Water-based clear topcoat with high solid content and preparation method thereof

A clear topcoat, water-based technology, used in biocide-containing paints, antifouling/underwater coatings, devices for coating liquids on surfaces, etc. and other problems, to achieve the effect of reducing the number of coating times, reducing the cost of coating, and excellent antibacterial and antifungal properties.

Active Publication Date: 2014-06-25
濮阳展辰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first two are solvent-based coatings, which do not meet the national advocacy of green and environmental protection. However, most of the conventional water-based wood coatings on the market are suitable for furniture coating. The water-based wood coatings used for outdoor coating generally have high VOC content and are weather-resistant. Therefore, it is necessary to develop a high-solid weather-resistant water-based wood clear finish with low VOC content

Method used

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  • Water-based clear topcoat with high solid content and preparation method thereof
  • Water-based clear topcoat with high solid content and preparation method thereof
  • Water-based clear topcoat with high solid content and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides a high solid clear topcoat.

[0041] 1. Composition

[0042]

[0043] 2. Preparation method

[0044] 1) first put 7461 was weighed into the dispersing tank and started stirring to obtain mixture 1;

[0045] 2) Weigh the MV and A21d, and add the mixture 1 in the dispersion tank under stirring to obtain the mixture 2;

[0046] 3) Weigh tego901w, tego825, TPnB, and Tego760w into a clean container, mix well and add to the dispersion cylinder mixture 2 under stirring, then add Byk272, disperse at 1300 rpm for 15 minutes at high speed, and obtain mixture 3 ;

[0047] 4) Add Cgl333, Byk539, Fs204e and deionized water to mixture 3, and stir at a medium speed of 900 rpm for 10 minutes to obtain mixture 4;

[0048] 5) Add Amp-95, Byk8421 and the remaining deionized water to the mixture 4, and stir well to obtain a clear topcoat.

[0049] 3. Application: larch wood fence in villa garden: first, polish the larch wood fence that needs to be protect...

Embodiment 2

[0051] This embodiment provides a high solid clear topcoat. 1. Composition

[0052]

[0053] 2. Preparation method

[0054] 1) first put 7461 was weighed into the dispersing tank and started stirring to obtain mixture 1;

[0055] 2) Weigh Parmetol A28 and Preventol A14-D, and add them to the dispersion tank mixture 2 under stirring;

[0056] 3) Weigh BYK-028, BYK-024, PPH, and Tego715w into a clean container, mix well and add to the dispersion cylinder mixture 2 under stirring state, then add Acumist3105B, and disperse at 1200 rpm for 15 minutes at high speed , to obtain mixture 3;

[0057] 4) Add nanobyk3820, Emulsion32535, Surfynol104E and deionized water were stirred at a medium speed of 850 rpm for 10 minutes to obtain mixture 4;

[0058] 5) Add Amp-95, RHEOLATE299 and the remaining deionized water to mixture 4, stir well; send for inspection.

[0059] 3. Application:

[0060] Pure solid wood windows of catalpa wood: first, polish the pure solid wood window fr...

Embodiment 3

[0062] This embodiment provides a high solid clear topcoat.

[0063] 1. Composition

[0064]

[0065]

[0066] 2. Preparation method

[0067] 1) first put 7461 was weighed into the dispersing tank and started stirring to obtain mixture 1;

[0068] 2) Weigh Mv and Preventol A21-D, and add it into the dispersion tank mixture 1 under stirring to obtain mixture 2;

[0069] 3) Weigh Tego901w, Tego825, PPH, and Tego740w into a clean container, mix well and add to the dispersion cylinder mixture 2 under stirring, then add Byk272, disperse at 1400 rpm for 15 minutes at high speed, and obtain mixture 3 ;

[0070] 4) Add Cgl333, Byk539, Byk346 and deionized water to mixture 3, and stir at a medium speed of 950 rpm for 10 minutes to obtain mixture 4;

[0071] 5) Add Amp-95, Byk8421 and the remaining deionized water to mixture 4, and add TOLYTINT red3146, TOLYTINT yellow1016 and TOLYTINT black3147 for coloring, and stir evenly to obtain a clear topcoat.

[0072] 3. Applicatio...

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Abstract

The invention relates to a water-based clear topcoat with high solid content, which is prepared from the following components in parts by weight: 750-900 parts of water-based resin, 1-4 parts of bactericide, 3-8 parts of dry film preservatives, 5-25 parts of coalescing agents, 5-15 parts of defoamer, 5-20 parts of base material wetting agents, 2-5 parts of pH adjuster, 10-35 parts of anti-sagging agents, 10-40 parts of extinction wax additives, 15-50 parts of special wax additives, 3-15 parts of dispersants, 15-35 parts of complex aging resistant additives, 0-100 parts of resin-type water-based coloring materials, and 0-60 parts of water. The product with high sold content is applicable to coating and protection on wood platforms, wood doors and windows, fences, leisure tables and chairs and other wood structures manufactured and formed outdoors. The water-based clear topcoat with high solid content is simple in preparation method, easy to operate, free of harm to an operator, and applicable to industrial popularization and application.

Description

technical field [0001] The invention relates to a water-based wood varnish with low VOC content, high solid content and good weather resistance and a preparation method thereof, belonging to the field of coatings. Background technique [0002] During the "Eleventh Five-Year Plan" period, my country has determined the goal of building a conservation-oriented and environment-friendly society and developing a sustainable and circular economy. At the end of 2005, the State Council forwarded the "Opinions on Accelerating the Promotion of Wood Conservation and Substitution" to 12 government departments including the National Development and Reform Commission, requiring the promotion of wood protection technology and the extension of the service life of wood products. It is encouraged to carry out protective treatments such as coating, anti-corrosion, insect (ant), anti-mildew, drying, flame retardant, and modification on wood. When wood is used outdoors and as a landscape, it mus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/12C09D5/14B05D1/02B05D7/08
Inventor 陈寿生王德华
Owner 濮阳展辰新材料有限公司
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