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Silicone modified acrylic ester emulsion and preparation method thereof

A technology of acrylates and acrylates, which is applied in the field of silicone-modified acrylate emulsions and its preparation, and can solve the problems of polymer water resistance, solvent resistance, and mechanical properties reduction, reduced performance of latex films, poor water resistance, etc. , to achieve the effect of reducing migration, good water resistance, and simplifying the film forming process

Inactive Publication Date: 2014-01-01
INST OF IND TECH GUANGZHOU & CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the emulsion is applied to latex paint or other protective coatings, after the emulsion is formed into a film, the emulsifier will migrate to the surface of the latex film through the polymer bulk phase and enrich it, thereby improving the water resistance, solvent resistance and mechanical properties of the polymer. Reduced, thereby reducing the performance of the latex film
[0003] Acrylic resin has many outstanding advantages, such as excellent light resistance, weather resistance, acid and alkali resistance and corrosion resistance, etc., and has a wide range of applications in coatings, adhesives, fabric finishing agents, etc. Poor water resistance, easy to become brittle at low temperature, easy to become sticky at high temperature, etc., thus limiting its further development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] In this embodiment, a silicone-modified acrylate emulsion is prepared from the following raw materials in parts by weight:

[0042] 9 parts of acrylate mixed monomer, 1 part of silicone monomer, 0.6 part of emulsifier, 0.23 part of initiator, 0.02 part of pH regulator, 30 parts of deionized water;

[0043] The acrylate mixed monomer is methyl methacrylate and butyl acrylate with a mass ratio of 5.5:4.5;

[0044] The organosilicon monomer is γ-methacryloxypropyl tris(trimethylsiloxy)silane (TRIS);

[0045] Described emulsifier is allyloxy nonylphenol polyoxyethylene ether (10) ammonium sulfate;

[0046] Described initiator is ammonium persulfate;

[0047] The pH regulator is disodium hydrogen phosphate.

[0048] The preparation method of above-mentioned organosilicon modified acrylate emulsion is as follows:

[0049] (1) Preparation of seed pre-emulsion 1

[0050] At room temperature, pour 10 parts of deionized water and 0.3 parts of allyloxynonylphenol polyoxyethyl...

Embodiment 2

[0059] In this example, a silicone-modified acrylate emulsion is prepared from the following raw materials in parts by weight: 8.5 parts of acrylate mixed monomers, 1.5 parts of silicone monomers, 0.6 parts of emulsifiers, 0.23 parts of initiators, pH 0.02 parts of conditioner, 30 parts of deionized water;

[0060] The acrylate mixed monomer is methyl methacrylate and butyl acrylate with a mass ratio of 5.5:4.5;

[0061] The organosilicon monomer is γ-methacryloxypropyl tris(trimethylsiloxy)silane (TRIS);

[0062] Described emulsifier is allyloxy nonylphenol polyoxyethylene ether (10) ammonium sulfate;

[0063] Described initiator is potassium persulfate;

[0064] The pH regulator is disodium hydrogen phosphate.

[0065] The preparation method of above-mentioned organosilicon modified acrylate emulsion is as follows:

[0066] (1) Preparation of seed pre-emulsion 1

[0067] At room temperature, pour 10 parts of deionized water and 0.3 parts of allyloxynonylphenol polyoxyet...

Embodiment 3

[0076] In this example, a silicone-modified acrylate emulsion is prepared from the following raw materials in parts by weight: 8 parts of acrylate mixed monomer, 2 parts of silicone monomer, 0.6 part of emulsifier, 0.23 part of initiator, pH 0.02 parts of conditioner, 30 parts of deionized water;

[0077] The acrylate mixed monomer is methyl methacrylate and butyl acrylate with a mass ratio of 6.0:4.0;

[0078] The organosilicon monomer is γ-methacryloxypropyl tris(trimethylsiloxy)silane (TRIS);

[0079] Described emulsifier is allyloxy nonylphenol polyoxyethylene ether (10) ammonium sulfate;

[0080] Described initiator is ammonium persulfate;

[0081] The pH regulator is disodium hydrogen phosphate.

[0082] The preparation method of above-mentioned organosilicon modified acrylate emulsion is as follows:

[0083] (1) Preparation of seed pre-emulsion 1

[0084] At room temperature, pour 10 parts of deionized water and 0.3 parts of allyloxynonylphenol polyoxyethylene ethe...

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Abstract

The invention discloses a silicone modified acrylic ester emulsion and a preparation method thereof. The emulsion is prepared from the following raw materials in parts by weight: 6.5-9 parts of acrylic ester mixed monomers, 1-3.5 parts of an organosilicone monomer, 0.4-0.6 part of an emulsifier, 0.2-0.3 part of an initiating agent, 0.01-0.03 part of a pH conditioning agent, 28-32 parts of deionized water, wherein the acrylic ester mixed monomers are methyl methacrylate and butyl acrylate with the mass ratio of (5.5-6.5):(3.5-4.5); the organosilicone monomer is gamma- 3-[Tris(trimethylsiloxy)silyl]propyl methacrylate. According to the emulsion, the reactive emulsifier is adopted for polymerization reaction, the prepared emulsion is stable, and the latex film of the emulsion has lower surface energy and better water resistance, and can be used as the main film forming matter of a metal anti-corrosion coating.

Description

technical field [0001] The invention relates to the technical field of organic synthesis, in particular to a silicone-modified acrylate emulsion and a preparation method thereof. Background technique [0002] At present, in conventional emulsion polymerization, the emulsifier is mainly adsorbed on the surface of latex particles through physical action. When the emulsion is applied to latex paint or other protective coatings, after the emulsion is formed into a film, the emulsifier will migrate to the surface of the latex film through the polymer bulk phase and enrich it, thereby improving the water resistance, solvent resistance and mechanical properties of the polymer. Reduced, thereby reducing the performance of the latex film. [0003] Acrylic resin has many outstanding advantages, such as excellent light resistance, weather resistance, acid and alkali resistance and corrosion resistance, etc., and has a wide range of applications in coatings, adhesives, fabric finishing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/14C08F230/08C08F2/26C08F2/30C09D133/12C09D133/08C09D5/08
Inventor 杨番刘海峰哈成勇张涛
Owner INST OF IND TECH GUANGZHOU & CHINESE ACADEMY OF SCI
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