The molecular weight of the polyacrylamide is 10 million.

[0082] After pulverizing the above components, stir to make the mixture uniform, and obtain the water-resistant gypsum emulsion of this embodiment.

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Abstract

The invention discloses a water-resistant gypsum emulsion. The water-resistant gypsum emulsion is prepared from the following raw materials in parts by weight: 60-100 parts of gypsum, 10-30 parts of silica fume, 10-20 parts of borax, 2-8 parts of aluminum oxide, 2-6 parts of activated carbon, 10-30 parts of cement, 20-40 parts of a stearic acid emulsion, 1-5 parts of hydroxypropyl methyl cellulose and 1-10 parts of polyacrylamide. The gypsum emulsion disclosed by the invention has stable and long-lasting water resistance, can be applied to the building industry, is simple in component and low in cost, and can effectively save raw materials and protect the environment.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a water-resistant gypsum emulsion. Background technique [0002] Gypsum is a widely used industrial material and construction material, which can be used in cement retarder, gypsum building products, model making, sulfuric acid production, paper filler, paint filler, etc. However, traditional gypsum has the disadvantage of poor water resistance due to its high solubility and many cracks and pores inside. [0003] With the rapid development of the construction industry, the speed of energy consumption and exhaustion is increasing. At the same time, due to the impact of global warming, smog and other environmental changes, the reduction of energy consumption of materials used in the construction industry and the increase of energy utilization have become the focus of this industry. . [0004] Gypsum applied to building materials usually requires high water ...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B111/27
CPCC04B28/14C04B2111/27C04B18/146C04B14/36C04B14/303C04B14/022C04B7/00C04B24/085C04B24/383C04B24/2652
Inventor 不公告发明人
Owner 许娟
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