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A kind of environment-friendly high-solid varnish and preparation method thereof

A high-solids, environmentally friendly technology, applied in coatings and other directions, can solve the problems of low solids, air pollution, and low varnish fullness, and achieve the effects of solving inventory pressure, improving fullness, and easy to use.

Inactive Publication Date: 2011-12-14
DONGLAI COATING TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The car repair varnish sold on the market now has a low solid content, and the spraying solid content is 45±3%. The solvent accounts for a large part of it. During the use of the varnish, the solvent volatilizes and causes air pollution. The latest European environmental protection standards, VOC emission is ≤420g / L; low solid content, low fullness of varnish

Method used

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  • A kind of environment-friendly high-solid varnish and preparation method thereof
  • A kind of environment-friendly high-solid varnish and preparation method thereof
  • A kind of environment-friendly high-solid varnish and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Component A

[0040]

[0041] Add resin, solvent a, defoamer, leveling agent, drier, light stabilizer, and light absorber into the tank according to the formula requirements, stir at a speed of 800-1200 rpm on a high-speed disperser, and keep the temperature at 30-45°C, the time is 20-30 minutes, check the cleanliness of the varnish, there are no obvious particles, the viscosity is tested with 4 cups, adjusted to the range of 60-90 seconds, and filtered to obtain component A.

[0042] Component B

[0043]

[0044]

[0045] According to the formula requirements, add the purchased curing agent and solvent b into the tank, stir on a high-speed disperser at a speed of 800-1200 rpm, keep the temperature at 30-45°C, and take 20-30 minutes to prepare the curing agent. Check the cleanliness of the curing agent, if there are no obvious particles, filter to obtain component B.

[0046] Mix components A and B in a volume ratio of 2:1 to obtain an environmentally friendl...

Embodiment 2

[0048] Component A

[0049]

[0050] Add resin, solvent a, defoamer, leveling agent, drier, light stabilizer, and light absorber into the tank according to the formula requirements, stir at a speed of 800-1200 rpm on a high-speed disperser, and keep the temperature at 30-45°C, the time is 20-30 minutes, check the cleanliness of the varnish, there are no obvious particles, the viscosity is tested with 4 cups, adjusted to the range of 60-90 seconds, and filtered to obtain component A.

[0051] Component B

[0052]

[0053] According to the formula requirements, add the purchased curing agent and solvent b into the tank, stir on a high-speed disperser at a speed of 800-1200 rpm, keep the temperature at 30-45°C, and take 20-30 minutes to prepare the curing agent. Check the cleanliness of the curing agent, if there are no obvious particles, filter to obtain component B.

[0054] Mix components A and B in a volume ratio of 2:1 to obtain an environmentally friendly high-solid...

Embodiment 3

[0056] Component A

[0057]

[0058]

[0059] Add resin, solvent a, defoamer, leveling agent, drier, light stabilizer, and light absorber into the tank according to the formula requirements, stir at a speed of 800-1200 rpm on a high-speed disperser, and keep the temperature at 30-45°C, the time is 20-30 minutes, check the cleanliness of the varnish, there are no obvious particles, the viscosity is tested with 4 cups, adjusted to the range of 60-90 seconds, and filtered to obtain component A.

[0060] Component B

[0061]

[0062] According to the formula requirements, add the purchased curing agent and solvent b into the tank, stir on a high-speed disperser at a speed of 800-1200 rpm, keep the temperature at 30-45°C, and take 20-30 minutes to prepare the curing agent. Check the cleanliness of the curing agent, if there are no obvious particles, filter to obtain component B.

[0063] Mix components A and B in a volume ratio of 2:1 to obtain an environmentally friendl...

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Abstract

The invention relates to an environment-friendly high-solid varnish and a preparation method thereof. The varnish is composed of component A and component B mixed at a volume ratio of 2:1, and component A is composed of the following components and their contents in parts by weight: resin 75-80, solvent a16.55-23.2, defoamer 0.1-0.5, leveling agent 0.1-0.15, drier 0.4-0.8, light stabilizer 0.5-1, light absorber 0.5-1; component B consists of The curing agent and the solvent b are formed in a weight ratio of 61.5-65:35-38.5. Compared with the prior art, the invention has high solid content, the solid content of spraying can reach more than 58%, greatly reduces the volatilization of solvent, effectively improves the plumpness of varnish, and has low cost.

Description

technical field [0001] The invention relates to a varnish and a preparation method thereof, in particular to an environment-friendly high-solid varnish and a preparation method thereof. Background technique [0002] The car repair varnish sold on the market now has a low solid content, and the spraying solid content is 45±3%. The solvent accounts for a large part of it. During the use of the varnish, the solvent volatilizes and causes air pollution. The latest European environmental protection standards, The VOC emission is ≤420g / L; the solid content is low, and the fullness of the varnish is low. Contents of the invention [0003] The object of the present invention is to provide a kind of environment-friendly high-solid varnish with low cost and a preparation method thereof in order to overcome the above-mentioned defects in the prior art. [0004] The purpose of the present invention can be achieved through the following technical solutions: [0005] An environmentall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/12
Inventor 朱忠敏韶正伟
Owner DONGLAI COATING TECH SHANGHAI
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