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Water-like air-purifying oily polyurethane finishing paint and preparation method thereof

An oil-based polyurethane, deodorizing technology, applied in the field of coatings, can solve the problems of dizziness, inability to fully release, discomfort, etc., achieve the effect of good transparency, ensure drying speed and film permeability, and wide application space

Active Publication Date: 2013-05-01
东莞大宝化工制品有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the ordinary oil-based polyurethane paint is painted, the unreacted small molecular substances and solvents in the film-forming resin will remain in the paint film, which cannot be completely released for a long time, especially in a confined space. When odors and solvents accumulate to a certain concentration, people will feel uncomfortable or even dizzy when entering such a space

Method used

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  • Water-like air-purifying oily polyurethane finishing paint and preparation method thereof
  • Water-like air-purifying oily polyurethane finishing paint and preparation method thereof
  • Water-like air-purifying oily polyurethane finishing paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A kind of pure flavor soybean oil alkyd resin, is made up of the following materials calculated by weight:

[0046] 250 parts of high-purity soybean oil fatty acid, 450 parts of trimethylolpropane, 320 parts of phthalic anhydride, 330 parts of xylene and 148 parts of butyl acetate.

[0047] The method for preparing the net taste soybean oil alkyd resin is specifically prepared as follows:

[0048] First put the high-purity soybean oil fatty acid, trimethylolpropane, phthalic anhydride and 10% xylene into the reaction kettle, and feed nitrogen; then heat the materials in the reaction kettle to 170 ° C, and react for 1.5 hours; Then the temperature is raised to 200°C, and the temperature is kept until the acid value is ≤12 to obtain the reaction mixture; finally, the reaction mixture is lowered to normal temperature, and the remaining xylene and the amount of butyl acetate are added to the reaction mixture, and the preparation is uniform to obtain the of net-flavored soy...

Embodiment 2

[0065] A kind of pure flavor soybean oil alkyd resin, is made up of the following materials calculated by weight:

[0066] 300 parts of high-purity soybean oil fatty acid, 400 parts of trimethylolpropane, 380 parts of phthalic anhydride, 280 parts of xylene and 138 parts of butyl acetate.

[0067] The method for preparing the net taste soybean oil alkyd resin is specifically prepared as follows:

[0068] First put the amount of high-purity soybean oil fatty acid, trimethylolpropane, phthalic anhydride and 16% xylene into the reactor, and feed nitrogen; then heat the materials in the reactor to 190°C, and react for 0.8 hours; Then the temperature is raised to 250°C, and the temperature is kept until the acid value is ≤12 to obtain the reaction mixture; finally, the reaction mixture is lowered to normal temperature, and the remaining xylene and the amount of butyl acetate are added to the reaction mixture, and the preparation is uniform to obtain the of net-flavored soybean oil...

Embodiment 3

[0085] A kind of pure flavor soybean oil alkyd resin, is made up of the following materials calculated by weight:

[0086] 275 parts of high-purity soybean oil fatty acid, 433 parts of trimethylolpropane, 350 parts of phthalic anhydride, 300 parts of xylene and 140 parts of butyl acetate.

[0087] The method for preparing the net taste soybean oil alkyd resin is specifically prepared as follows:

[0088] First put the amount of high-purity soybean oil fatty acid, trimethylolpropane, phthalic anhydride and 14.3% xylene into the reactor, and feed nitrogen; then heat the materials in the reactor to 180°C and react for 1 hour; Then the temperature is raised to 220°C, and the temperature is kept until the acid value is ≤12 to obtain the reaction mixture; finally, the reaction mixture is lowered to normal temperature, and the remaining xylene and the amount of butyl acetate are added to the reaction mixture, and the preparation is uniform to obtain the of net-flavored soybean oil a...

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Abstract

The invention relates to the technical field of paint, particularly to water-like air-purifying oily polyurethane finishing paint and a preparation method thereof. The finishing paint comprises a component A, a component B and a diluent agent, wherein the component A comprises the substances in percentage by weight as follows: 35%-45% of an air-purifying polyester resin, 30%-35% of an air-purifying soybean oil alkyd resin, 10%-15% of an esters solvent, 1%-2% of a dispersing agent, 0.5%-1% of a defoaming agent, and the like; the component B comprises TDI (toluene diisocynate) tripolymer, HDI (Hexamethylene Diisocyanate) tripolymer and n-butyl acetate / ethyl ester; and each substance in the formula is added at different time and mixed under the control of different stirring revolutions, and the finished product is obtained. According to the invention, the air-purifying effect of a dry film is guaranteed, the drying speed and physical and chemical performances of paint film permeability and the like are also guaranteed, the problem of smell residue of ordinary polyurethane finishing paint is solved, and accordingly the water-like air-purifying oily polyurethane finishing paint has wide application space.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based odor-free oily polyurethane topcoat and a preparation method thereof. Background technique [0002] Polyurethane paint is polyurethane paint, which has strong paint film, full luster, strong adhesion, water resistance, wear resistance and corrosion resistance. It is widely used in high-grade wooden furniture and can also be used on metal surfaces. [0003] In the daily interior decoration and furniture industry, oil-based polyurethane coatings have become the dominant type because of their good construction and comprehensive physical properties. However, after the ordinary oil-based polyurethane paint is painted, the unreacted small molecular substances and solvents in the film-forming resin will remain in the paint film, which cannot be completely released for a long time, especially in a confined space. When odors and solvents accumulate to a certain concentrat...

Claims

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Application Information

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IPC IPC(8): C08G63/49C09D175/14
Inventor 陈贺生周卫平
Owner 东莞大宝化工制品有限公司
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