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Waterborne polyurethane industrial paint and preparation method thereof

A technology of water-based polyurethane and industrial paint, which is applied in paints containing biocide, anti-fouling/underwater coatings, coatings, etc., can solve the problems of low-temperature toughness, water resistance and pollution resistance of water-based polyurethane industrial paint films, and achieve Short curing time, fine and smooth paint film, suitable for popularization

Inactive Publication Date: 2020-12-15
湖北奥斯鸣环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide a water-based polyurethane industrial paint and a preparation method thereof, aiming at solving the following technical problems: how to improve the storage stability of the water-based polyurethane industrial paint and the low-temperature toughness of the formed paint film , water resistance and stain resistance

Method used

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  • Waterborne polyurethane industrial paint and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The invention provides a water-based polyurethane industrial paint. The preparation raw materials include the following components in parts by weight: 5 parts of polyether glycol, 3 parts of castor oil, 8 parts of isophorone diisocyanate (IPDI), dilauric acid 10 parts of dibutyltin (DBTDL), 0.5 parts of 1,4-butanediol (BDO), 1 part of dimethylol propionic acid (DMPA), 2 parts of epoxy resin, 1 part of trimethylolpropane (TMP), 25 parts of methyl methacrylate (MMA), 1 part of triethylamine, 1 part of ethylenediamine, 0.8 part of photoinitiator, 0.5 part of film-forming aid, 0.3 part of leveling agent, 0.3 part of thickener and appropriate amount of external agent, an appropriate amount of di-n-butylamine and a sufficient amount of dry nitrogen.

[0025] Further, the above-mentioned polyether glycol, castor oil, isophorone diisocyanate and dibutyltin dilaurate all need to undergo dehydration treatment.

[0026] Further, the above-mentioned triethylamine and ethylenediami...

Embodiment 2

[0036]The invention provides a waterborne polyurethane industrial paint. The raw materials for preparation include the following components in parts by weight: 7 parts of polyether glycol, 4 parts of castor oil, 12 parts of isophorone diisocyanate (IPDI), dilauric acid 12 parts of dibutyltin (DBTDL), 1 part of 1,4-butanediol (BDO), 2 parts of dimethylol propionic acid (DMPA), 3 parts of epoxy resin, 1.6 parts of trimethylolpropane (TMP), 34 parts of methyl methacrylate (MMA), 1.5 parts of triethylamine, 1.5 parts of ethylenediamine, 1 part of photoinitiator, 0.8 part of film-forming aid, 0.4 part of leveling agent, 0.5 part of thickener and appropriate amount of external agent, an appropriate amount of di-n-butylamine and a sufficient amount of dry nitrogen.

[0037] Further, the above-mentioned polyether glycol, castor oil, isophorone diisocyanate and dibutyltin dilaurate all need to undergo dehydration treatment.

[0038] Further, the above-mentioned triethylamine and ethyl...

Embodiment 3

[0048] The invention provides a water-based polyurethane industrial paint. The raw materials for preparation include the following components in parts by weight: 8 parts of polyether glycol, 5 parts of castor oil, 15 parts of isophorone diisocyanate (IPDI), dilauric acid 15 parts of dibutyltin (DBTDL), 1.5 parts of 1,4-butanediol (BDO), 3 parts of dimethylol propionic acid (DMPA), 4 parts of epoxy resin, 2 parts of trimethylolpropane (TMP), 40 parts of methyl methacrylate (MMA), 2 parts of triethylamine, 2 parts of ethylenediamine, 1.2 parts of photoinitiator, 1 part of film-forming aid, 0.6 part of leveling agent, 0.8 part of thickener and appropriate amount of external agent, an appropriate amount of di-n-butylamine and a sufficient amount of dry nitrogen.

[0049] Further, the above-mentioned polyether glycol, castor oil, isophorone diisocyanate and dibutyltin dilaurate all need to undergo dehydration treatment.

[0050] Further, the above-mentioned triethylamine and ethyl...

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Abstract

The invention discloses waterborne polyurethane industrial paint and a preparation method thereof, and particularly relates to the technical field of polyurethane paints. The waterborne polyurethane industrial paint is prepared from the following raw materials in parts by weight: 5 to 8 parts of polyether glycol, 3 to 5 parts of castor oil, 8 to 15 parts of isophorone diisocyanate, 10 to 15 partsof dibutyltin dilaurate, 0.5 to 1.5 parts of 1,4-butanediol, 1 to 3 parts of dimethylolpropionic acid, 2 to 4 parts of epoxy resin, 1 to 2 parts of trimethylolpropane, 25 to 40 parts of methyl methacrylate, 1 to 2 parts of triethylamine, 1 to 2 parts of ethylenediamine, 0.8 to 1.2 parts of a photoinitiator, 0.5 to 1 part of a coalescing agent, 0.3 to 0.6 part of a leveling agent, 0.3 to 0.8 part of a thickener, a proper amount of an external cross-linking agent, a proper amount of dibutylamine and sufficient dry nitrogen. And production is carried out through the processes of prepolymerization, emulsification, emulsion modification treatment and paint preparation. The waterborne polyurethane industrial paint is high in storage stability, a formed paint film is not prone to breakage, and the waterborne polyurethane industrial paint is high in water resistance and pollution resistance.

Description

technical field [0001] The invention relates to the technical field of polyurethane coatings, more specifically, the invention relates to a water-based polyurethane industrial paint and a preparation method thereof. Background technique [0002] Polyurethane (referred to as PU) is a polymer made of polyisocyanate and polyether polyol or polyester polyol or / and small molecule polyol, polyamine or water and other chain extenders or crosslinking agents. By changing the type and composition of raw materials, the shape and performance of the product can be greatly changed, and the final product from soft to hard can be obtained, which is widely used. Among them, polyurethane paint is a relatively common kind of paint. Its paint film is tough, full of luster, strong adhesion, water resistance, wear resistance, and corrosion resistance. It can be used as a finish paint for high-grade wood furniture or an antirust paint for metal surfaces , Widely used in various fields such as woo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C09D5/16C08F283/00C08F220/14
CPCC08F283/008C09D5/1662C09D151/08C08F220/14
Inventor 雷君
Owner 湖北奥斯鸣环保科技有限公司
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