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Light overlay gypsum building material and preparation method thereof

A gypsum and light-weight technology, which is applied in the field of light-weight overlay gypsum building materials and its preparation, can solve the problems of high volume density of putty materials, high cost of putty raw materials, uneven color of batch scraping, etc., and achieve low cost and good protection , the effect of not easy to fall off

Inactive Publication Date: 2021-08-06
首建新材料(山东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Putty is a common method for interior wall decoration, and it is widely used. However, the cost of putty raw materials is relatively high, and the color of batch scraping is prone to unevenness. The volume density of the putty material is relatively high, and its strength is low. It is prone to cracking after long-term use Case of shedding

Method used

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  • Light overlay gypsum building material and preparation method thereof

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Embodiment 1

[0020] A lightweight overlay gypsum building material, comprising the following raw materials in parts by weight: 900 parts of gypsum, 60 parts of perlite, 4 parts of lime calcium, 1.5 parts of hydroxypropyl methylcellulose, 0.4 part of special lubricant for gypsum, retarding dose 0.1 part.

[0021] Wherein, the special lubricant for gypsum is pentaerythritol.

[0022] Wherein, the retarder is a mixture of layered crystalline sodium disilicate and sodium fluorosilicate.

[0023] Wherein, the ratio of the mixture of layered crystalline sodium disilicate and sodium fluorosilicate in the retarder is 1:1.

[0024] The preparation method of the above-mentioned lightweight overlay gypsum building material, the steps are as follows:

[0025] 1) First mix hydroxypropyl methylcellulose, special lubricant for gypsum, and setting retarder to obtain mixed additives;

[0026] 2) After pulverizing the gypsum, perlite, lime calcium and the mixed additive obtained in step 1), mix evenly to...

Embodiment 2

[0030] A lightweight overlay gypsum building material, comprising the following raw materials in parts by weight: 950 parts of gypsum, 65 parts of perlite, 4.5 parts of lime calcium, 1.8 parts of hydroxypropyl methylcellulose, 0.5 parts of special lubricant for gypsum, retarded 0.7 part of the agent.

[0031] Wherein, the special lubricant for gypsum is a mixture of pentaerythritol and magnesium lauryl sulfate.

[0032] Wherein, the retarder is a mixture of layered crystalline sodium disilicate and sodium fluorosilicate.

[0033] Wherein, the ratio of the mixture of layered crystalline sodium disilicate and sodium fluorosilicate in the retarder is 2:1.

[0034] The preparation method of the above-mentioned lightweight overlay gypsum building material, the steps are as follows:

[0035] 1) First mix hydroxypropyl methylcellulose, special lubricant for gypsum, and setting retarder to obtain mixed additives;

[0036] 2) After pulverizing the gypsum, perlite, lime calcium and t...

Embodiment 3

[0039] A lightweight overlay gypsum building material, comprising the following raw materials in parts by weight: 1,000 parts of gypsum, 70 parts of perlite, 5 parts of lime calcium, 1.7 parts of hydroxypropyl methylcellulose, 0.5 parts of special lubricant for gypsum, retarded 0.4 parts of the agent.

[0040] Wherein, the special lubricant for gypsum is pentaerythritol.

[0041] Wherein, the retarder is a mixture of layered crystalline sodium disilicate and sodium fluorosilicate.

[0042] Wherein, the ratio of the mixture of layered crystalline sodium disilicate and sodium fluorosilicate in the retarder is 2:1.

[0043] The preparation method of the above-mentioned lightweight overlay gypsum building material, the steps are as follows:

[0044] 1) First mix hydroxypropyl methylcellulose, special lubricant for gypsum, and setting retarder to obtain mixed additives;

[0045] 2) After pulverizing the gypsum, perlite, lime calcium and the mixed additive obtained in step 1), mi...

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Abstract

The invention discloses a light overlay gypsum building material, which relates to the technical field of building materials, and comprises the following raw materials by weight: 900-1100 parts of gypsum, 60-80 parts of perlite, 4-6 parts of ash calcium, 1.5-2 parts of hydroxypropyl methyl cellulose, 0.4-0.6 part of a special lubricant for gypsum, and 0.1-2 parts of a retarder. The invention further discloses a preparation method of the light overlay gypsum building material. The light overlay gypsum replaces putty powder, the cost of raw materials is lower, the scraping color is more uniform, the volume density of the light overlay gypsum is relatively low, the strength is higher, the wall surface can be better protected, the falling condition is not prone to occurring, and the effect is better.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a lightweight overlay gypsum building material and a preparation method thereof. Background technique [0002] Scraping putty is to scrape putty on the wall to ensure that the wall is smooth, and sand it with sandpaper after drying. Putty is the most important step in the treatment of the base to remove the uneven part of the surface of the base and keep the wall smooth by filling or overall treatment. Putty (filling mud) is a kind of decorative coagulation material for leveling the surface of the wall. It is a thick paste paint and an indispensable product before the paint is painted. Putty is applied on the primer or directly on the object to remove uneven defects on the surface of the object to be coated. It can fill the partially sunken working surface or scrape off the entire surface, usually on the primer After the layer is dry, apply to the surface of the prim...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B111/40
CPCC04B28/14C04B2111/40
Inventor 姚勇胜陈涛于凯
Owner 首建新材料(山东)有限公司
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