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Transparent aqueous monocomponent priming paint and preparation method thereof

A transparent primer, one-component technology, applied in the field of coatings, can solve problems such as poor compatibility, easy damage to emulsions, poor wettability of wood, etc., and achieve excellent mechanical properties, pollution resistance and chemical resistance. The effect of excellent gloss and appearance

Inactive Publication Date: 2012-02-29
CHENGDU BEIDA PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the water-based paint in the prior art has poor wettability to wood, and the compatibility with other water-based paints is often not good, and the emulsion is easily destroyed under high-speed stirring.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] By weight, add 40 parts of water-based polyurethane dispersion (Obaodi AC 2508), 20 parts of polyacrylic acid modified polyurethane (Obaodi AC 2606), wetting agent (Tao DOW X405) 0.1 part, thickener (Rohm and Haas RM 2020) 1.0 part, defoamer (Byke BYK 028) 0.1 part, stir well and slowly add filler (Presden CC 200) 5.0 parts, then Adjust the stirring speed to 1200r / min, disperse until the fineness is ≤60um, then add 0.1 part of leveling agent (BYK 346) and 0.1 part of film-forming aid (Eastman alcohol ester-12) in sequence, and then stir Adjust the rotation speed to 600r / min and stir evenly, wash the equipment with 1.0 part of water, adjust the viscosity to 120KU, and filter to obtain the finished product.

Embodiment 2

[0015] By weight, add 50 parts of aqueous polyurethane dispersion (Oubaodi AC 2508), 30 parts of polyacrylic acid modified polyurethane (Oubaodi AC 2606) and wetting agent (Bi Gram BYK 194) 0.5 parts, thickener (Rohm and Haas RM 2020) 2.0 parts, defoamer (Digao Tego 902 W) 0.5 parts, stir well and slowly add filler (Presden CC 200) 15.0 parts, Then adjust the stirring speed to 1500r / min, disperse until the fineness is ≤60um, then add 0.5 parts of leveling agent (Tego 410) and 2.0 parts of film-forming aid (Eastman alcohol ester-12) in sequence, and then add Adjust the stirring speed to 800r / min and stir evenly, clean the equipment with 5.0 parts of water, adjust the viscosity to 130KU, and filter to obtain the finished product.

Embodiment 3

[0017] By weight, add 45 parts of aqueous polyurethane dispersion (Oubaodi AC 2508), 25 parts of polyacrylic acid modified polyurethane (Oubaodi AC 2606) and wetting agent (NOPCO) into the container at a stirring speed of 700r / min. SN 996) 0.3 parts, thickener (Rohm and Haas RM 2020) 1.5 parts, defoamer (NOPCO SN 154) 0.3 parts, stir evenly and slowly add filler (Presden CC 200) 10 parts, then stir Adjust the rotation speed to 1400r / min, disperse until the fineness is ≤60um, then add 0.3 parts of leveling agent (BYK 346) and 1 part of film-forming aid (Eastman alcohol ester-12) in sequence, and then adjust the stirring speed to Stir evenly at 700r / min, wash the equipment with 3 parts of water, adjust the viscosity to 125KU, and filter to obtain the finished product.

[0018] Table 1 Product performance comparison of each embodiment:

[0019] Test items Solvent type Example 1 Example 2 Example 3 Appearance of paint film smooth smooth smooth smoot...

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PUM

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Abstract

The invention which discloses a transparent aqueous monocomponent priming paint and a preparation method thereof belongs to the coating field. The formula of the priming paint comprises, by weight, 40-50 parts of an aqueous polyurethane dispersion, 20-30 parts of polyacrylic acid modified polyurethane, 0.1-0.5 parts of a wetting agent, 1.0-2.0 parts of a thickening agent, 0.1-0.5 parts of an antifoaming agent, 5.0-15.0 parts of a filler, 0.1-0.5 parts of a leveling agent, 0.1-2.0 parts of a film forming assistant and 1.0-5.0 parts of water. The priming paint of the invention has the advantages of excellent luster and appearance, good contamination resistance and chemical resistance, excellent mechanical performance, realization of simultaneous construction with other paints of an emulsion paint and the like, easy operation, and diversification.

Description

Technical field [0001] The invention is the field of coating, which involves a water -based single -group division of transparent primer and its preparation methods. Background technique [0002] There are many types of coatings on the market. They are mainly divided into organic coatings and inorganic coatings. Organic coatings are divided into organic solvent -based coatings and organic water -based coatings according to different solvents.Because of the high VOC, organic solvent -based coatings cannot meet people's increasing requirements for environmental protection. [0003] Organic water -based coatings, that is, water -based coatings, are now increasingly becoming a hot spot in research.Conventional water -based paint is poorly wettic, and it is often not good to reflected with other water properties. It is easy to destroy emulsion under high -speed stirring. Invention content [0004] The technical problem to be solved by the present invention is that the existing techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04
Inventor 吕跃文
Owner CHENGDU BEIDA PAINT
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