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High-water-resistance waterproof emulsion and preparation method thereof

A waterproof emulsion and solution technology, applied in the direction of coating, etc., can solve the problems of emulsion strength and waterproof and water resistance to be improved, and achieve self-healing, high tensile strength and impermeability, and improve waterproof and water resistance.

Active Publication Date: 2020-02-21
威县双赢化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, among the monomers in the first pre-emulsion and the second pre-emulsion in this method, the proportion of acrylic ester monomers is very large, and in the generated polymer, the structure is relatively regular, and after the emulsion is dried, it has Good air permeability and elasticity, but the strength and water resistance of the emulsion need to be improved

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  • High-water-resistance waterproof emulsion and preparation method thereof
  • High-water-resistance waterproof emulsion and preparation method thereof

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preparation example Construction

[0038] In the preparation method of the high water resistance and waterproof emulsion of the present invention, the temperature when the first mixed solution is mixed with the first ammonium persulfate solution is 75-85°C. The dropwise addition time when the second mixed solution is added is 1-1.8h. After the second mixed solution is added dropwise, it is kept at 75-85° C. for 20-30 minutes. The dropwise addition time when the second ammonium persulfate solution is added is 20-30min. After the second ammonium persulfate solution is added dropwise, keep the temperature at 75-85° C. for 45-55 minutes. The dropwise addition time when the third mixed solution is added is 4-6h. The dripping time when the third ammonium persulfate solution is added is 10-15min. After the third ammonium persulfate solution is added dropwise, keep the temperature at 75-85° C. for 20-30 minutes.

[0039] After the third ammonium persulfate solution has been added dropwise and the heat preservation ...

Embodiment 1

[0043] The high water-resistant waterproof emulsion of this embodiment is mainly made of the following raw materials: styrene 1450kg, acrylamide 120kg, acrylic acid 70kg, butyl acrylate 4450kg, sodium dodecyl diphenyl ether disulfonate 77kg, baking soda 9kg, 30kg of isopropanol, 50kg of ammonium persulfate, 5kg of tert-butyl hydroperoxide, 7kg of white powder, 10kg of pH regulator, 9kg of post-additive, and 5000kg of water. The pH regulator is caustic soda, and the post-additive is isothiazolinone.

[0044] The preparation method of the highly water-resistant waterproof emulsion of the present embodiment comprises the steps:

[0045] 1) Stir baking soda, 25kg sodium dodecyl diphenyl ether disulfonate, and 480kg water for 30 minutes and mix evenly to obtain the first mixed solution;

[0046] Add 450kg of styrene, 1150kg of butyl acrylate, 45kg of acrylic acid, 80kg of acrylamide, 22kg of sodium dodecyl diphenyl ether disulfonate, and 1150kg of water into a stirring container a...

Embodiment 2

[0053] The high water-resistant waterproof emulsion of this embodiment is mainly made of the following raw materials: 1500 kg of styrene, 115 kg of acrylamide, 75 kg of acrylic acid, 4500 kg of butyl acrylate, 80 kg of sodium dodecyl diphenyl ether disulfonate, 11 kg of baking soda, 25kg of isopropanol, 40kg of ammonium persulfate, 5.5kg of tert-butyl hydroperoxide, 6kg of hanging white powder, 35kg of pH regulator, 3kg of post-additive, and 5100kg of water. The pH regulator is caustic soda, and the post-additive is 1,2-benzisothiazolin-3-one.

[0054] The preparation method of the highly water-resistant waterproof emulsion of the present embodiment comprises the steps:

[0055] 1) Stir baking soda, 20kg sodium dodecyl diphenyl ether disulfonate, and 520kg water for 30 minutes and mix evenly to obtain the first mixed solution;

[0056] Add 550 kg of styrene, 1100 kg of butyl acrylate, 45 kg of acrylic acid, 75 kg of acrylamide, 30 kg of sodium dodecyl diphenyl ether disulfona...

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Abstract

The invention discloses a high-water-resistance waterproof emulsion and a preparation method thereof, and belongs to the technical field of waterproof emulsions. The high- water-resistance waterproofemulsion is mainly prepared from the following raw materials in parts by weight: 1450-1500 parts of styrene, 110-120 parts of acrylamide, 70-80 parts of acrylic acid, 4400-4500 parts of butyl acrylate, 70-80 parts of sodium dodecyl diphenyl ether disulfonate, 9-11 parts of sodium bicarbonate, 20-30 parts of isopropanol, 40-50 parts of ammonium persulfate, 5-7 parts of tert-butyl hydrogen peroxide,5-7 parts of formaldehyde sodium sulfoxylate, 10-50 parts of a pH regulator, 3-9 parts of a post-additive and 5000-5200 parts of water. The high- water-resistance waterproof emulsion of the inventioncan utilize steric effects of styrene to generate complex and irregular cross-linked network structures in polymers, thereby improving the water-resistant property of the aqueous emulsion.

Description

technical field [0001] The invention relates to the technical field of waterproof emulsions, more specifically, to a highly water-resistant waterproof emulsion and a preparation method thereof. Background technique [0002] With the continuous development of the architectural decoration industry, the use of water-based emulsions is becoming more and more extensive. Different application fields have higher and higher performance requirements for water-based emulsions, and there are more prominent requirements for the professional performance of water-based emulsions. For example, different usage scenarios have different requirements for the strength, air permeability, elasticity, waterproofness, high temperature resistance, and processability of aqueous emulsions. Therefore, when producing water-based emulsions, it is of great significance to develop products with excellent comprehensive properties that can meet the requirements of different usage scenarios. [0003] The Chi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F212/08C08F220/56C08F220/06C08F220/58C08F222/02C08F220/28C09D133/08
CPCC08F220/18C09D133/26
Inventor 高维钰黄尚文俞良刘存刚
Owner 威县双赢化工有限公司