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A kind of styrene-acrylic emulsion and the scrub-resistant high PVC interior wall latex paint prepared by it

A technology of latex paint and styrene-acrylic emulsion for interior walls, applied in latex paint, coating, etc., can solve many problems and achieve the effects of improving bearing capacity, simple process and wide sources

Inactive Publication Date: 2018-09-14
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are not many researches on the combination of the source emulsion synthesis process and the paint formulation process, and most of them are currently researching on the scrub resistance of exterior wall latex coatings.

Method used

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  • A kind of styrene-acrylic emulsion and the scrub-resistant high PVC interior wall latex paint prepared by it
  • A kind of styrene-acrylic emulsion and the scrub-resistant high PVC interior wall latex paint prepared by it
  • A kind of styrene-acrylic emulsion and the scrub-resistant high PVC interior wall latex paint prepared by it

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The styrene-acrylic emulsion (i.e. styrene-acrylate emulsion) is prepared by semi-continuous seed emulsion polymerization, and the used raw material components and weight are as follows:

[0051] Polymerized main monomer: 60g styrene (St), 40g butyl acrylate (BA)

[0052] Other materials: 2g methacrylic acid (MAA), 0.3g functional polymerized monomer 2-acrylamide-2-methylpropanesulfonic acid sodium salt (COPS-2), 0.7g anion-nonionic composite emulsifier isomerization Alcohol polyoxyethylene ether ammonium sulfate (KL-525), 1g crosslinking monomer (SOE-40), 0.5g ammonium persulfate (APS), 0.4g sodium bicarbonate, 100g deionized water;

[0053] Wherein, the cross-linking monomer SOE-40 is a product of Foshan Daoning Chemical Co., Ltd., and the specific structural formula of the cross-linking monomer (SOE-40) is:

[0054]

[0055] The preparation method of the self-made styrene-acrylic emulsion for preparing the high PVC interior wall glue coating with excellent scrub ...

Embodiment 2

[0067] The styrene-acrylic emulsion (i.e. styrene-acrylate emulsion) is prepared by semi-continuous seed emulsion polymerization, and the used raw material components and weight are as follows:

[0068] Polymerized main monomer: 60g styrene (St), 40g butyl acrylate (BA)

[0069] Other materials: 2g methacrylic acid (MAA), 0.3g functional polymerized monomer 2-acrylamide-2-methylpropanesulfonic acid sodium salt (COPS-2), 0.7g anion-nonionic composite emulsifier isomerization Alcohol polyoxyethylene ether ammonium sulfate (KL-525), 2g cross-linking monomer (SOE-40), 0.5g ammonium persulfate (APS), 0.4g sodium bicarbonate, 100g deionized water;

[0070] Wherein, the structure of the crosslinking monomer is the same as in Example 1.

[0071] The preparation method of the self-made styrene-acrylic emulsion for preparing the high PVC interior wall glue coating with excellent scrub resistance is as follows:

[0072] (1) Add pH buffer, anionic-nonionic emulsifier (KL-525), initiator...

Embodiment 3

[0083] The styrene-acrylic emulsion (i.e. styrene-acrylate emulsion) is prepared by semi-continuous seed emulsion polymerization, and the used raw material components and weight are as follows:

[0084] Polymerized main monomer: 60g styrene (St), 40g butyl acrylate (BA)

[0085] Other materials: 2g methacrylic acid (MAA), 0.3g functional polymerized monomer 2-acrylamide-2-methylpropanesulfonic acid sodium salt (COPS-2), 0.7g anion-nonionic composite emulsifier isomerization Alcohol polyoxyethylene ether ammonium sulfate (KL-525), 2g cross-linking monomer (link-78), 0.5g ammonium persulfate (APS), 0.4g sodium bicarbonate, 100g deionized water;

[0086] Wherein, the cross-linking monomer link-78 is a product of Foshan Daoning Chemical Co., Ltd., and the specific structural formula of the cross-linking monomer (link-78) is:

[0087]

[0088] The preparation method of the self-made styrene-acrylic emulsion for preparing the high PVC interior wall glue coating with excellent sc...

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Abstract

The invention belongs to the technical field of paint and discloses styrene acrylic emulsion and scrub-resistant high-PVC (pigment volume concentration) interior wall latex paint prepared from the same. According to the styrene acrylic emulsion, a semi-continuous seed emulsion polymerization method is adopted, a specific kind of crosslinking monomer is enabled to have a synergistic effect with an anionic / nonionic emulsifier and a functional polymeric monomer through controlling of the adding amount and the adding manner of the crosslinking monomer, and the emulsion polymerization stability and the compatibility of the emulsion with the components in the paint preparation formula are improved. The latex paint prepared from the styrene acrylic emulsion adopts a specific kind of anionic / nonionic composite thickener in combination with a specific paint preparation process, the obtained high-PVC interior wall latex paint has low content of VOC (volatile organic compound) and free formaldehyde and good alkali resistance and weather resistance, especially the scrub resistance times is 2-4 times of the scrub resistance times of the latex paint on the same grade, and good application prospect is realized.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a styrene-acrylic emulsion and a scrub-resistant high-PVC interior wall latex paint prepared therefrom. Background technique [0002] As a branch of paint, interior wall paint plays an indispensable role in interior decoration. However, latex paint uses water as the dispersion medium and contains no organic solvents or only a small amount of organic solvents. It is favored under the situation that environmental protection regulations limit the content of volatile organic compounds (VOC) in paints. Interior wall latex paint has been widely researched and applied because of its environmental protection, excellent construction performance and high cost performance. [0003] Latex paint is generally composed of synthetic resin emulsion, pigments, fillers, additives and water. Among them, the synthetic resin emulsion is not only the core of the latex paint but also the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F220/18C08F220/06C08F220/58C08F230/08C08F2/26C08F2/30C09D125/14C09D7/61C09D7/65C09D5/02
CPCC08F212/08C08L2205/03C09D5/02C09D7/61C09D7/65C09D125/14C08L71/02C08L1/284C08K13/02C08K2003/2241C08K3/346C08K2003/265C08F220/1804C08F220/06C08F220/585C08F230/08
Inventor 沈慧芳罗文凤
Owner SOUTH CHINA UNIV OF TECH
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