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Preparation method of water-based fluorine-containing acrylic emulsion

A technology of acrylic emulsion and solid acrylic acid, which is applied in paints containing biocide, antifouling/underwater coatings, coatings, etc. Unsatisfactory coatings and other problems, to achieve the effects of good product performance stability, high gloss fullness, and excellent stain resistance

Inactive Publication Date: 2020-04-03
江苏智泰科技发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the architectural coatings prepared by commercially available water-based fluorine-containing acrylic resins are not satisfactory in some respects and fail to meet ideal expectations.
The main problems are as follows: First, the gloss and fullness of the paint film prepared by the current water-based fluorine-containing acrylic emulsion are not far behind those prepared by ordinary acrylic emulsion, which is not ideal.
Second, the stain resistance of the coatings prepared by the current water-based fluorine-containing acrylic emulsions is not far behind that of ordinary acrylic emulsions, and neither is ideal.
It is difficult to break through these shackles using conventional water-based acrylic synthesis methods

Method used

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Embodiment Construction

[0019] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0020] Embodiments of the present invention include: a method for preparing an aqueous fluorine-containing acrylic emulsion, comprising the following steps:

[0021] 1) Preparation of protective colloid solution: In a reaction kettle, use alkali-soluble solid acrylic resin, deionized water, reactive emulsifier and alkaline substances to mix and dissolve evenly at 60-70°C to make a concentration of 30%-70 % protective colloid solution, wherein the amount of reactive emulsifier is 0.5%-1% of the total mass of mixed monomers;

[0022] 2) Preparation of emulsion A: In the emulsification kettle, mix the reactive emulsifier, deionized water, mixed monomers, some fluorine monomers and initiators evenly...

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PUM

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Abstract

The invention discloses a preparation method of a water-based fluorine-containing acrylic emulsion, which comprises the following steps: 1) in a reaction kettle, uniformly mixing and dissolving alkali-soluble solid acrylic resin, deionized water, a reactive emulsifier and an alkaline substance at 60-70 DEG C to prepare a protective colloid solution; (2) preparing an emulsion A, and (3) preparing the water-based fluorine-containing acrylic emulsion. The water-based fluorine-containing acrylic emulsion has the characteristics of high glossiness and fullness, good water resistance and solvent resistance, high weather resistance, excellent stain resistance, outstanding hydrophobicity and lipophobicity, high film forming efficiency and good product performance stability.

Description

technical field [0001] The invention relates to a preparation method of aqueous fluorine-containing acrylic acid emulsion. Background technique [0002] With the continuous improvement of people's living standards, people's performance requirements for building exterior wall coatings are increasing. Water-based resins for exterior wall coatings are also slowly transitioning from higher-end water-based fluorocarbon resins such as styrene-acrylic emulsions and silicon-acrylic emulsions. At present, the resins used in the preparation of high-end water-based fluorocarbon coatings are mainly water-based fluorine-containing acrylic emulsions. Because of the high weather resistance, water and solvent resistance of fluororesins and the economy of water-based acrylic resins, water-based fluorine-containing acrylic Resins are increasingly favored in high-end exterior paints. [0003] At present, in the Chinese construction market, high-end water-based fluorocarbon coatings are also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F265/06C08F220/06C08F220/14C08F220/56C08F220/58C08F220/18C08F220/24C08F228/02C08F291/06C08F291/14C08F2/26C08F2/30C09D151/00C09D151/08C09D5/16
CPCC08F265/06C08F283/065C08F2/26C08F2/30C09D151/003C09D151/08C09D5/1662C08F220/06C08F220/14C08F220/56C08F220/58C08F220/18C08F220/24C08F228/02
Inventor 沈林张胜
Owner 江苏智泰科技发展有限公司
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