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Waterproof agent for building and preparation method thereof

A waterproofing agent and construction technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve problems such as no improvement and optimization

Inactive Publication Date: 2019-03-22
CHANGSHA XIAORU INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polyurethane waterproof coating formulation described in this patent has the disadvantage of not improving and optimizing the properties of building materials such as concrete or cement.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] The preparation method of described building waterproofing agent, comprises the following steps:

[0036] S1: Add polyurethane emulsion and silane emulsion into the stirred reactor, and stir well at 40°C and 800r / min;

[0037] S2: Add superfine silica powder to the mixing components described in step S1, then add light calcium carbonate, deionized water, acetylene glycol, simethicone, talcum powder, carboxymethyl cellulose, Polycarboxylate superplasticizer, stirred for 2 hours at a speed of 600r / min;

[0038]S3: After the mixed components described in step S2 are cooled down to room temperature, add dodecyl alcohol ester and stir for 10 minutes to prepare a waterproofing agent for construction.

[0039] Described silane emulsion, its preparation method comprises the following steps:

[0040] A1: Add emulsifier, polyethylene glycol, and deionized water into a stirred tank, raise the temperature to 40°C and stir at a constant speed for 1 hour;

[0041] A2: Cool down th...

Embodiment 1

[0049] A kind of waterproofing agent for building, in weight part, comprises following raw material: 18 parts of polyurethane emulsion, 5 parts of silane emulsion, 1 part of superfine silicon dioxide, 2 parts of light calcium carbonate, 0.8 part of dodecyl alcohol ester, 1 part of talc, 0.5 parts of simethicone, 1.4 parts of acetylene glycol, 2 parts of carboxymethyl cellulose with a degree of polymerization of 300, 0.4 parts of polycarboxylate superplasticizer, and 10 parts of deionized water;

[0050] Described silane emulsion, its preparation method comprises the following steps:

[0051] A1: Add emulsifier, polyethylene glycol, and deionized water into a stirred tank, raise the temperature to 40°C and stir at a constant speed for 1 hour;

[0052] A2: Cool down the mixture described in step A1 to 35°C, then slowly add isobutyltriethoxysilane monomer dropwise into the mixture described in step A1, and stir at a constant temperature for 2 hours at a speed of 500r / min , stand...

Embodiment 2

[0063] A kind of waterproofing agent for building, in weight part, comprises following raw material: 33 parts of polyurethane emulsions, 11 parts of silane emulsions, 4 parts of superfine silicon dioxide, 7 parts of light calcium carbonate, 1.2 parts of dodecyl alcohol esters, 3 parts of talcum powder, 1 part of simethicone, 1.8 parts of acetylene glycol, 3 parts of carboxymethyl cellulose with a degree of polymerization of 500, 0.7 parts of polycarboxylate superplasticizer, and 15 parts of deionized water;

[0064] Described silane emulsion, its preparation method comprises the following steps:

[0065] A1: Add emulsifier, polyethylene glycol, and deionized water into a stirred tank, raise the temperature to 40°C and stir at a constant speed for 1 hour;

[0066] A2: Cool down the mixture described in step A1 to 35°C, then slowly add isobutyltriethoxysilane monomer dropwise into the mixture described in step A1, and stir at a constant temperature for 2 hours at a speed of 500r...

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PUM

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Abstract

The invention discloses a waterproof agent for building and a preparation method thereof, and belongs to the technical field of preparation of building materials. The waterproof agent for building isprepared from the following raw materials: PU (Polyurethane) emulsion, silane emulsion, ultrafine silica, light calcium carbonate, talcum powder, dimethyl silicon oil, acetylenic diol, carboxymethyl cellulose, a polycarboxylate superplasticizer, n-dodecanol ester and deionized water. The waterproof agent for building is prepared through the steps of preparing the PU emulsion and the silane emulsion by utilizing a monomer, dispersing components, mixing and preparing, and the like. The waterproof agent for building, disclosed by the invention, is good in compatibility of all components, stable in components, good in film forming property and strong in water resistance and carbonization resistance, and the waterproof agent for building is a novel waterproof agent material for building.

Description

【Technical field】 [0001] The invention belongs to the technical field of paint preparation, and in particular relates to a waterproofing agent for construction and a preparation method thereof. 【Background technique】 [0002] With the continuous rapid development of the economy, the related technologies of the construction industry are also constantly developing and improving. There are two ways for concrete to produce water seepage: one is that when there is hydrostatic pressure on the two sides of the concrete, water can pass through some cracks or pores; the other is that due to capillary action, water is absorbed until there is no saturation. Water vapor evaporates from the surface. Concrete waterproofing agent is to reduce the above two effects in different ways, thereby improving the waterproof and anti-seepage ability. As a waterproof material, building waterproofing agent can effectively protect the surface of buildings from being eroded by water or other substances...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D183/04C09D7/61C09D7/65
CPCC08K2003/265C09D175/08C09D7/61C09D7/65C08L83/04C08L1/286C08K3/36C08K3/26C08K3/34
Inventor 不公告发明人
Owner CHANGSHA XIAORU INFORMATION TECH CO LTD