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Single-component water-based acrylic dispersoid and preparation method thereof

A water-based acrylic and dispersion technology, applied in the direction of coating, etc., can solve the problems of construction inconvenience and achieve the effect of improving gloss, hardness and weather resistance

Active Publication Date: 2019-04-26
湖北双键精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water-based hydroxyacrylic dispersion cannot be used as a one-component self-drying coating due to the limitation of the synthesis process. It needs to be combined with an isocyanate curing agent to make a two-component coating. It brings some inconvenience to the construction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The preparation method of the one-component aqueous acrylic acid dispersion provided in this embodiment is as follows:

[0029] (1), weigh each component according to the following parts by mass:

[0030] 280 parts of isopropanol

[0031] The first mixed solution: (200 parts of methyl methacrylate; 50 parts of styrene; 50 parts of cyclohexyl methacrylate; 70 parts of butyl methacrylate; 5 parts of butyl acrylate; 5 parts of isooctyl acrylate; 100 parts of isobornyl acrylate; 2 parts of vinyltrimethoxysilane; 3 parts of pentaerythritol tetraacrylate; 4.8 parts of azobisisobutyronitrile)

[0032] The second mixed solution (15 parts of acrylic acid; 80 parts of methyl methacrylate; 10 parts of butyl acrylate; 15 parts of butyl methacrylate; 1 part of pentaerythritol tetraacrylate; 1.6 parts of azobisisobutyronitrile)

[0033] Dimethylethanolamine 16.8 parts

[0034] 720 parts of deionized water

[0035] (2), firstly add the solvent isopropanol into the four-necked flas...

Embodiment 2

[0046] The preparation method of the one-component aqueous acrylic acid dispersion provided in this embodiment is as follows:

[0047] (1), weigh each component according to the following parts by mass:

[0048] 300 parts of isopropanol

[0049] The first mixed solution: (220 parts of methyl methacrylate; 45 parts of styrene; 40 parts of cyclohexyl methacrylate; 80 parts of butyl methacrylate; 10 parts of butyl acrylate; 3 parts of isooctyl acrylate; 80 parts of isobornyl acrylate; 3 parts of vinyltrimethoxysilane; 3.5 parts of pentaerythritol tetraacrylate; 5.5 parts of azobisisobutyronitrile)

[0050] The second mixed solution (17 parts of acrylic acid; 85 parts of methyl methacrylate; 12 parts of butyl acrylate; 13 parts of butyl methacrylate; 1.5 parts of pentaerythritol tetraacrylate; 2 parts of azobisisobutyronitrile)

[0051] 18 parts of triethylamine

[0052] 700 parts of deionized water

[0053] (2), firstly add the solvent isopropanol into the four-necked flask of ...

Embodiment 3

[0060] The preparation method of the one-component aqueous acrylic acid dispersion provided in this embodiment is as follows:

[0061] (1), weigh each component according to the following parts by mass:

[0062] 290 parts of isopropanol

[0063] The first mixed solution: (180 parts of methyl methacrylate; 40 parts of styrene; 45 parts of cyclohexyl methacrylate; 70 parts of butyl methacrylate; 8 parts of butyl acrylate; 1 part of isooctyl acrylate; 120 parts of isobornyl acrylate; 1 part of vinyltrimethoxysilane; 2.5 parts of pentaerythritol tetraacrylate; 4.5 parts of benzoyl peroxide)

[0064] The second mixed solution (16 parts of acrylic acid; 75 parts of methyl methacrylate; 8 parts of butyl acrylate; 16 parts of butyl methacrylate; 0.5 parts of pentaerythritol tetraacrylate; 1.5 parts of benzoyl peroxide)

[0065] Dimethylethanolamine 16.8 parts

[0066] 700 parts of deionized water

[0067] (2), firstly add the solvent isopropanol into the four-necked flask of the r...

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Abstract

The invention provides a single-component water-based acrylic dispersoid and a preparation method thereof. The provided single-component water-based acrylic dispersoid comprises the following components: isopropanol, (methyl) acrylate, a vinyl monomer, an acrylic acid / or a methacrylic acid, pentaerythritol tetraacrylate, an initiator, a neutralizer and deionized water. The provided single-component water-based acrylic dispersoid is convenient to use and operate, the link of preparing paint is saved compared with double-component paint, the performance of the single-component water-based acrylic dispersoid rivals that of a middle and low hydroxyl second-level dispersoid, and the single-component water-based acrylic dispersoid has the characteristics of high glossiness, high fullness, high hardness, good water resistance, good weather fastness and the like. More importantly, the VOC (volatile organic compound) in the provided single-component water-based acrylic dispersoid reaches 0, sothat the single-component water-based acrylic dispersoid is quite environmentally-friendly.

Description

technical field [0001] The invention relates to a high-performance water-based acrylic dispersion, in particular to a single-component water-based acrylic dispersion, which belongs to the technical field of water-based coatings. Background technique [0002] In the social environment with increasingly stringent environmental protection requirements, it has long been the general trend for water-based paints to replace oil-based paints. Water-based hydroxyacrylic secondary dispersions have developed rapidly in recent years and are widely used in the field of industrial coatings. The hydroxyl group in the water-based hydroxyacrylic secondary dispersion and the isocyanate group in the isocyanate curing agent can react and cross-link to form a network structure. The water-based two-component coating made of the two has high gloss, high fullness, high Hardness, excellent chemical resistance, good water resistance, good weather resistance, etc., are widely used in industrial coatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/18C08F212/08C08F230/08C08F222/14C08F220/06C09D133/12
CPCC08F220/14C09D143/04C08F220/18C08F220/1804C08F212/08C08F230/08C08F222/104C08F220/06
Inventor 高州柴广刘志鸿田军马世凯胡勇军董威游仁国雷木生
Owner 湖北双键精细化工有限公司
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