Styrene-acrylic emulsion containing carboxylic acid groups as well as styrene-acrylic emulsion interior wall coating and preparation method thereof

A styrene-acrylic emulsion, carboxylic acid group technology, applied in epoxy resin coatings, antifouling/underwater coatings, coatings, etc., can solve problems such as water resistance and scrub resistance are not ideal.

Active Publication Date: 2011-02-16
CHANGZHOU GUANGHUI CHEM
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Problems solved by technology

It simply emulsifies polyacrylate into a water-soluble paint by using polyethylene glycol as a dispersant. The coating film...

Method used

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Embodiment Construction

[0044] The styrene-acrylic emulsion of band carboxylic acid group of the present invention, its raw material is by the component with following mass percent:

[0045] Styrene 20-25%,

[0046] Ethyl Acrylate 5-8%,

[0047] Butyl Acrylate 7-10%,

[0048] Triethylene glycol dimethacrylate 1.5-2.0%,

[0049] Methylene succinic acid 2-3%,

[0050] Lauryl Methacrylate 6-8%,

[0051] MS-1 emulsifier 2-4%,

[0052] Potassium persulfate 0.2-0.4%,

[0053] Sodium bicarbonate 0.1-0.2%,

[0054] deionized water balance,

[0055] The solid content of the MS-1 emulsifier of the present invention is 30% by mass percentage, and the glass transition temperature Tg of the emulsion is 2-5°C, the pH value is 4-6, the viscosity is 250-750mPa·S, and the volatile organic The compound content is ≤5 g / L, the solid content is 48±2% by mass percentage, and the deionized water is pure water with conductivity ≤1μs / cm,

[0056] The specific components and mass fraction ratio of the styrene-acrylic...

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Abstract

The invention relates to a styrene-acrylic emulsion containing carboxylic acid groups, which comprises the following raw materials in percentage by weight: 20-25 percent of styrene, 5-8 percent of ethyl acrylate, 7-10 percent of butyl acrylate, 1.5-2.0 percent of triethylene glycol dimethacrylate, 2-3 percent of itaconic acid, 6-8 percent of lauryl methacrylate, 2-4 percent of MS-1 emulsion, 0.2-0.4 percent of potassium persulphate, 0.1-0.2 percent of sodium bicarbonate and the balance of deionized water, wherein the solid component content of the MA-1 emulsion is 30 wt%, the styrene-acrylic emulsion has the glass transition temperature of 2-5 DEG C, the pH value of 4-6 and the viscosity of 250-750mPa.S, the content of a volatile organic compound is not larger than 5g/l, and the solid component content is 48+/-2 wt%. The invention provides the styrene-acrylic emulsion containing carboxylic acid groups, which has low glass transition temperature Tg and low volatile organic compound content.

Description

technical field [0001] The invention relates to a styrene-acrylic emulsion with carboxylic acid groups and a styrene-acrylic emulsion interior wall paint and a preparation method thereof, belonging to the technical field of architectural paint. Background technique [0002] Interior wall paint is an important part of interior decoration materials. Some inferior paints contain a large amount of harmful substances such as volatile organic compounds (VOC) and free formaldehyde. The harm to environmental pollution and human health cannot be ignored. To this end, my country has implemented the mandatory national standard GB18582-2008 "Limits of Hazardous Substances in Interior Decoration Materials and Interior Wall Coatings" to strictly control harmful substances such as VOC, formaldehyde, and heavy metals in interior wall coatings. [0003] Most of the film-forming substances of interior wall coatings are mainly emulsions. In order to reduce the VOC content in the coatings, emul...

Claims

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Application Information

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IPC IPC(8): C09D125/14C09D163/00C08F212/08C09D7/12C09D5/16C08F220/18
Inventor 赵绍洪张辉耀陆小英将南昌
Owner CHANGZHOU GUANGHUI CHEM
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