Acrylic ester emulsion and preparation method thereof

A technology of acrylate and emulsion, applied in the direction of coating, etc., can solve the problems of poor wear resistance, insignificant performance improvement, poor anti-blocking property of paint film, etc., and achieve the effect of improving wear resistance and anti-blocking property

Active Publication Date: 2011-04-13
上海展辰涂料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the amount of acrylate elastic emulsion used as water-based wood coating is increasing day by day. Since acrylic emulsion is free radical polymerization, the molecular structure formed is linear, so the wood paint made of it has poor abrasion resistance and paint film resistance. Disadvantages of poor adhesion
In recent years, many researchers have carried out a lot of research work to further improve the performance of acrylate emulsions. The more common method is to introduce cross-linking monomers. At present, most of the emulsions on the market use acrylamide as a cross-linking agent. Introduced, played a certain cross-linking effect, but did not change the linear structure of the acrylic emulsion, so the performance improvement is not obvious

Method used

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  • Acrylic ester emulsion and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0020] The preparation method of embodiment 1~3 acrylate emulsion

[0021] (1), preparation of emulsion, initiator I, initiator II

[0022] Add water, alkyl ether sulfate, BA, MMA, AA, and DAAM into the emulsification tank in sequence, and stir for 30-40 minutes to obtain an emulsion;

[0023] APS is dissolved in water to obtain initiator solution I;

[0024] The preparation method of the initiator II is the same as that of the initiator solution I, except that the parts by weight of each component are different. The parts by weight of the above raw materials are shown in Table 1.

[0025] Table 1 list of raw materials

[0026]

[0027] (2) Response

[0028] Add water, alkylphenol polyether sulfosuccinic acid monoester sodium salt and buffer Na 2 CO 3 , stirring, heating;

[0029] When the temperature rises to 85-88°C, stop heating, add initiator solution I into the reaction kettle, and stir;

[0030] Add the emulsion and initiator solution II to the reaction kettle...

Embodiment 4

[0033] The performance of embodiment 4 acrylate emulsion

[0034] Using the wood paint emulsion prepared by free radical polymerization in the prior art as a contrast, add 10% film-forming aids to the acrylate emulsion prepared in Example 3, and make water-based wood paint. The performance is tested, and the results are shown in Table 2. Show. Among them, the method stipulated in the national standard of GB / T1762-1980 (1989) paint film back tackiness determination method is used, and the high temperature back tackiness of the paint film is characterized by hot pressure resistance; the method stipulated in ISO 7784-2:1997 is used, and CS -10 size grinding wheel tested for abrasion resistance.

[0035] The performance of table 2 acrylate emulsion

[0036] Test items

[0037] The results show that the anti-blocking and abrasion resistance of the acrylate emulsion prepared by the method of the present invention are obviously better than those of the wood paint emulsion...

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Abstract

The invention discloses acrylic ester emulsion and a preparation method thereof. The preparation method comprises the following steps of: gradually dropwise adding emulsion which contains an anion emulsifier, butyl acrylate, butyl methacrylate, acrylic acid and diacetone acrylamide, and initiator solution into solution which contains sodium alkylphenol polyether sulfosuccinate and an initiator with stirring, controlling the temperature to be between 85 and 88 DEG C, after dropwise adding, reducing the temperature to between 35 and 40 DEG C, adding water, ammonia water and an ADH cross linkingagent, and stirring to obtain the acrylic ester emulsion. The acrylic ester emulsion obtained by the preparation method has relatively high blocking resistance and wear resistance.

Description

technical field [0001] The invention relates to an acrylate emulsion and a preparation method thereof. Background technique [0002] At present, the amount of acrylate elastic emulsion used as water-based wood coating is increasing day by day. Since acrylic emulsion is free radical polymerization, the molecular structure formed is linear, so the wood paint made of it has poor abrasion resistance and paint film resistance. The disadvantage of poor adhesion. In recent years, many researchers have carried out a lot of research work to further improve the performance of acrylate emulsions. The more common method is to introduce cross-linking monomers. At present, most of the emulsions on the market use acrylamide as a cross-linking agent. The introduction played a certain cross-linking effect, but did not change the linear structure of the acrylic emulsion, so the performance improvement was not obvious. Contents of the invention [0003] The purpose of the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/06C08F222/38C08F2/26C09D133/10
Inventor 于义田李婷刘志刚
Owner 上海展辰涂料有限公司
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