Acrylic Emulsion for Damping Coatings

A technology of acrylic emulsion and damping paint, which is applied in the direction of coating, etc., can solve the problems of thickening of paint, unstable paint performance, salt spray resistance and corrosion resistance, and achieve the effect of increasing water retention and storage stability

Active Publication Date: 2019-03-01
郑州安邦达水性材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, both traditional damping coatings and water-based damping coatings need to add plasticizers as additives. The addition of a large amount of plasticizers will cause thickening of the coating in the later stage, resulting in unstable performance of the coating product, and salt spray and corrosion resistance. greatly affected

Method used

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  • Acrylic Emulsion for Damping Coatings
  • Acrylic Emulsion for Damping Coatings
  • Acrylic Emulsion for Damping Coatings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An acrylic emulsion for damping paint, calculated in parts by weight, including the following raw materials:

[0026] 160 parts of butyl acrylate, 100 parts of styrene, 40 parts of methyl methacrylate, 117 parts of α-ethylhexyl acrylate, 12 parts of methacrylic acid, 9 parts of ammonium acrylate, 15 parts of acrylonitrile, 422 parts of water, 1.7 parts of ammonium sulfate, 1.8 parts of oxidation-reduction initiator system, 2.5 parts of pH adjuster, 0.7 parts of emulsifier and 1.5 parts of chloromethyl isothiazolinone. Among them, the oxidation-reduction initiator system is composed of 0.8 part of inorganic reducing agent and 1 part of oxidizing agent, the oxidizing agent is tert-butyl hydroperoxide, and the inorganic reducing agent is sodium formaldehyde sulfoxylate.

[0027] Preparation:

[0028] It includes the following steps:

[0029] 1) Take 342 parts of water into the reactor, add 2.5 parts of pH adjuster and raise the temperature to 80°C, use 12 parts of water to dissol...

Embodiment 2

[0034] An acrylic emulsion for damping paint, calculated in parts by weight, including the following raw materials:

[0035] 150 parts of butyl acrylate, 90 parts of styrene, 35 parts of methyl methacrylate, 112 parts of α-ethylhexyl acrylate, 14 parts of methacrylic acid, 11 parts of ammonium acrylate, 17 parts of acrylonitrile, 390 parts of water, 1.2 parts of potassium sulfate, 1.4 parts of oxidation-reduction initiator system, 3 parts of pH adjuster, 0.5 parts of emulsifier and 2 parts of chloromethyl isothiazolinone, among which the oxidation-reduction initiator system consists of 0.6 parts of inorganic reducing agent and It is composed of 0.8 parts of oxidizing agent, the oxidizing agent is tert-butyl hydrogen peroxide, and the inorganic reducing agent is acetone sodium bisulfite.

[0036] The preparation method includes the following steps:

[0037] 1) Take 330 parts of water into the reactor, add 3 parts of pH adjuster and raise the temperature to 78℃, use 10 parts of water ...

Embodiment 3

[0042] An acrylic emulsion for damping paint, calculated in parts by weight, including the following raw materials:

[0043] 170 parts of butyl acrylate, 110 parts of styrene, 45 parts of methyl methacrylate, 122 parts of α-ethylhexyl acrylate, 10 parts of methacrylic acid, 8 parts of ammonium acrylate, 13 parts of acrylonitrile, 450 parts of water, 2.2 parts of sodium sulfate, 2.2 parts of oxidation-reduction initiator system, 4 parts of pH adjuster, 1 part of emulsifier and 1 part of chloromethyl isothiazolinone, of which the oxidation-reduction initiator system consists of 1 part of inorganic reducing agent and It is composed of 1.2 parts of oxidizing agent. The oxidizing agent is tert-butyl hydroperoxide and the inorganic reducing agent is sodium bisulfite.

[0044] The preparation method includes the following steps:

[0045] 1) Take 350 parts of water into the reactor, add 4 parts of pH adjuster and raise the temperature to 82°C, use 15 parts of water to dissolve 1.6 parts of ...

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Abstract

An acrylic emulsion used for damping coating is provided. The acrylic emulsion comprises following raw materials by weight: 150-170 parts of butyl acrylate, 90-110 parts of styrene, 35-45 parts of methyl methacrylate, 112-122 parts of 2-ethylhexyl acrylate, 10-14 parts of methacrylic acid, 8-11 parts of ammonium acrylate, 13-17 parts of acrylonitrile, 390-450 parts of water, 1.2-2.2 parts of a thermal decomposition initiator, 1.4-2.2 parts of an oxidation-reduction initiator system, 3-4 parts of a pH regulating agent and 0.5-1 part of an emulsifier, wherein the oxidation-reduction initiator system includes 0.6-1 part of an inorganic reductant and 0.8-1.2 parts of an oxidant. The acrylic emulsion can replace a plasticizer, has a small particle size and a high solid content, and can improve product stability and enhance salt fog resistance and corrosion resistance when the acrylic emulsion is applied in place of a plasticizer for the field of damping coating.

Description

Technical field [0001] The invention belongs to the technical field of acrylic emulsions, and specifically relates to an acrylic emulsion for damping paint. Background technique [0002] Coating a layer of damping paint on metal structures, such as pipes, equipment shells, and metal sound barrier surfaces, is a commonly used effective measure to suppress structural vibration and reduce noise. However, the commonly used damping paint has poor thermal conductivity, which limits its application in transformers, reactors and other equipment that have high requirements for heat dissipation. [0003] Damping paint uses the viscoelastic energy of organic polymer materials to convert the mechanical vibration energy of sound waves into thermal energy and release it (ie, mechanical loss), so as to achieve the purpose of reducing amplitude, reducing vibration and suppressing noise. However, traditional damping coatings use organic solvents as the dispersion medium, and a large amount of toxi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F212/08C08F220/14C08F220/06C08F220/44C08F4/40C08F2/24C09D133/08
CPCC08F2/24C08F4/40C08F220/18C08F220/1804C09D133/08C08F212/08C08F220/14C08F220/1806C08F220/06C08F220/44
Inventor 孙天宝李晓东谢金彪
Owner 郑州安邦达水性材料有限公司
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