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Wetting dispersant for water-based paint and preparation method of wetting dispersant

A technology for wetting and dispersing agents and water-based coatings, which is applied in the field of wetting and dispersing agents for water-based coatings and its preparation, can solve the problems of inconspicuous dispersion effects, and achieve the effects of improving dispersibility and improving tensile properties

Active Publication Date: 2022-06-07
GUANGDONG TAISHI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many dispersants produced on the existing market have no obvious dispersion effect

Method used

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  • Wetting dispersant for water-based paint and preparation method of wetting dispersant
  • Wetting dispersant for water-based paint and preparation method of wetting dispersant
  • Wetting dispersant for water-based paint and preparation method of wetting dispersant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A wetting and dispersing additive for waterborne coatings, comprising the following components:

[0028] The modified polymer dispersant with a mass fraction of 36% and the fatty acid diethanolamine with a mass fraction of 0.8%, and the rest are water.

[0029] A preparation method of wetting and dispersing agent for water-based paint, comprising the following steps:

[0030] The wetting and dispersing agent for water-washing paint can be obtained by stirring and mixing the modified polymer dispersant with a mass fraction of 36%, fatty acid diethanolamine with a mass fraction of 0.8%, and the rest of water.

[0031] Wherein, the preparation process of the modified polymer dispersant is as follows:

[0032] Put the polyoxyethylene ether molecular monomer with amino group in the reaction kettle, heat it to melt, then add the aqueous solution of the carboxylic acid monomer with sulfonic acid base prepared in advance to it, and simultaneously put in Na 2 S 2 O 8 Initiat...

Embodiment 2

[0034] A wetting and dispersing additive for waterborne coatings, comprising the following components:

[0035] The modified polymer dispersant with a mass fraction of 45% and the fatty acid diethanolamine with a mass fraction of 1.2%, and the rest are water.

[0036] A preparation method of wetting and dispersing agent for water-based paint, comprising the following steps:

[0037] The wetting and dispersing agent for water-wash paint can be obtained by stirring and mixing the modified polymer dispersant with a mass fraction of 45%, fatty acid diethanolamine with a mass fraction of 1.2%, and the rest of water.

[0038] Wherein, the preparation process of the modified polymer dispersant is as follows:

[0039] Put the polyoxyethylene ether molecular monomer with amino group in the reaction kettle, heat it to melt, then add the aqueous solution of the carboxylic acid monomer with sulfonic acid base prepared in advance to it, and simultaneously put in Na 2 S 2 O 8 Initiator,...

Embodiment 3

[0041] A wetting and dispersing additive for waterborne coatings, comprising the following components:

[0042] The modified polymer dispersant with a mass fraction of 56% and a fatty acid diethanolamine with a mass fraction of 1.5%, and the rest are water.

[0043] A preparation method of wetting and dispersing agent for water-based paint, comprising the following steps:

[0044] The wetting and dispersing agent for water-washed paint can be obtained by stirring and mixing the modified polymer dispersant with a mass fraction of 56%, fatty acid diethanolamine with a mass fraction of 1.5%, and the rest of water.

[0045] Wherein, the preparation process of the modified polymer dispersant is as follows:

[0046] Put the polyoxyethylene ether molecular monomer with amino group in the reaction kettle, heat it to melt, then add the aqueous solution of the carboxylic acid monomer with sulfonic acid base prepared in advance to it, and simultaneously put in Na 2 S 2 O 8 Initiator, c...

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Abstract

The invention discloses a wetting dispersant for water-based paint, which comprises the following components in percentage by mass: 36-56% of modified polymer dispersant, 0.8-1.5% of fatty acyl diethanol amine and the balance of water. The modified polymeric dispersant is synthesized by copolymerization between an unsaturated molecular monomer with amino and an unsaturated molecular monomer with sodium sulfonate, the two materials are compounded for use, the effect of improving the dispersity of the water-based paint is achieved, after the modified polymeric dispersant is added into the paint, the tensile property of the paint can be improved, and the service life of the paint is prolonged. In the application, the modified polymeric dispersant and the fatty acyl diethanol amine are not simply and physically fused, but positively and synergistically act and promote each other, so that the combined dispersant for the water-based paint, which is excellent in performance, can be obtained.

Description

technical field [0001] The present invention relates to the field of dispersants. More specifically, the present invention relates to a wetting and dispersing agent for aqueous coatings and a preparation method thereof. Background technique [0002] Due to the outstanding advantages of water-based coatings, in recent years, the application of water-based coatings in the field of coatings has been expanding and has replaced many conventional solvent-based coatings. With the stricter restrictions on volatile organic compounds and toxic substances in various countries, as well as the optimization of resins and formulations and the development of applicable additives, it can be expected that water-based coatings will occupy market shares in metal anti-rust coatings, home decoration coatings, and architectural coatings. It will continue to improve and gradually occupy the market of solvent-based coatings. In water-based coatings, latex coatings have an absolute advantage. In ad...

Claims

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Application Information

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IPC IPC(8): C09D7/65C09D7/63C08F283/06C08F228/02C09D125/14
CPCC09D7/65C09D7/63C08F283/06C09D125/14C08F228/02C08L51/08C08K5/17
Inventor 邓思荣邓景峰
Owner GUANGDONG TAISHI IND CO LTD
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