A coating film former and its preparation method and application

A film-forming material and coating technology, which is applied in the direction of anti-corrosion coatings, coatings, pigment pastes, etc., can solve the problems of poor storage stability of coatings, low coating gloss, insufficient impact resistance, etc., and achieve gloss and impact resistance Good performance, simple preparation process, and strong coating workability

Active Publication Date: 2020-02-21
湖南智涂环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with oil-based coatings, water-based coatings still have problems such as poor storage stability, narrow application range, low coating gloss, and insufficient chemical resistance.
[0004] Epoxy resin is the main component of water-based coatings. In related technologies, epoxy resin coating films have the characteristics of excellent chemical resistance and high hardness, but there are disadvantages such as poor weather resistance and insufficient impact resistance of the paint film, and epoxy resin coatings Its water solubility is poor, so it is difficult to achieve the ideal water-based effect for the water-based paint prepared by it.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A paint film former, comprising the following components calculated in parts by weight:

[0031] 30 parts of epoxy resin, 1 part of epoxy phosphate resin, 40 parts of solvent, 2 parts of carboxyl-containing acrylic monomer, 6 parts of hydroxyl-containing acrylic monomer, 1 part of phosphate-containing acrylic monomer, 18 other acrylic monomers Parts, 2 parts of initiator.

[0032] Wherein, the epoxy equivalent of epoxy resin is 6000-8000, can choose one in bisphenol A type epoxy resin, bisphenol F type epoxy resin or bisphenol S type epoxy resin;

[0033] The solvent is an alcohol ether solvent, preferably at least one from n-butanol, propylene glycol methyl ether, propylene glycol methyl ether acetate, propylene glycol methyl ether propionate, dipropylene glycol methyl ether, ethylene glycol ethyl ether or diethylene glycol ethyl ether kind;

[0034] The carboxyl-containing acrylic acid monomer is preferably at least one of acrylic acid or methacrylic acid;

[0035]...

Embodiment 2

[0053] A paint film former, comprising the following components calculated in parts by weight:

[0054] 40 parts of epoxy resin, 1 part of epoxy phosphate resin, 45 parts of solvent, 2 parts of carboxyl-containing acrylic monomers, 6 parts of hydroxyl-containing acrylic monomers, 1 part of phosphate-containing acrylic monomers, and 15 parts of other acrylic monomers Parts, 2 parts of initiator.

[0055] Wherein, the epoxy equivalent of the epoxy resin is 6000-8000, and one of bisphenol A type epoxy resin, bisphenol F type epoxy resin or bisphenol S type epoxy resin can be selected;

[0056] The solvent is an alcohol ether solvent, preferably at least one from n-butanol, propylene glycol methyl ether, propylene glycol methyl ether acetate, propylene glycol methyl ether propionate, dipropylene glycol methyl ether, ethylene glycol ethyl ether or diethylene glycol ethyl ether kind;

[0057] The carboxyl-containing acrylic acid monomer is preferably at least one of acrylic acid o...

Embodiment 3

[0076] A paint film former, comprising the following components calculated in parts by weight:

[0077] 36 parts of epoxy resin, 2 parts of epoxy phosphate resin, 37 parts of solvent, 3 parts of carboxyl-containing acrylic monomer, 4 parts of hydroxyl-containing acrylic monomer, 2 parts of phosphate-containing acrylic monomer, 13 other acrylic monomers Parts, 3 parts of initiator.

[0078] Wherein, the epoxy equivalent of epoxy resin is 6000-8000, can choose one in bisphenol A type epoxy resin, bisphenol F type epoxy resin or bisphenol S type epoxy resin;

[0079] The solvent is an alcohol ether solvent, preferably at least one from n-butanol, propylene glycol methyl ether, propylene glycol methyl ether acetate, propylene glycol methyl ether propionate, dipropylene glycol methyl ether, ethylene glycol ethyl ether or diethylene glycol ethyl ether kind;

[0080] The carboxyl-containing acrylic acid monomer is preferably at least one of acrylic acid or methacrylic acid;

[008...

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Abstract

The invention discloses a coating film former. The coating film former comprises, by mass, 30-40 parts of epoxy resin, 1-3 parts of epoxy phosphate resin, 35-45 parts of solvent, 2-5 parts of carboxyl-containing acrylic monomer, 4-10 parts of hydroxyl-containing acrylic monomer, 1-3 parts of phosphate-containing acrylic monomer, 12-18 parts of other acrylic monomer and 1-4 parts of initiator, wherein the solvent is alcohol ether solvent. The coating film former is high in water solubility, and a film has excellent hardness, chemical resistance, weatherability, glossiness and impact resistance.The invention further discloses a preparation method and application of the coating film former.

Description

technical field [0001] The invention relates to the technical field of water-based coatings, in particular to a coating film-former and its preparation method and application. Background technique [0002] As people's awareness of environmental protection continues to increase, many countries have promulgated environmental regulations to control volatile organic compounds (VOCs), research and development of environmentally friendly coatings and coating technologies, and reduction of volatile organic compounds in coating production and construction have become The development trend of coating industry. [0003] Water-based coatings use water instead of organic solvents, which can greatly reduce the emission of VOCs from about 70% of oil-based paints to less than 20%, which can significantly improve the atmospheric environment. Therefore, water-based coatings have become the general trend. However, compared with oil-based paints, water-based paints still have problems such as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D151/08C09D5/08C09D17/00C08F283/10C08F220/20C08F220/18C08F220/14C08F230/02C08F212/12
CPCC08F283/10C09D5/08C09D17/001C09D151/08C08F212/12
Inventor 陈子路胡高锋朱双文
Owner 湖南智涂环保科技有限公司
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