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Waterproof plastering gypsum and preparation method thereof

A technology for plastering plaster and waterproof type, which is applied in the fields of plastering materials, waterproof plastering plaster and its preparation, can solve the problems of easy mold and shedding, poor water resistance, etc., and achieves the effects of good waterproof effect, improved waterproof performance, and prevention of moisture invasion.

Inactive Publication Date: 2017-11-24
湖北萨利赫新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a waterproof plaster plaster and its preparation method, which solves the problems that the current plaster plaster has poor water resistance and is easy to mold and fall off due to moisture.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A waterproof plaster plaster, wherein, the plaster plaster comprises the following components in percentage by weight: 50 kg of desulfurized gypsum, 20 kg of river sand (fineness modulus of 1.6), 1 kg of natural stone powder, 0.3 kg of retarder, Base cellulose 0.2kg, dispersible latex powder 0.1kg, waterproof adhesive composition formula is natural resin glue, polyvinyl alcohol and starch ether mass ratio is 20:1:2, waterproof adhesive dosage is 0.05kg.

[0020] Wherein, the retarder is selected from sodium tripolyphosphate, and the cellulose ether is selected from methyl cellulose.

[0021] Mix natural stone powder, cellulose ether, dispersible latex powder, retarder, and waterproof adhesive according to the above-mentioned quality to prepare a gypsum powder additive; calcinate the desulfurized gypsum at a constant temperature of 250°C for 3 hours; , quartz sand and the gypsum powder additives obtained in the steps are mixed in proportion to obtain waterproof plaster p...

Embodiment 2

[0024] A waterproof plaster plaster, wherein, the plaster plaster comprises the following components in percentage by weight: desulfurized gypsum 60kg, quartz sand (fineness modulus 2.2) 15kg, natural stone powder 2kg, retarder 0.4kg, hydroxyl Propyl methyl cellulose 0.3kg, dispersible latex powder 0.2kg, waterproof adhesive composition formula is natural resin glue, polyvinyl alcohol and starch ether mass ratio is 10:5:0.5, waterproof adhesive dosage is 0.2 kg.

[0025] Wherein, the retarder is selected from sodium citrate, and the cellulose ether is selected from hydroxypropyl methylcellulose.

[0026] Mix natural stone powder, cellulose ether, dispersible latex powder, retarder, and waterproof adhesive according to the above-mentioned quality to prepare a gypsum powder additive; calcinate the desulfurized gypsum at a constant temperature of 250°C for 3 hours; , quartz sand and the gypsum powder additive obtained in the steps are mixed in proportion to obtain a waterproof p...

Embodiment 3

[0029] A waterproof plaster plaster, wherein, the plaster plaster comprises the following components in percentage by weight: desulfurized gypsum 55kg, quartz sand 30kg, natural stone powder 3kg, retarder 0.35kg, hydroxypropyl methylcellulose 0.5kg , Dispersible latex powder 0.15kg, waterproof adhesive composition formula is natural resin glue, polyvinyl alcohol and starch ether mass ratio is 5:2:0.5, waterproof adhesive dosage is 0.3kg.

[0030] Mix natural stone powder, cellulose ether, dispersible latex powder, retarder, and waterproof adhesive according to the above-mentioned quality to obtain a gypsum powder additive; calcinate the desulfurized gypsum at a constant temperature of 300°C for 2 hours; calcined desulfurized gypsum , quartz sand and the gypsum powder additive obtained in the steps are mixed in proportion to obtain a waterproof plaster plaster, and when used, 40% water is added thereto and stirred.

[0031] The waterproof plaster plaster obtained in the inventi...

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Abstract

The invention relates to waterproof plastering gypsum and a preparation method thereof. The waterproof plastering gypsum is prepared from components in parts by weight as follows: 50-60 parts of desulfurized gypsum, 5-20 parts of quartz sand, 1-3 parts of natural stone powder, 0.3-0.4 parts of a retarding admixture, 0.2-0.5 parts of cellulose ether, 0.1-0.2 parts of dispersible latex powder and 0.05-0.3 parts of a waterproof binding agent. The waterproof plastering gypsum has the beneficial effects as follows: the prepared waterproof plastering gypsum is low in cost and good in waterproof effect, the waterproof rate reaches 90% or higher, shear adhesive strength of the waterproof plastering gypsum is 0.3 Mpa or higher, breaking strength is 15 Mpa or higher, and initial setting time and final setting time are short.

Description

technical field [0001] The invention relates to a plastering material, relates to a waterproof plastering gypsum and a preparation method thereof, and belongs to the technical field of chemical building materials. Background technique [0002] As one of the three traditional inorganic cementitious materials, gypsum has a wide range of applications. At present, as a green and environmentally friendly building material, it is becoming more and more popular in plastering wall materials. During the hydration process, a large number of voids will be formed to provide opportunities for water invasion. Excessive water absorption of plaster plaster will cause it to mold and fall off, thus limiting the application range of plaster plaster, and it is difficult to be applied in the humid environment in the south. Waterproof plaster plaster came into being. . Patent Publication No. CN105130359A adopts the addition of fly ash to reduce the water consumption of slurry, increase the fluid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B111/27
CPCC04B28/144C04B2111/27C04B2201/50C04B14/06C04B14/02C04B2103/22C04B24/383C04B2103/0057C04B2103/44C04B2103/65
Inventor 刘江涛葛洪彬杨昌炎
Owner 湖北萨利赫新材料有限公司
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