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Water-based wood white primer as well as preparation method and use method thereof

A technology of white primer and woodware, applied in the field of coatings, can solve the problems of unfavorable use of water-based wood white primer, high content of organic volatiles, and restrictions on effective promotion, etc., achieve excellent wetting and wrapping ability, promote water release, and quickly Polished effect

Active Publication Date: 2013-06-05
紫荆花制漆(成都)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the Chinese patent with application number 200610015020.1 discloses a special coating for high-density boards and its preparation method. Although the special coating for high-density boards provided by this patent has excellent weather resistance, adhesion and other paint film properties, it is solvent-based. Paint, a large amount of organic solvents, such as butyl acetate, cyclohexanone, etc., are added during the preparation process, resulting in a high content of organic volatiles, which is not conducive to the safety of use
Another example is that the Chinese patent application number 201010529886.0 discloses a water-based wood white primer for density board edge sealing and its preparation process. The purpose of sealing the edge section of the board after cutting is not a water-based white primer for large-area primer coating of MDF, nor is it conducive to the use of water-based wood white primer
[0004] In order to improve the adhesion effect and anti-cracking effect of water-based wood white primer during use, the Chinese patent application number 201110181664.9 discloses a water-based one-component white primer and its preparation method. The patent discloses a water-based One-component white primer, using polyacrylic acid modified polyurethane and water-based polyurethane dispersion through its own chemical cross-linking reaction, has solvent-based performance, is also environmentally friendly, low-carbon, and can solve the problem of conventional water-based paints and other water-based systems. Water-based one-component white primer with poor compatibility and other problems
However, the white primer disclosed in this patent is not suitable for MDF coating and the use with solvent-based topcoats, which restricts its effective promotion.

Method used

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  • Water-based wood white primer as well as preparation method and use method thereof
  • Water-based wood white primer as well as preparation method and use method thereof
  • Water-based wood white primer as well as preparation method and use method thereof

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preparation example Construction

[0067] The invention provides a kind of preparation method of water-based white primer, comprising the following steps:

[0068] a) uniformly mixing the water-based resin with the defoamer and the wetting and dispersing agent to obtain the first material;

[0069] b) adding titanium dioxide, talcum powder and heavy calcium to the first material, and then adding a thickener to it after stirring at a high speed to obtain the second material;

[0070] c) Mix the second material with film-forming aids, thickeners, substrate wetting agents, bactericidal and antifungal agents, and water, and adjust the viscosity of the obtained material to 90KU-100KU to obtain a water-based wood white primer .

[0071] In the invention, the water-based resin, the defoamer and the wetting and dispersing agent are firstly mixed, and the first material is obtained after uniform mixing. In the invention, the water-based resin is placed in the dispersion tank first, and the defoamer and the wetting and...

Embodiment 1

[0101] In terms of weight percentage, 25wt% of the brand name NeoCryl A-639 and 10wt% of the brand name NeoRez R-2005 were added to the cylinder, stirred evenly at a speed of 400 rpm, and then poured into it at the above stirring speed. Add 0.3wt% of the product with the grade of TEGO810 and 1wt% of the product with the grade of TEGO752W, and stir evenly at the above stirring speed;

[0102] At the above stirring speed, add 5wt% of titanium dioxide of R996 grade, 12wt% of talc powder of TP1250 and 38wt% of heavy calcium of CC800 into the cylinder, and add 0.32wt% of grade It is a PU40W thickener, and the obtained material is dispersed for 15 minutes at a speed of 1100 rpm until the fineness of the scraper is less than 45 μm;

[0103] At a speed of 800 rpm, add 2.8wt% of a product with a grade of DPnB, 2.2wt% of a product with a grade of DPM, 0.08wt% of a thickener with a grade of PU40W to the obtained material with a fineness of less than 45 μm, 0.3wt% grade is the product of...

Embodiment 2

[0105] In terms of weight percentage, add 35w% of the product of ALBERDINK2714VP into the cylinder, stir evenly at a speed of 500 rpm, and then add 0.2wt% of the product of TEGO810 and 1wt% of the product of TEGO810 at the above stirring speed. TEGO752W products, and stir evenly at the above stirring speed;

[0106] At the above stirring speed, slowly add 5wt% of titanium dioxide with grade R996, 18wt% of talcum powder with grade TP1250 and 32wt% heavy calcium with grade CC800 into the tank for 1.5 minutes, and continue to add 0.48 The wt% grade is a thickener of PU40W, and the obtained material is dispersed for 15 minutes at a speed of 1150 rpm, until the scraper fineness of the material is less than 45 μm;

[0107] At a speed of 900 rpm, add 3wt% of a product with a grade of DPnB, 2wt% of a product with a grade of DPM, 0.12wt% of a thickener with a grade of PU40W, and 0.3wt% to the obtained material with a fineness of less than 45 μm. % grade is the product of TEGO270, 0.2w...

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Abstract

The invention relates to a water-based wood white primer as well as a preparation method and a use method thereof. The water-based wood white primer provided by the invention comprises the following components by weight: 15-35wt% of water-based resin, 0.2-0.6wt% of a defoaming agent, 0.5-1.5wt% of a wetting dispersant, 5-15wt% of titanium dioxide, 5-20wt% of talcum powder, 15-40wt% of coarse whiting, 0.2-0.8wt% of a thickening agent, 2-7wt% of a film-forming auxiliary agent, 0.1-0.4wt% of a substrate wetting agent, 0.1-0.4wt% of biocide mildewcide and 2-10wt% of water. The water-based wood white primer provided by the invention can be used together with solvent-based finishing paint, does not generate adverse film-painting defects, such as lifting, collapse and foaming adhesion, and has very low volatile content of VOC (Volatile Organic Compounds) and high value of environmental protection.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based wood white primer and a preparation method and application method thereof. Background technique [0002] Water-based wood lacquers have developed rapidly in recent years. With the continuous development of resin synthesis technology, the performance of water-based wood lacquers has also improved. Density board, also known as fiberboard, is one of the boards commonly used in the furniture industry due to its easy processing, non-deformation, and low price. Due to the high-pressure compression molding, the loose surface of the density board has a large absorption capacity for water-based wood paint. It is often necessary to use multiple coatings or fill with various filling soils to solve its flatness and decorative properties, resulting in a large amount of paint consumption. , high cost and troublesome operation. [0003] In the prior art, in order to solve the a...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D175/04C09D175/14C09D5/14
Inventor 郝雁飞王莹莹周米米汪盛藻陈松旭陈艳雄沈明月
Owner 紫荆花制漆(成都)有限公司
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