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Preparation method of high-toughness waterborne acrylic paint

A water-based acrylic, high-toughness technology, used in anti-corrosion coatings, coatings, etc., can solve problems such as affecting the beauty of building decoration, reducing building service life, easy cracking and peeling of coatings, and achieving good aesthetics and impact resistance. Good, excellent waterproof performance

Inactive Publication Date: 2018-04-24
安徽建邦建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the acrylic paints currently on the domestic market have poor toughness and are not resistant to impact, which leads to easy cracking and peeling of the paint, and rainwater is easy to penetrate into the wall and corrode the wall. This not only affects the decorative appearance of the building, but also reduces the building. service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method for high-toughness water-based acrylic paint, comprising the steps of:

[0022] S1. Stir 5g glycerin, 4g wetting and dispersing agent, 2g defoamer, 2.5g antifungal agent, 20g zeolite powder, 14g fly ash, 6g calcined kaolin, 18g mica powder, 6g hollow glass microspheres and 80g water for 10min , stirring speed is 3000r / min, obtains premix;

[0023] S2. Add 40 g of acrylate emulsion, 4 g of polyurethane compound, 4 g of film-forming aid, and 2 g of leveling agent to 60 g of the premix, mix evenly, and pass through a 150-mesh sieve to obtain a high-toughness water-based acrylic paint.

[0024] The polyurethane compound is prepared by the following process: dissolve 20g of polyglycerol in 70g of water, add 10g of phosphate buffer solution with a pH value of 7.4-7.8, stir well, add 0.4g of methacryloyloxyethyltrimethylammonium chloride, and heat up Stir at 55°C for 20 minutes, add 8g of β-cyclodextrin, adjust the temperature to 85°C, stir for 10 minutes...

Embodiment 2

[0026] A preparation method for high-toughness water-based acrylic paint, comprising the steps of:

[0027] S1. Stir 9g glycerin, 2g wetting and dispersing agent, 4g defoamer, 1.5g antifungal agent, 30g zeolite powder, 8g fly ash, 12g calcined kaolin, 10g mica powder, 12g hollow glass microspheres and 60g water for 20min , stirring speed is 2600r / min, obtains premix;

[0028] S2. Add 20 g of acrylate emulsion, 8 g of polyurethane compound, 2 g of film-forming aid, and 4 g of leveling agent to 80 g of the premix, mix evenly, and pass through a 130-mesh sieve to obtain a high-toughness water-based acrylic paint.

[0029] The polyurethane compound is prepared by the following process: dissolve 24g of polyglycerol in 50g of water, add 20g of phosphate buffer solution with a pH value of 7.4-7.8, stir evenly, add 0.2g of methacryloyloxyethyltrimethylammonium chloride, and heat up Stir at 65°C for 10 minutes, add 16g of β-cyclodextrin, adjust the temperature to 75°C, stir for 20 min...

Embodiment 3

[0031] A preparation method for high-toughness water-based acrylic paint, comprising the steps of:

[0032] S1, with 6g glycerin, 3.5g wetting and dispersing agent, 2.5g defoamer, 2.2g antifungal agent, 22g zeolite powder, 12g fly ash, 8g calcined kaolin, 16g mica powder, 8g hollow glass microspheres and 75g water Stir for 12min, the stirring speed is 2900r / min, obtain the premix;

[0033] S2. Add 35g of acrylate emulsion, 5g of polyurethane compound, 3.5g of film-forming aid, and 2.5g of leveling agent to 65g of the premix, mix evenly, and pass through a 145-mesh sieve to obtain a high-toughness water-based acrylic paint.

[0034] The polyurethane compound is prepared by the following process: dissolve 21g of polyglycerol in 65g of water, add 12g of phosphate buffer solution with a pH value of 7.4-7.8, stir evenly, add 0.35g of methacryloyloxyethyltrimethylammonium chloride, and heat up Stir at 58°C for 18 minutes, add 10g of β-cyclodextrin, adjust the temperature to 82°C, s...

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Abstract

The invention discloses a preparation method of high-toughness waterborne acrylic paint. The preparation method comprises following steps: glycerin, a wetting dispersant, a defoaming agent, a mildew preventive, zeolite powder, fly ash, calcined kaolin, mica powder, hollow glass beads and water are stirred, and premix is obtained; acrylate emulsion, a polyurethane compound, a coalescing agent and aleveling agent are added to the premix and mixed uniformly, the mixture is screened, and the high-toughness waterborne acrylic paint is obtained. The polyurethane compound is prepared with a technology comprising steps as follows: polyglycerol is dissolved in water, a phosphate buffered solution is added, the mixed solution is stirred uniformly, methacrylatoethyl trimethyl ammonium chloride is added, heating and stirring are performed, beta-cyclodextrin is added, the temperature adjustment and stirring are executed, polyurethane is added for continuous stirring, and the polyurethane compoundis obtained. The paint is good in toughness and absorptivity, high in wall adhesion strength, excellent in waterproof property and free of VOC release, has the environment-friendly effect and is beneficial to physical and mental health, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a preparation method of a high-toughness water-based acrylic coating. Background technique [0002] At present, the exterior wall coatings used in my country are mainly based on acrylic emulsion. Water-based acrylic coatings have the advantages of moderate cost, excellent weather resistance, good adjustability, and no release of organic solvents. They are a type of coating product that has developed very rapidly in recent years. . [0003] However, the acrylic paints currently on the domestic market have poor toughness and are not resistant to impact, which leads to easy cracking and peeling of the paint, and rainwater is easy to penetrate into the wall and corrode the wall. This not only affects the decorative appearance of the building, but also reduces the building. service life. Contents of the invention [0004] Based on the technical problems in the background technolog...

Claims

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Application Information

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IPC IPC(8): C09D4/06C09D4/02C09D5/08C09D7/61C09D7/63C09D7/65
CPCC09D4/06C09D5/08
Inventor 迟利山朱国庆
Owner 安徽建邦建材有限公司
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