Matte varnish convenient for UV electrostatic spraying and preparation method of matte varnish

A technology of electrostatic spraying and topcoat, applied in the direction of coating, polyurea/polyurethane coating, etc., can solve problems such as poor after-sales service, unsuitable topcoat, lack of

Inactive Publication Date: 2020-10-23
HUIZHOU CHANGRUNFA PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing paints for electrostatic spraying in China are mostly primers. The resulting paint film is rough and uneven, and the decorative effect is poor.
Although there are topcoats suitable for electrostatic spraying in foreign countries, most of the foreign topcoats are added with conductive additives, which are expensive, poor after-sales service, and have high requirements for electrostatic spraying equipment, which cannot be well applied to domestic electrostatic spraying. Spray market

Method used

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  • Matte varnish convenient for UV electrostatic spraying and preparation method of matte varnish
  • Matte varnish convenient for UV electrostatic spraying and preparation method of matte varnish
  • Matte varnish convenient for UV electrostatic spraying and preparation method of matte varnish

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a kind of matte clear topcoat that is convenient to UV electrostatic spraying, and this matte clear topcoat is suitable for electrostatic spraying process, utilizes electrostatic spraying process to be able to spray this matte clear topcoat on the six sides of the product at one time. On the processing surface, the construction difficulty of the matte clear topcoat is greatly simplified, which facilitates the improvement of construction efficiency. The entire construction process is less dependent on labor, which reduces the introduction of human errors. The obtained paint film has high flatness, low odor and environmental protection. .

[0026] This embodiment provides a kind of matte clear finish paint that is convenient to UV electrostatic spraying, and this matte clear finish paint is calculated in parts by weight, and its component comprises:

[0027]

[0028]

[0029] In this embodiment, the matte clear finish that is convenient for ...

Embodiment 2

[0036] This embodiment provides a kind of matte clear finish paint that is convenient to UV electrostatic spraying, and this matte clear finish paint is calculated in parts by weight, and its component comprises:

[0037]

[0038]

[0039] In this embodiment, the matte clear finish that is convenient for electrostatic spraying is specifically prepared by the following method:

[0040] a. First weigh 20 parts of urethane acrylate resin and put it into the reaction kettle, then weigh 1 part of wetting agent, 1 part of defoamer, and 0.5 parts of anti-settling Auxiliary agent, 12 parts of cellulose acetate butyrate, 25 parts of nitrocellulose solution, 1 part of leveling agent, 2 parts of photoinitiator and 10 parts of triethoxylated trimethylolpropane triacrylate ( 3-EO-TMPTA) was added to the reactor and dispersed for 10 minutes;

[0041] b. Then increase the stirring speed of the reactor to 1200rpm, and weigh 3 parts of the dummy powder and continue to put it into the re...

Embodiment 3

[0045] This embodiment provides a kind of matte clear finish paint that is convenient to UV electrostatic spraying, and this matte clear finish paint is calculated in parts by weight, and its component comprises:

[0046]

[0047] In this embodiment, the matte clear finish that is convenient for electrostatic spraying is specifically prepared by the following method:

[0048] a. First weigh 17 parts of polyurethane acrylate resin and put it into the reaction kettle, then weigh 0.6 parts of wetting agent, 0.55 parts of defoamer, and 0.3 parts of anti-settling Auxiliary agent, 10 parts of cellulose acetate butyrate, 23.5 parts of nitrocellulose liquid, 0.6 part of leveling agent, 1.5 parts of photoinitiator and 9 parts of triethoxylated trimethylolpropane triacrylate ( 3-EO-TMPTA) was added to the reactor and dispersed for 9 minutes;

[0049] b. Then increase the stirring speed of the reactor to 1100rpm, and weigh 2.3 parts of the dummy powder and continue to put it into the...

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Abstract

The invention relates to matte varnish convenient for UV electrostatic spraying. The matte varnish comprises the following components, by weight: 15 to 20 parts of polyurethane acrylate resin; 8 to 10parts of 3-EO-TMPTA; 0.05 to 1 part of a wetting agent, 0.05 to 1 part of an antifoaming agent, 0.1 to 0.5 part of an anti-settling auxiliary agent, 1 to 2 parts of a photoinitiator, 1.5 to 3 parts of a matt powder, 8 to 12 parts of cellulose acetate butyrate, 22 to 25 parts of nitrocotton liquid, 0.1 to 1 part of a leveling agent and 30 to 35 parts of an organic solvent. The matte varnish can besuitable for an electrostatic spraying process, the construction difficulty of the matte varnish is greatly simplified, and the construction efficiency is conveniently improved. Moreover, the matte varnish is beneficial to realizing mechanical construction, reducing dependence on manpower and effectively avoiding introduction of personal errors, and the prepared varnish film is good in performance, low in odor and more environment-friendly.

Description

technical field [0001] The invention relates to the technical field of light-curing coatings, in particular to a matte clear finish convenient for UV electrostatic spraying and a preparation method thereof. Background technique [0002] With the development of coating technology, users have higher and higher requirements for the quality of paint coatings. However, traditional paint construction methods have gradually Can not meet the needs of users. In order to overcome the above-mentioned defects in the traditional paint construction method and achieve the purpose of improving the coating quality, people have developed an electrostatic spraying process in recent years. The electrostatic spraying process is a spraying method that uses a high-voltage electrostatic electric field to make the negatively charged paint particles move in the direction opposite to the electric field, and adsorb the paint particles on the surface of the workpiece. Compared with the traditional spr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D101/18C09D175/14C09D101/14C09D7/61C09D7/45C09D7/47
CPCC08L2205/035C09D101/18C09D7/45C09D7/47C09D7/61C08L75/14C08L1/14C08L83/04C08K7/26C08K3/36C08L77/00
Inventor 敬小松郑建鹏戴超
Owner HUIZHOU CHANGRUNFA PAINT
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