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Styrene acrylic emulsion for interior wall coating material, and preparation method thereof

A technology of interior wall coating and styrene-acrylic emulsion, applied in coating and other directions, can solve problems such as low cost performance, achieve the effects of excellent performance, enhanced scrub resistance, and resource saving

Inactive Publication Date: 2012-12-19
上海展辰涂料有限公司 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the styrene-acrylic emulsion used in interior wall coatings on the market needs to be added in a large amount to make the coating have good scrub resistance, and the cost performance is low, which cannot meet people's needs

Method used

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  • Styrene acrylic emulsion for interior wall coating material, and preparation method thereof
  • Styrene acrylic emulsion for interior wall coating material, and preparation method thereof
  • Styrene acrylic emulsion for interior wall coating material, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) In parts by weight, mix 16 parts of deionized water, 0.3 parts of alkylphenol ether ammonium sulfate, 0.3 parts of nonylphenol polyoxyethylene ether, and add 27 parts of styrene and 21 parts of butyl acrylate. A mixture consisting of 1 part of acrylic acid and 2.4 parts of acrylamide aqueous solution with a weight concentration of 50% was emulsified for 30 minutes to prepare pre-emulsion A.

[0045] (2) Add the reactive silicone to the above-mentioned pre-emulsion A, emulsify for 15 minutes to prepare pre-emulsion B;

[0046] 0.7 parts of reactive organosilicon and 63.46 parts of pre-emulsion A.

[0047] The reactive organosilicon monomer is γ-methacryloxypropyltrimethoxysilane;

[0048] (3) Mix 25 parts of water, 0.3 parts of alkylphenol ether ammonium sulfate, 0.2 parts of nonylphenol polyoxyethylene ether, 1 part of methanol, and 0.08 parts of sodium bicarbonate, stir at 170r / min, blow nitrogen, and turn on the condensed water , Warm up to 77°C, add 3.34 parts of pre-em...

Embodiment 2

[0059] (1) In parts by weight, mix 16 parts of water, 0.3 parts of alkylphenol ether ammonium sulfate, and 0.3 parts of alkylphenol polyoxyethylene ether, and add 25 parts of styrene and 24 parts of butyl acrylate that have been evenly stirred. A mixture of 1 part of methacrylic acid and 2.4 parts of 50% acrylamide aqueous solution was emulsified for 30 minutes to obtain pre-emulsion A.

[0060] (2) Add the reactive silicone to the above-mentioned pre-emulsion A, emulsify for 15 minutes to prepare pre-emulsion B;

[0061] 0.7 parts of reactive silicone, 67.8 parts of pre-emulsion;

[0062] The reactive organosilicon monomer is vinyl triethoxy silane;

[0063] (3) Mix 25 parts of water, 0.3 parts of alkylphenol ether ammonium sulfate, 0.2 parts of alkylphenol polyoxyethylene ether, 1 part of methanol, and 0.08 parts of sodium bicarbonate, stir at 170r / min, blow nitrogen, and turn on the condensed water , Warm up to 77°C, add 3.39 parts of 5% pre-emulsified emulsion A, keep the tempera...

Embodiment 3

[0074] (1) In parts by weight, mix 16 parts of deionized water, 0.4 parts of sodium alkylphenol polyether sulfosuccinate monoester, 0.35 parts of nonylphenol polyoxyethylene ether, and add 20 parts of styrene, A mixture composed of 7 parts of methyl methacrylate, 21 parts of butyl acrylate, 1 part of methacrylic acid and 2.0 parts of 50% acrylamide aqueous solution by weight concentration was emulsified for 30 minutes to prepare pre-emulsion A.

[0075] (2) Add the reactive silicone to the above-mentioned pre-emulsion A, emulsify for 15 minutes to prepare pre-emulsion B;

[0076] 0.7 parts of reactive silicone, 66.75 parts of pre-emulsion A;

[0077] The reactive organosilicon monomer is vinyl triethoxy silane;

[0078] (3) Mix 25 parts of water, 0.25 parts of sodium alkylphenol polyether sulfosuccinate monoester, 0.15 parts of nonylphenol polyoxyethylene ether, 1 part of methanol and 0.08 part of sodium bicarbonate, and stir at 170r / min , Blow nitrogen, turn on the condensed water, ...

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Abstract

The invention provides a styrene acrylic emulsion for interior wall coating material, and a preparation method of the styrene acrylic emulsion; the preparation method comprises the following steps of: (1) mixing water, composite emulsifying agent, acrylate monomer and functional monomer, and emulsifying to obtain pre-emulsified liquid A; (2) adding reactive organic silicon into the pre-emulsified liquid A, and emulsifying to obtain pre-emulsified liquid B; (3) adding mixture of water, composite emulsifying agent, methyl alcohol and sodium bicarbonate into the pre-emulsified liquid A obtained in the step (1), and adding initiator for reaction to obtain seed emulsion C; (4) adding the pre-emulsified liquid B into the seed emulsion C obtained in the step (3), and simultaneously adding initiator water solution into the mixed solution; carrying out heat preservation after dripping, and cooling the emulsion; and (5) removing residual monomer, and adjusting the pH to be 7-8 to obtain the styrene acrylic emulsion for the interior wall coating material. The styrene acrylic emulsion can be used for preparing the interior wall coating material, and is less in adding quantity and better in scrub resistance than that of other emulsions, thus reducing the cost of coating and saving resources.

Description

Technical field [0001] The invention relates to a method for preparing a styrene-acrylic emulsion, in particular to a method for preparing a styrene-acrylic emulsion for interior wall coatings. Background technique [0002] Styrene-acrylic emulsion is cost-effective, has excellent stain resistance, scrub resistance, strong adhesion, and good film-forming properties. As for interior wall coatings, the paint formula designers have the most important requirements for styrene-acrylic emulsions for the scrubbing resistance, stain resistance, bonding strength, and the ability to minimize the cost of the formulation. [0003] At present, the styrene-acrylic emulsion used in interior wall coatings on the market needs to be added in a large amount to make the coating have good scrub resistance and low cost performance, which cannot meet people's needs. Summary of the invention [0004] The purpose of the present invention is to provide a styrene-acrylic emulsion for interior wall coatings a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/18C08F220/14C08F220/06C08F220/56C08F230/08C08F2/30C08F2/26C09D125/14C09D133/08
Inventor 刘勇朱强刘志刚
Owner 上海展辰涂料有限公司
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