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Concrete base interface agent for preventing plastering gypsum mortar layer from bubbling and preparation method of concrete base interface agent

A technology of concrete base and plastering gypsum, applied in the direction of coating, etc., can solve the problems of interface agent construction performance decline and other problems

Pending Publication Date: 2022-03-11
TAISHAN GYPSUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of engineering construction, the interface agent is required to have good leveling properties, and at the same time have high anti-sag and anti-splash properties, so that the interface agent coating has high construction performance; especially when the interface agent is diluted with water After that, due to the change of consistency, the construction performance of the interface agent is greatly reduced

Method used

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  • Concrete base interface agent for preventing plastering gypsum mortar layer from bubbling and preparation method of concrete base interface agent
  • Concrete base interface agent for preventing plastering gypsum mortar layer from bubbling and preparation method of concrete base interface agent
  • Concrete base interface agent for preventing plastering gypsum mortar layer from bubbling and preparation method of concrete base interface agent

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preparation example Construction

[0085] The present invention also provides a kind of preparation method of the concrete base interface agent that prevents plastering gypsum mortar layer from foaming, comprising the following steps:

[0086] A) stirring and mixing the polymer emulsion, the protective colloid solution, the nano anti-alkali back cover emulsion and deionized water to obtain the mixed solution A;

[0087] B) under stirring conditions, add film-forming aids, antiseptics, freeze-thaw stabilizers, wetting agents, defoamers, dispersants and colorants to mixed solution A to obtain mixed solution B;

[0088] C) Adding a thickener and a pH regulator into the mixed solution B under stirring conditions to obtain a concrete base layer interface agent for preventing foaming of the plastered gypsum mortar layer.

[0089] In the present invention, the protective colloid is preferably dissolved in deionized water to prepare a protective colloid solution, and then the protective colloid solution is used for sub...

Embodiment 1

[0098] A base-layer interface agent for preventing foaming of the plastered gypsum mortar layer and includes the following components calculated by weight: 20 parts of vinyl acetate-ethylene copolymer emulsion, 10 parts of nano-bottom seal emulsion, 2 parts of PVA1788 polyvinyl alcohol, antiseptic and bactericide 0.5 parts, 0.6 parts of film-forming aid, 0.8 parts of thickener ASE-60, 0.3 parts of PH regulator, 0.8 parts of associative polyurethane thickener HY-304D, 0.3 parts of dispersant, 0.5 parts of freeze-thaw stabilizer, 0.2 parts of wetting agent, 0.5 parts of defoamer, 0.3 parts of colorant, 63.2 parts of deionized water.

[0099] The above-mentioned preparation method of the base-layer interface agent capable of preventing foaming of the plastered gypsum mortar layer comprises the following steps:

[0100] (1) First, 2 parts of polyvinyl alcohol 1788 were dissolved in 38 parts of deionized water to prepare a polyvinyl alcohol solution with a mass fraction of 5%.

[...

Embodiment 2

[0105] A base-layer interface agent for preventing foaming of a plastered gypsum mortar layer and includes the following components calculated by weight: 15 parts of elastic acrylate emulsion, 15 parts of nano-bottom cover emulsion, 2 parts of PVA2088 polyvinyl alcohol, 0.5 part of antiseptic and bactericide , 0.6 parts of film-forming aid, 0.4 parts of alkali-swellable associative thickener HY-303, 0.2 parts of pH regulator, 0.2 parts of hydroxyethyl cellulose, 0.3 parts of dispersant, 0.5 parts of freeze-thaw stabilizer, moistening 0.2 parts of wet agent, 0.5 parts of defoamer, 0.3 parts of coloring agent, 64.3 parts of deionized water.

[0106] The above-mentioned preparation method of the base-layer interface agent capable of preventing foaming of the plastered gypsum mortar layer comprises the following steps:

[0107] (1) First, 2 parts of polyvinyl alcohol 2088 were dissolved in 38 parts of deionized water to prepare a polyvinyl alcohol solution with a mass fraction of ...

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Abstract

The invention provides a concrete base interface agent for preventing a plastering gypsum mortar layer from foaming. The concrete base interface agent comprises the following raw materials in parts by weight: 5-60 parts of high-molecular polymerization emulsion; 1 to 15 parts of nanometer alkali-resistant bottom sealing emulsion; 0.5 to 10 parts of protective colloid; 0.01 to 1 part of an antiseptic bactericide; 0.1 to 5 parts of a coalescing agent; 0.1 to 5 parts of a thickening agent; 0.1 to 2 parts of a pH regulator; 0.1-1 part of a dispersant; 0.1-3 parts of a freeze thawing stabilizer; 0.1-3 parts of a wetting agent; 0.1 to 1 part of a defoaming agent; 0.1-1 part of a coloring agent; and 40 to 85 parts of deionized water. The thickening agent for improving the medium / low shear viscosity and the thickening agent for improving the high shear viscosity are compounded, so that the base-layer interface agent coating has excellent anti-sagging performance and anti-splashing performance, and still has good construction performance after being diluted with water. The invention further provides a preparation method of the concrete base interface agent for preventing the plastering gypsum mortar layer from bubbling.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a concrete base layer interface agent for preventing foaming of a plastered gypsum mortar layer and a preparation method thereof. Background technique [0002] The surface of the concrete shear wall looks dense and smooth, but there are a large number of micro-scale and nano-scale capillary pores in the actual microscopic internal structure. , the capillary pores absorb the moisture in the mortar layer, and at the same time displace the air in the capillary pores, resulting in a large amount of foaming in the plastered gypsum mortar layer. In order to obtain a smooth wall surface, plasterers on the construction site need to wait until the mortar layer has solidified before performing secondary rework, which seriously affects the construction efficiency and construction period. Therefore, the concrete base interface agent is needed to effectively block the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D131/04C09D133/04C09D201/00C09D7/44
CPCC09D131/04C09D133/04C09D201/00C09D7/44C08L101/00C08L75/04C08L1/284C08K3/34
Inventor 陈颜龙谢东刘福峰安延营李杨张合军郭超
Owner TAISHAN GYPSUM CO LTD
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