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High-extinction low-VOC (volatile organic compound) nano matte assistant and preparation method thereof

A technology of matting additives and nano-modifiers, applied in electrophoretic coatings, coatings, etc., can solve the problems of increasing the hardness and fullness of the paint film, poor scratch resistance and rough surface of the paint film, etc., to achieve Increase hardness and fullness, not easy to agglomerate, strong matting effect

Inactive Publication Date: 2019-06-04
江西省龙海化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a kind of high matting low VOC nano-matt auxiliary agent and preparation method thereof, this auxiliary agent aims at solving the poor transparency of the existing matte coating film, and also can affect The flatness of the coating of the original paint solution makes the surface of the paint film rough and the scratch resistance is poor. The film is transparent, and has strong matting properties, and at the same time, it does not affect the coating smoothness of the original paint solution, and increases the hardness and fullness of the paint film.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This specific embodiment is the formula of high-matting low-VOC nano-matt additives. The raw materials of the additives include: 1 part of vinyltriethoxysilane, 100 parts of nano-alumina, 1 part of citric acid, and 100 parts of deionized water .

[0022] The above formula is processed, and the processing steps are: according to the ratio of raw materials, adding nano-alumina and vinyltriethoxysilane into deionized water, and stirring at a speed of 1000RPM for pre-dispersion, and then using Grind it to the primary particle size of nanometer with a nano-sand mill, then add citric acid to it to adjust its pH to 6-7, and react for 0.5 hours at a speed of 1000RPM to obtain a nano-matte with high extinction and low VOC Auxiliary sample 1.

Embodiment 2

[0024] This specific embodiment is the formula of high-matting low-VOC nano-matt additives. The raw materials of the additives include: 10 parts of 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, nano-nitrided 80 parts of aluminum, 5 parts of acetic acid, 70 parts of deionized water.

[0025] The above-mentioned formula is processed, and its processing step is: according to raw material ratio, nano-aluminum nitride and 2-(3,4-epoxycyclohexyl) ethyl trimethoxysilane are added to deionized water, and Stir evenly at a speed of 800RPM for pre-dispersion, and then use a nano-sand mill to grind it to a nano-primary particle size, then add acetic acid to it to adjust its pH to 6-7, and react at a speed of 800RPM After 3 hours, the sample 2 of the nano matte additive with high matting property and low VOC was obtained.

Embodiment 3

[0027] This specific embodiment is the formula of high matting and low VOC nano-matt additives. The raw materials of the additives include: 20 parts of bis(acetylacetonate) ethoxy isopropoxy titanate, 50 parts of nano silicon dioxide, 10 parts of oxalic acid, 50 parts of deionized water.

[0028] The above-mentioned formula is processed, and its processing step is: according to raw material proportioning, nano-silica and bis(acetylacetonate group) ethoxy isopropoxy titanate are added to deionized water, and in rotating speed is 500RPM Stir evenly for pre-dispersion, and then use a nano sand mill to grind it to the nano-primary particle size, then add oxalic acid to it to adjust its pH value to 6-7, and react for 6 hours at a speed of 500RPM, that is A sample 3 of the nano matte additive with high matting property and low VOC was obtained.

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Abstract

The invention discloses a high-extinction low-VOC (volatile organic compound) nano matte assistant and a preparation method thereof, and the assistant is used for solving the problems that the existing matte paint film is poor in film transparency, and the coating flatness of an original paint liquid can be influenced, so that the paint film surface is rough, and poor in scratch resistance and mark brightening the like; the assistant comprises the following raw materials in parts by mass: 1-20 parts of a nano-modifier, 50-100 parts of nano-powder, 1-10 parts of a pH regulator and 50-100 partsof deionized water. The assistant is added into cathode electrophoretic resin to prepare matte paint, so that the film transparency of the matte paint can be improved, the extinction property is strong, the coating flatness of the original paint liquid cannot be influenced at the same time, and the hardness, fullness and the like of the paint film are improved.

Description

technical field [0001] The invention relates to the field of nano matting additives, in particular to a nano matting additive with high matting property and low VOC and a preparation method thereof. Background technique [0002] At present, with the improvement of people's living standards, everyone's requirements for life are getting higher and higher, and the external senses of things are also more and more fashionable. They are no longer limited to the level of simple usability. This change in aesthetic understanding, Take the surface decoration with matte touch as an example. This kind of emerging surface decoration products are becoming more and more popular among consumers. Nowadays, the matte resins that appear on the market are mainly made by adding matte additives, such as resins such as matte powder and micronized wax, but the matte coatings produced in this way have rough coating films, poor transparency, and are prone to scratches and bright spots. Marks, paint ...

Claims

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Application Information

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IPC IPC(8): C09D7/42C09D5/44
Inventor 巴于磊董清龙董洋孔令涛曾祥辉
Owner 江西省龙海化工有限公司
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