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White primer composition and preparation method thereof

A composition and primer technology, applied in primers, coatings, polyurea/polyurethane coatings, etc., can solve the problems of inconspicuous opening effect, uneven paint film surface, and insufficient texture layering, etc., to achieve color development Ideal, simple preparation process, obvious effect of opening effect

Inactive Publication Date: 2019-08-16
HEFEI KETIAN WATERBORNE TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defective of prior art, and one of purpose of the present invention is to provide a kind of white primer composition, is used to overcome when using water-based woodware white primer to do open process in the prior art process, paint film surface Not smooth enough, the opening effect is not obvious, and the texture layering is not enough

Method used

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  • White primer composition and preparation method thereof
  • White primer composition and preparation method thereof

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preparation example Construction

[0033] Another aspect of the present invention also provides a preparation method of the white primer composition, comprising the steps of: 1) adding the polyurethane resin at a stirring speed of 400-600r / min.

[0034] In step 1), the water-based polyurethane resin is added into a container, such as a reaction kettle, and the stirring is started. The stirring is, for example, 400r / min, 500r / min, 600r / min.

[0035] The preparation method of the white primer composition of the present invention also includes the step: 2) adding the titanium white slurry, the wetting agent, the penetrating agent, the film-forming aid, the thickener and the Add water and continue to stir to prepare the white primer composition.

[0036] In step 2), the titanium dioxide slurry is prepared, for example, in the manner described above:

[0037]a) Add the water, the pH regulator, the dispersant, the defoamer, and the titanium dioxide to a container, such as a reactor;

[0038] b) stirring and disper...

Embodiment 1

[0044] 1) Turn on the stirring speed of 400r / min, add 5g of water, 0.1g of AMP-95, 1g of BYK-190, 0.5g of Digo 902W, and 20g of titanium dioxide in the container, and increase the speed to 1200r / min for high-speed dispersion for 18min. A titanium white slurry was obtained, and its fineness was 15 μm after being tested by the scraper fineness meter.

[0045] 2) Weigh 40g of polyurethane resin and add it to the reaction kettle, turn on the stirring speed of 400r / min, and stir;

[0046] 3) In the reaction kettle, add 26.6g titanium white paste titanium white paste, 0.5g Digo 4100, 1g Siluoke 8141, 5g the DPM film-forming aid, 0.5g the Dow 2020 thickener and 26.4g of remaining water, and continued to stir for 30 minutes to prepare white primer composition 1, and the specific proportions are shown in Table 1.

Embodiment 2

[0048] 1) Turn on the stirring speed of 500r / min, add 5g of water, 0.1g of AMP-95, 1g of BYK-192, 0.5g of Digo 902W, and 20g of titanium dioxide in the container, and increase the speed to 1200r / min for high-speed dispersion for 15 minutes. A titanium white slurry was obtained, and its fineness was 15 μm after being tested by the scraper fineness meter.

[0049] 2) Weigh 45g of polyurethane resin and add it to the reaction kettle, and start stirring at a stirring speed of 400r / min;

[0050] 3) In the reaction kettle, add 26.6g titanium white paste titanium white paste, 0.5g Digo 4100, 1g Siluoke 8141, 5g the DPM film-forming aid, 0.5g the Dow 2020 thickener and 21.4g of remaining water, and continued to stir for 30 minutes to prepare white primer composition 2, and the specific proportions are shown in Table 1.

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Abstract

The invention provides a white primer composition and a preparation method. The white primer composition comprises the following ingredients (by weight): polyurethane resin, titanium dioxide slurry, awetting agent, an osmotic agent, a coalescing agent, a thickening agent and water, the sum of which is 100 wt%. The titanium dioxide slurry is obtained by stirring and dispersing water, a pH regulator, a dispersant, an antifoaming agent and titanium dioxide at the ratio of (5-10): (0.05-0.2): (0.5-2): (0.5-1): (15-25). The white primer composition provided by the invention is environmentally-friendly and nontoxic, has good perforation property to a waterborne woodenware base-material, highlights the texture of the base-material, and has an obvious effect of opening.

Description

technical field [0001] The invention relates to the field of paint preparation methods, and specifically discloses a white primer composition and a preparation method thereof. Background technique [0002] Because the water-based wood open white paint coating process has the pores of natural wood grain, highlights the texture, and is widely favored for environmental protection and health. Generally, the white primer is sprayed on the water-based wood substrate first, and the white primer is dried and polished. Spray white top coat. But, when using common woodware white primer to do the opening process at present, the surface of the paint film is not smooth enough, and the opening effect is not obvious, resulting in unsatisfactory product use effects. Therefore, need to develop a kind of white primer that meets market use. Contents of the invention [0003] The purpose of the present invention is to overcome the defective of prior art, and one of purpose of the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/00C09D7/61
CPCC08K2003/2241C09D5/002C09D175/04C09D7/61C08K3/22
Inventor 戴家兵荣光陈瑞金程世友
Owner HEFEI KETIAN WATERBORNE TECH CO LTD
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