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Styrene-acrylic emulsion

A technology of styrene-acrylic emulsion and emulsifier, which is applied in the direction of coating, etc., can solve the problems of shedding, poor adhesion performance of styrene-acrylic emulsion coating, poor water resistance, and affect the weather resistance of styrene-acrylic emulsion coating, and achieve the effect of improving weather resistance

Inactive Publication Date: 2020-08-25
东联北方科技(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The formula of the existing styrene-acrylic emulsion mainly includes four parts of styrene monomer, acrylate monomer, emulsifier and initiator. Although the styrene-acrylic emulsion prepared by this formula has good oil resistance, heat resistance and aging resistance , but the styrene-acrylic emulsion paint prepared using styrene-acrylic emulsion as the main ingredient has poor adhesion and water resistance, and it is easy to fall off from the surface of the substrate when it is exposed to the external environment for a long time, which affects the weather resistance of the styrene-acrylic emulsion paint.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 is a styrene-acrylic emulsion disclosed by the present invention, comprising the following components by weight: 95 parts of acrylate monomers, 65 parts of styrene monomers, 3 parts of butyl acrylate, hydroxyethyl methylcellulose 3 parts, 3 parts of amino-modified polydimethylsiloxane, 7 parts of weather-resistant materials, 6 parts of diatomite, flake graphite and titanium dioxide powder with a mass ratio of 2.75:1:1.5, 4.5 parts of sodium bicarbonate, titanic acid 5 parts of ester, 4 parts of 2-aminoethylethylene urea, 2.5 parts of silane coupling agent, 2.5 parts of polyvinyl alcohol, 2 parts of ammonium persulfate and 225 parts of deionized water;

[0032] The weather-resistant material includes the following components by weight: 22.5 parts of sodium fatty alcohol polyethylene sulfonate, 15 parts of silicon dioxide powder, 10 parts of silicone amide, 6 parts of hexamethylenediamine and 3.5 parts of triethylenetetramine.

Embodiment 2

[0033] Embodiment 2 is a styrene-acrylic emulsion disclosed by the present invention, comprising the following components by weight: 85 parts of acrylate monomer, 55 parts of styrene monomer, 1 part of butyl acrylate, hydroxyethyl methylcellulose 1 part, 1 part of amino-modified polydimethylsiloxane, 4 parts of weather-resistant materials, 2 parts of diatomaceous earth, flake graphite and titanium dioxide powder with a mass ratio of 2.75:1:1.5, 1 part of sodium bicarbonate, titanic acid 3 parts of ester, 2 parts of 2-aminoethylethylene urea, 1 part of silane coupling agent, 2 parts of polyvinyl alcohol, 1 part of ammonium persulfate and 150 parts of deionized water;

[0034] The weather-resistant material components are the same as in Example 1.

Embodiment 3

[0035] Embodiment 3 is a styrene-acrylic emulsion disclosed by the present invention, comprising the following components by weight: 105 parts of acrylate monomer, 75 parts of styrene monomer, 5 parts of butyl acrylate, hydroxyethyl methylcellulose 5 parts, 5 parts of amino-modified polydimethylsiloxane, 10 parts of weather-resistant material, 10 parts of diatomite, flake graphite and titanium dioxide powder with a mass ratio of 2.75:1:1.5, 8 parts of sodium bicarbonate, titanic acid 7 parts of ester, 6 parts of 2-aminoethylethylene urea, 4 parts of silane coupling agent, 3 parts of polyvinyl alcohol, 3 parts of ammonium persulfate and 300 parts of deionized water;

[0036] The weather-resistant material components are the same as in Example 1.

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PUM

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Abstract

The invention relates to the technical field of emulsion coatings, specifically to a styrene-acrylic emulsion. The styrene-acrylic emulsion comprises the following components in parts by weight: 85 to105 parts of acrylate monomer, 55 to 75 parts of styrene monomer, 1 to 5 parts of butyl acrylate, 4 to 10 parts of a weather-proof material, 1 to 8 parts of sodium bicarbonate, 1 to 4 parts of a silane coupling agent, 2 to 3 parts of an emulsifier, 1 to 3 parts of an initiator and 150 to 300 parts of deionized water. A water-resistant material is prepared from the following components in parts byweight: 15 to 30 parts of sodium fatty alcohol polyethylene sulfonate, 10 to 20 parts of silicon dioxide powder, 5 to 15 parts of silicone amide, 2 to 10 parts of hexamethylenediamine and 2 to 5 parts of triethylene tetramine. The styrene-acrylic emulsion prepared according to a formula disclosed by the invention has good weather resistance, and is applied to the coating industry so as to allow acoating to also have good weather resistance.

Description

technical field [0001] The invention relates to the technical field of emulsion coatings, in particular to a styrene-acrylic emulsion. Background technique [0002] Styrene-acrylic emulsion (styrene-acrylate emulsion) is obtained by emulsion copolymerization of styrene and acrylate monomers. Styrene-acrylic emulsion is the most researched system in emulsion polymerization, and it is also one of the top ten non-crosslinked emulsions with important industrial application value in the world today. As an important class of intermediate chemical products, styrene-acrylic emulsion has a very wide range of uses. It is mainly used as architectural coatings, metal surface latex coatings, floor coatings, paper adhesives, adhesives, etc. [0003] The formula of the existing styrene-acrylic emulsion mainly includes four parts of styrene monomer, acrylate monomer, emulsifier and initiator. Although the styrene-acrylic emulsion prepared by this formula has good oil resistance, heat resis...

Claims

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Application Information

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IPC IPC(8): C08F220/10C08F212/08C08F220/18C08F2/30C09D133/04C09D7/61C09D7/63C09D7/65
CPCC08F2/30C08F220/10C08K2003/2241C08K2201/014C08L2205/035C09D133/08C09D7/61C09D7/63C09D7/65C08F212/08C08F220/1804C08L71/02C08L83/04C08L1/284C08K13/04C08K7/26C08K7/00C08K3/22C08K3/36C08K5/17C08K5/10C08K5/21
Inventor 吕书人
Owner 东联北方科技(北京)有限公司
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