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Low VOC waterborne polyurethane floor paint and preparation method thereof

A water-based polyurethane and floor coating technology, applied in the direction of polyurea/polyurethane coatings, anti-corrosion coatings, coatings, etc., can solve the problems of unsafe, high VOC content, not environmental protection, etc., and achieve excellent performance, low VOC, resistance to The effect of acid and alkali resistance to chemical corrosion

Inactive Publication Date: 2018-12-11
NIPPON PAINT GUANGZHOU
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The successful development of this product can solve the problems of high VOC content, non-environmental protection and unsafety of solvent-based polyurethane floor decoration materials

Method used

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  • Low VOC waterborne polyurethane floor paint and preparation method thereof
  • Low VOC waterborne polyurethane floor paint and preparation method thereof

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Effect test

Embodiment 1

[0034] The preparation method of low VOC waterborne polyurethane floor coating of the present invention, it may further comprise the steps:

[0035] A pre-mixing stage: Add pure water, start the disperser, adjust the speed to 500r / min, add wetting dispersant, and pH regulator, stir for 3 minutes, then add thickener, stir for 3 minutes, and confirm that the solution is slurry Finally, adjust the rotating speed to 1200r / min, and then add the pigment rutile titanium dioxide (preferably imported rutile titanium dioxide R706, Table 1 takes imported rutile titanium dioxide R706 as an example), and under the condition that the powder does not accumulate, Adjust the rotation speed to 1500r / min, disperse at high speed for 15 minutes, take a sample and add the emulsion to test the fineness, when the particle size is below 50μm, it can be thinned;

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Abstract

A low VOC waterborne polyurethane floor paint and a preparation method thereof disclosed by the invention, the paint comprises pure water, self-crosslinking waterborne polyurethane emulsion, a polysiloxane defoamer, a wetting and dispersing agent, a multifunctional auxiliary agent, pigment, a thickener, a preservative and an anti-mold agent. The waterborne polyurethane emulsion synthesized by a self-crosslinking method is a film-forming substance, which can form a film at normal temperature without adding organic solvents such as dodecyl alcohol ester, propylene glycol and ethylene glycol, andfluorocarbon surfactant is added at the same time to finally produce a waterborne low VOC polyurethane floor coating with high adhesion, high impact resistance and long-lasting resistance to artificial aging, which has high environmental performance and low requirements on the drying degree of the substrate, which makes the construction tool be directly cleaned with water, and makes the decoration material preparation and construction operation safe and convenient. In addition, the paint has the advantages of no combustion, no explosion, safeness, convenient storage and transportation. The product can solve the problems of high VOC content, no environmental protection and unsafety of solvent-based polyurethane floor decoration materials.

Description

Technical field: [0001] The invention relates to the field of paint preparation, in particular to a low-VOC waterborne polyurethane floor paint and a preparation method thereof. Background technique: [0002] The traditional decorative materials at home and abroad are mainly solvent-based decorative materials, especially in the Chinese floor market, solvent-based decorative materials account for 80% of the proportion, and mainly polyurethane coatings are the main decorative materials. Floor coatings are coatings applied to non-wooden floors such as cement bases, and belong to the category of floor coatings. According to the classification of film-forming substances, floor coatings can be divided into: epoxy floor coatings, polyurethane floor coatings, sprayed polyurea elastomer floor coatings and other floor coatings. The application range of traditional epoxy floor decoration materials is very limited, so more and more people start to use polyurethane floor decoration mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/61C09D7/63C09D7/65C09D5/08
CPCC08K2003/2241C08L2205/035C09D5/08C09D175/04C09D7/61C09D7/63C09D7/65C08L83/04C08L33/02C08L83/12C08K13/02C08K5/17C08K3/22C08K5/47
Inventor 黄理荣熊绍泊向慧周复荣方明华陈海燕罗帝金
Owner NIPPON PAINT GUANGZHOU
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