Nitrocellulose transparent primer and application thereof

A transparent primer and nitro technology, applied in coatings, polyester coatings, natural resin coatings, etc., can solve the problems of waste of resources, pollution of the environment, time-consuming and other problems, to reduce environmental pollution, and to achieve good film filling. , the effect of reducing the number of construction

Active Publication Date: 2012-08-01
NIPPON PAINT GUANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many traditional nitro paints use nitrocellulose as a film-forming material, which has a low solid content, and the paint film dries up after drying, and the filling is not enough, so it needs to be painted many times; the use of ordinary extender pigments will cause the paint film to have poor transparency after drying. It cannot better show the texture of wood, which affects the appearance of furniture; the traditional nitro transparent primer has low solid content and less extender pigment, which affects the filling performance of the product. Excessive man-hours; the traditional nitro transparent primer also adopts the ratio of main paint: diluent = 1:1, which has more volatile solvents, which not only causes waste of resources, but also pollutes the environment and damages people's health

Method used

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  • Nitrocellulose transparent primer and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of nitro transparent primer, is prepared by following method:

[0037] (1) Preparation of main paint: Weigh 210g of soybean oil short oil alkyd (Changxing Chemical) and put it into the dispersion tank, stir; weigh 2g of wetting and dispersing agent (EFKA), 30g of main paint solvent and slowly add to the mixture containing soybean oil short oil In the oil alkyd dispersion tank, stir evenly at a speed of 600-800r / min; weigh 500g of nitrocellulose solution (Dekang), 50g of epoxy soybean oil, and 60g of maleic acid modified rosin resin and add them to the dispersion tank. Stir evenly at a stirring speed of 800-1000r / min, then slowly add 5g of anti-sedimentation agent organic bentonite, 40g of grinding aid zinc stearate, 80g of talc powder, and 20g of microsilica powder into the dispersion tank while stirring. Increase to 2000-2500r / min and disperse for 20-25min until the fineness is ≤60um. Finally, 2g of silicone defoamer (purchased from BASF, Germany), 1g of anti-ye...

Embodiment 2

[0042] A kind of nitro transparent primer, is prepared by following method:

[0043] (1) Preparation of main paint: Weigh 230g of soybean oil short oil alkyd (Jiangmen paint) and put it into the dispersion tank, stir; weigh 2g of wetting and dispersing agent (EFKA), 30g of main paint solvent and slowly add to the mixture containing soybean oil In the short-oil alkyd dispersion tank, stir evenly at a speed of 600-800r / min; weigh 470g of nitrocellulose solution (Dekang), 40g of epoxy soybean oil, and 70g of maleic acid modified rosin resin and add them to the dispersion tank , stir evenly at a stirring speed of 800-1000r / min, then slowly add 5g of anti-sedimentation agent organic bentonite, 50g of grinding aid zinc stearate, 70g of talcum powder, and 20g of transparent powder into the dispersion tank while stirring, and put Increase the rotation speed to 2000-2500r / min and disperse for 20-25min until the fineness is ≤60um. Finally, add 2g of silicone defoamer (purchased from BAS...

Embodiment 3

[0048] A kind of nitro transparent primer, is prepared by following method:

[0049](1) Preparation of the main paint: Weigh 250g of soybean oil short oil alkyd (Changxing Chemical) and put it into the dispersion tank, stir; weigh 2g of wetting and dispersing agent (EFKA) and 30g of main paint solvent and slowly add it to the mixture containing soybean oil short oil In the oil alkyd dispersion tank, stir evenly at a speed of 600-800r / min; weigh 450g of nitrocellulose solution (Dekang), 30g of epoxy soybean oil, and 60g of maleic acid modified rosin resin and add them to the dispersion tank. Stir evenly at a stirring speed of 800-1000r / min, then slowly add 5g of anti-sedimentation agent organic bentonite, 60g of grinding aid zinc stearate, 60g of talc powder, and 20g of silicon micropowder into the dispersing tank while stirring. Increase to 2000-2500r / min and disperse for 20-25min until the fineness is ≤60um. Finally, 2g of silicone defoamer (purchased from BASF, Germany), 1g ...

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Abstract

The invention discloses a nitrocellulose transparent primer and an application thereof. The primer is prepared by mixing main lacquers and diluents based on a mass ratio of 1: (0.4-0.6), the main lacquers are obtained by evenly mixing 21.0-25.0% of alkyd resins, 6.0-8.0% of inflexible resins, 0.2% of dispersing agents, 45.0-50.0% of nitrocotton liquids, 3.0-5.0% of plasticizers, 8.0-10.0% of extender pigments, 4.0-6.0% of grinding aids, 0.5% of anti-setting agents, 0.2% of defoaming agents, 0.1% of anti-yellowing agents and 5.5% of main lacquer solvents, the extender pigments are mixtures of more than two of a talcum powder, a transparent powder or a silica micropowder, and the diluents are prepared by mixing and uniformly stirring 42% of ester solvents, 33% of aromatic hydrocarbon solvents, 13% of solvent oil and 12% of alcohol ether solvents. According to the nitrocellulose transparent primer, the repainting transparency is high, the drying is quick, the film filling capability is good, the grinding capability is good, the fullness degree is high, construction times are effectively reduced, and each of the components has not any benzene-containing solvent, thereby the health of a constructor is greatly guaranteed, the environmental pollution is effectively reduced, and the nitrocellulose transparent primer can be widely applied to aspects of home decoration, furniture and the like.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to an oily nitro transparent primer for wood decoration and its application. Background technique [0002] At present, in the furniture market, nitro lacquer is favored by consumers because of its good ability to highlight the essential beauty of wood grain. Many traditional nitro paints use nitrocellulose as a film-forming material, which has a low solid content, and the paint film dries up after drying, and the filling is not enough, so it needs to be painted many times; the use of ordinary extender pigments will cause the paint film to have poor transparency after drying. It cannot better show the texture of wood, which affects the appearance of furniture; the traditional nitro transparent primer has low solid content and less extender pigment, which affects the filling performance of the product. Excessive man-hours; the traditional nitro transparent primer also adopts the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D101/18C09D167/08C09D193/00C09D7/12
Inventor 张先成
Owner NIPPON PAINT GUANGZHOU
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