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Water-based emulsion for protecting external wall of building and preparation method for water-based emulsion

A technology for building exterior walls and water-based emulsions, used in bridge maintenance, water-based emulsions, building waterproofing, and engineering protection. The effect of application performance

Active Publication Date: 2014-04-16
江苏吉邦材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of this material is cumbersome, requiring repeated pressurization and decompression operations, and the weather resistance of the product is limited

Method used

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  • Water-based emulsion for protecting external wall of building and preparation method for water-based emulsion
  • Water-based emulsion for protecting external wall of building and preparation method for water-based emulsion
  • Water-based emulsion for protecting external wall of building and preparation method for water-based emulsion

Examples

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Comparison scheme
Effect test

Embodiment 1

[0059] Taking the production of 500g of the material of the present invention as an example, the raw materials used and the preparation process thereof:

[0060] (1) Preparation of nuclear emulsion: at 40°C, add 50 g of methyl methacrylate, 40 g of butyl acrylate, 15 g of 2-ethylethyl acrylate, and 15 g of hydroxyethyl methacrylate at a rate of 2 drops / second Slowly add emulsifier 1.5gOP-10 emulsifier, 1.3gSpan-60 emulsifier, emulsification in deionized water 50g of 1.7g sodium lauryl sulfate, obtain the pre-emulsion A of the uniformly dispersed nuclear emulsion, Add pre-emulsion A and 40g of deionized water with 4g of potassium persulfate into 10g of deionized water at 90°C at a rate of 2 drops per second, and stir at 90°C for 40min at a stirring speed of 250rpm , so that each component is uniformly dispersed to obtain nuclear emulsion B;

[0061] (2) Preparation of core-shell emulsion: at 40°C, add 50g of methyl methacrylate, 60g of butyl acrylate, 10g of vinyltrimethoxysil...

Embodiment 2

[0064] Taking the production of 500g of the material of the present invention as an example, the raw materials used and the preparation process thereof:

[0065] (1) Preparation of nuclear emulsion: at 40°C, add 45 g of methyl methacrylate, 50 g of butyl acrylate, 15 g of butyl methacrylate, and 15 g of hydroxyethyl methacrylate at a rate of 2 to 10 drops / second Slowly add emulsifier 1.8gOP-10 emulsifier, 1gSpan-80 emulsifier, emulsification in deionized water 45g of 1.7g sodium lauryl sulfate, obtain the pre-emulsion A of the uniformly dispersed nuclear emulsion, the pre-emulsion Emulsion A and 50 g of deionized water added with 3 g of potassium persulfate were slowly added dropwise to 10 g of deionized water at 75°C at a rate of 5 drops per second, kept stirring at 75°C for dispersion, and stirred at a stirring speed of 200 rpm for 40 min. Make each component disperse evenly, obtain core emulsion B;

[0066] (2) Preparation of core-shell emulsion: at 40°C, add 55g of methyl...

Embodiment 3

[0069] Taking the production of 500g of the material of the present invention as an example, the raw materials used and the preparation process thereof:

[0070] (1) Preparation of nuclear emulsion: at 5°C, slowly add 50 g of ethyl methacrylate, 40 g of ethyl acrylate, and 15 g of 2-ethyl ethyl acrylate to the emulsifier 1.5 at a rate of 10 drops / second. gNP-10 emulsifier, 1.5gSpan-60 emulsifier, emulsified in 50g of deionized water of 1.5g sodium dodecylbenzene sulfonate, obtain the pre-emulsion A of the uniformly dispersed nuclear emulsion, pre-emulsion A and added 40g of deionized water with 2g of potassium sulfate and 2g of ammonium persulfate was slowly added dropwise to 10g of deionized water at 70°C at a rate of 3 drops per second, kept stirring at 70°C for dispersion, and stirred at a stirring speed of 250rpm for 15min. Make each component disperse evenly, obtain core emulsion B;

[0071] (2) Preparation of core-shell emulsion: at 5°C, 55 g of methyl methacrylate, 45 ...

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Abstract

The invention provides a water-based emulsion material for protecting an external wall of a building under a subtropical monsoon climate condition and a preparation method for the water-based emulsion material. The water-based emulsion material is water-based emulsion with a core-shell structure and a cyclosiloxane structure, and comprises the following components in percentage by weight: 25.6 to 74.5 percent of core-shell latex particles, 0.1 to 0.6 percent of a bactericidal anti-alga agent, 0.01 to 0.1 percent of a pH modifier and the balance of de-ionized water. According to the water-based emulsion material and the preparation method, a core-shell emulsion polymerization technology and the hydrophobic effect of an organic silane coupling agent are utilized, and the prepared water-based emulsion material has high protective waterproof performance for the external wall of the building under the subtropical monsoon climate condition, and can also be used in the fields of engineering protection, building water-proofing, bridge maintenance and the like.

Description

[0001] technical field [0002] The invention belongs to the field of water-based emulsion, and specifically relates to a water-based emulsion material having both a core-shell structure and a cyclosiloxane structure and a preparation method thereof. The water-based emulsion material is suitable for protection of building exterior walls under subtropical monsoon climate conditions, and can also be used in engineering Protection, building waterproofing, bridge maintenance and other fields. [0003] Background technique [0004] The service life and performance of the material are inseparable from the environment in which the material is located. For protective materials for building exterior walls, the application performance of the material is greatly restricted by the climate in the area where the building is located. Most of the areas south of the Yangtze River in my country and most of the North China Plain belong to the typical subtropical monsoon climate zone, which is...

Claims

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Application Information

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IPC IPC(8): C09D133/12C09D133/08C09D133/10C09D5/14C08F220/14C08F220/18C08F220/28C08F230/08C08F220/32
Inventor 王洪松李磊刘加平缪昌文田倩王瑞王伟
Owner 江苏吉邦材料科技有限公司
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