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Acrylate polymer emulsion and application thereof in preparation of silicate coating

A technology of polymer emulsion and acrylate, applied in the direction of alkali metal silicate paint, coating, etc., can solve the problems of affecting paint construction performance, long drying time of coating film, inconvenience for users, etc., and achieves low pollution and normal appearance , the effect of appearance without peculiar smell

Active Publication Date: 2020-01-24
广东嘉宝莉科技材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, general inorganic coatings have shortcomings such as long drying time and easy cracking of the coating film, which not only affects the construction performance of the coating, but also has a certain impact on its appearance, causing a lot of inconvenience to users

Method used

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  • Acrylate polymer emulsion and application thereof in preparation of silicate coating
  • Acrylate polymer emulsion and application thereof in preparation of silicate coating
  • Acrylate polymer emulsion and application thereof in preparation of silicate coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1. Acrylate polymer emulsion

[0037] The mass composition of acrylate polymer emulsion: 14.4% of methyl methacrylate, 14.4% of butyl acrylate, 1.2% of N,N-diethylacrylamide, 0.21% of potassium persulfate, branched chain alkyl alcohol polyether sulfate ( ES-730) 1.2%, Alcohol Ether Glycoside (AEG) 0.6%, the balance is water, the total addition amount is 100%.

[0038] In a 250mL four-necked flask equipped with a reflux condenser, dropping funnel, and stirrer, add 0.60g of alcohol ether glycoside (AEG) and 1.20g of branched chain alkyl alcohol polyether sulfate (ES-730) and 38.20g of deionized water, stir and warm the water bath to 80 °C. Add 3.0 g of mixed monomers and 3.0 g of potassium persulfate (KPS) aqueous solution dropwise within 15 minutes respectively, and continue to insulate for 15 minutes after the dropwise addition is completed. Then the remaining 27.0g of KPS aqueous solution and 27.0g of mixed monomers were added dropwise into the four-neck flask within...

Embodiment 2

[0052] 1. Acrylate polymer emulsion

[0053] Quality composition of acrylate polymer emulsion: 14.25% of methyl methacrylate, 14.25% of butyl acrylate, 1.5% of N,N-diethylacrylamide, 0.21% of potassium persulfate, branched chain alkyl alcohol polyether sulfate ( ES-730) 0.9%, Alcohol Ether Glycoside (AEG) 0.9%, the balance is water, the total amount of feed is 100%.

[0054] In a 250mL four-neck flask equipped with a reflux condenser, dropping funnel, and stirrer, add 0.90g of alcohol ether glycoside (AEG) and 0.90g of branched chain alkyl alcohol polyether sulfate (ES-730) and 38.20g of deionized water, stir and warm the water bath to 80 °C. 3.0 g of mixed monomers and 3.0 g of potassium persulfate (KPS) aqueous solution were added dropwise within 15 minutes, and the temperature was continued for 15 minutes after the dropwise addition was completed. Then the remaining 27.0g of KPS aqueous solution and 27.0g of mixed monomers were added dropwise into the four-neck flask with...

Embodiment 3

[0063] 1. Acrylate polymer emulsion

[0064] The mass composition of acrylate polymer emulsion: methyl methacrylate 14.1%, butyl acrylate 14.1%, N,N-diethylacrylamide 1.8%, potassium persulfate 0.21%, branched alkyl alcohol polyether sulfate ( ES-730) 0.6%, alcohol ether glycoside (AEG) 1.2%, the balance is water, and the total feeding amount is 100%.

[0065] In a 250mL four-necked flask equipped with a reflux condenser, a dropping funnel, and a stirrer, add 1.20g of alcohol ether glucoside (AEG) and 0.60g of branched alkyl alcohol polyether sulfate (ES-730) and 38.20g of 3.0g of mixed monomer and 3.0g of potassium persulfate (KPS) aqueous solution were added dropwise within 15min respectively, and the temperature was maintained for 15min after the dropwise addition; then the remaining 27.0g The KPS aqueous solution and 27.0 g of mixed monomers were added dropwise to the four-necked flask within 3.0 h, and after the dropping was completed, the temperature was raised to 90° C...

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Abstract

The invention discloses an acrylate polymer emulsion and application thereof in preparation of a silicate coating. The emulsion is prepared from the following raw materials in parts by mass: 10%-20% of a methacrylate monomer, 10%-20% of an acrylate monomer, 1%-3% of a functional monomer, 0.1%-0.3% of an initiator, 0.5%-1.0% of an anionic emulsifier, and 0.7%-1.5% of a nonionic emulsifier, with thebalance being water, wherein the total feeding amount of the raw materials is 100%. The water absorption rate of a latex film obtained after the acrylate polymer emulsion is dried is stabilized at about 5%, and the pyrolysis temperature is 357.40 DEG C; the acrylate polymer emulsion is suitable for coating decoration; and a film formed by the prepared silicate inorganic coating has surface dryingtime of shorter than 1 h. The silicate inorganic coating prepared by the invention is normal in appearance and free of peculiar smell, has hardness maintained at 3H or above and adhesive force reaching first grade, is free barrier during coating twice in the construction process and shows good comprehensive performance.

Description

[0001] (1) Technical field [0002] The invention belongs to the architectural paint industry, and relates to an interior wall paint for interior decoration, in particular to an acrylic ester polymer emulsion modified general silicate inorganic paint. [0003] (2) Technical background [0004] With the continuous development of society, the continuous improvement of people's living standards, superior performance, environmental friendliness, non-toxic and harmless and other diversified trends make people's requirements for decoration products also increase day by day. At present, the coatings on the market mainly use organic polymers as film-forming base materials, such as epoxy resin and polyurethane. The polyurethane coating prepared by "method" has certain corrosion resistance, but it has the disadvantages of easy aging and burning, and it will have a certain impact on air quality. At the same time, organic latex paint will produce mildew in a humid environment, and the VOC...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/54C08F2/26C08F2/30C09D1/04C09D1/00C09D7/61C09D7/65
CPCC08F220/14C08F220/18C08F2/26C08F2/30C09D1/04C09D1/00C09D7/65C09D7/61C08F220/54
Inventor 陈爱民张信魏金晶区英强林杰生
Owner 广东嘉宝莉科技材料有限公司
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