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Two-component high-solid-content varnish and preparation method thereof

A high solid content, two-component technology, applied in polyester coatings, coatings, etc., can solve problems such as fire, human health hazards, and environmental pollution, and achieve the effects of improving efficiency, saving man-hours, and light color

Inactive Publication Date: 2017-02-22
江苏足迹涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional coatings are mostly low-solid solvent-based, containing a large amount of organic solvents, and many organic solvents need to be added to dilute them when used. These solvents evaporate into the atmosphere during construction and drying of the paint film, which is harmful to human health and pollutes the environment. fire hazard

Method used

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  • Two-component high-solid-content varnish and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The weight components of the high solid varnish in this example: 65 parts of resin, 0.3 part of defoamer, 0.4 part of leveling agent, 0.1 part of drier, 1 part of light stabilizer, 1 part of light absorber, and 20 parts of organic solvent.

[0034] The preparation method of the coating part is as follows:

[0035] (1) Add 65 parts of resin into a clean container and stir under medium and high shear;

[0036] (2) While stirring, add 0.3 parts of defoamer, 0.4 parts of leveling agent, 0.1 part of drier, 1 part of light stabilizer, 1 part of light absorber, 20 parts of organic solvent, and stir evenly;

[0037] (3) After adding the materials, stir for 10-15 minutes under medium and high shear force;

[0038] (4) After the stirring is finished, let it stand and wait for the bubbles to disappear before use;

[0039] Preparation method of curing agent component: Mix 89 parts of curing agent and 11 parts of organic solvent in proportion, and stir evenly under low shear force...

Embodiment 2

[0042] The high-solid varnish weight components in this embodiment: 70 parts of resin, 0.6 parts of defoamer, 0.7 parts of leveling agent, 0.3 parts of drier, 1.5 parts of light stabilizer, 1.5 parts of light absorber, and 25 parts of organic solvent.

[0043] The preparation method of the coating part is as follows:

[0044] (1) Add 70 parts of resin into a clean container and stir under medium and high shear;

[0045] (2) While stirring, add 0.6 parts of defoamer, 0.7 parts of leveling agent, 0.3 parts of drier, 1.5 parts of light stabilizer, 1.5 parts of light absorber, 25 parts of organic solvent, and stir evenly;

[0046] (3) After adding the materials, stir for 10-15 minutes under medium and high shear force;

[0047] (4) After the stirring is finished, let it stand and wait for the bubbles to disappear before use;

[0048] Preparation method of curing agent component: Mix 89 parts of curing agent and 11 parts of organic solvent in proportion, and stir evenly under low...

Embodiment 3

[0051] The components by weight of the high solid varnish in this example are: 75 parts of resin, 1 part of defoamer, 1 part of leveling agent, 0.5 part of drier, 2 parts of light stabilizer, 2 parts of light absorber, and 30 parts of organic solvent.

[0052] The preparation method of the coating part is as follows:

[0053] (1) Add 75 parts of resin into a clean container and stir under medium and high shear;

[0054] (2) While stirring, add 1 part of defoamer, 1 part of leveling agent, 0.5 part of drier, 2 parts of light stabilizer, 2 parts of light absorber, 30 parts of organic solvent, and stir evenly;

[0055] (3) After adding the materials, stir for 10-15 minutes under medium and high shear force;

[0056] (4) After the stirring is finished, let it stand and wait for the bubbles to disappear before use;

[0057] Preparation method of curing agent component: Mix 89 parts of curing agent and 11 parts of organic solvent in proportion, and stir evenly under low shear forc...

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Abstract

The invention discloses two-component high-solid-content varnish and a preparation method thereof. A paint part is prepared from, by weight, 65-75 parts of resin, 0.3-1 part of a defoaming agent, 0.4-1 part of a levelling agent, 0.1-0.5 part of a drying promotor, 1-2 parts of a light stabilizer, 1-2 parts of a light absorber and 20-30 parts of a solvent; a curing agent part is prepared from 89 parts of a curing agent and 11 parts of a solvent. A varnish film formed by the varnish has the good appearance; compared with the prior art, the solid content is high, the spraying solid content reaches 60% or above, volatilization of the solvent is significantly reduced, and the plumpness of the varnish can be effectively improved.

Description

technical field [0001] The invention relates to a coating for automobiles, in particular to a two-component high-solid varnish and a preparation method thereof. Background technique [0002] Traditional coatings are mostly low-solid solvent-based, containing a large amount of organic solvents, and many organic solvents need to be added to dilute them when used. These solvents evaporate into the atmosphere during construction and drying of the paint film, which is harmful to human health and pollutes the environment. There is a risk of fire. According to statistics released by the National Bureau of Statistics, the total output of China's coatings in 2014 reached 16.48188 million tons, an increase of 7.87% year-on-year after adjustment. Compared with the 13,033,490 tons of total paint output in 2013, a new increase of 3,448,390 tons was added in 2014. Another record high. Based on the production in 2013, if low-solid oil-based paints are used, the total annual atmospheric ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00
CPCC09D167/00
Inventor 薛芳刘书巧刘萍李伟
Owner 江苏足迹涂料有限公司
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