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A kind of clear wood varnish and preparation method thereof

A wood paint, clear technology, used in coatings, polyurea/polyurethane coatings, etc., can solve problems such as poor transparency and whitening of the paint film, and achieve the effect of strong adhesion, clear paint film, and strong paint film

Active Publication Date: 2016-06-01
NIPPON PAINT CHENGDU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of clear wood paint and its preparation method, to solve the problems of extremely poor transparency in the construction process of wood paint in the prior art, and the problem of whitening of the paint film after recoating

Method used

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  • A kind of clear wood varnish and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of clear wood lacquer, it is to be made up of component A and component B that weight ratio is 1:0.5; Said component A is the addition of toluene diisocyanate TDI and trimethylol propane that are 64% by weight or TDI trimer or their mixture, 18% butyl acetate and 18% ethyl acetate; the component B is 65.9% by weight of alkyd resin or modified alkyd resin or Their mixture, 2.55% butyl acetate, 2.55% ethyl acetate, 2.55% xylene, 0.3% defoamer (BYK066, BYK), 0.35% leveling agent (BYK310, BYK ), 10.8% matting agent (ED30, Grace), 4% antibacterial agent, 0.2% dispersant (EFKA-4010, Ciba Specialty Chemicals (China) Co., Ltd.), 0.8% anti-settling agent (DISPARLONA- 630-20X, Disparon) and 10% modified resin (25% 1 / 2S nitrocellulose solution, Weiye Chemical).

[0041] Its preparation method is as follows:

[0042] Preparation of Component A:

[0043] (1) Fill the tank with nitrogen for 5 minutes, keep the pressure at 0.01-0.05Mpa, then put in 18% butyl acetate and 18% ...

Embodiment 2

[0051] A kind of clear wood lacquer, it is to be made up of component A and component B that weight ratio is 1:0.5; Described component A is the addition of toluene diisocyanate TDI and trimethylol propane that are 70% by weight or TDI trimer or their mixture, 15% butyl acetate and 15% ethyl acetate; the component B is composed of 79% alkyd resin or modified alkyd resin or Their mixture, 0.5% butyl acetate, 0.5% ethyl acetate, 0.5% xylene, 0.36% defoamer (BYK066, BYK), 0.4% leveling agent (BYK310, BYK ), 4.44% matting agent (ED30, Grace), 5% antibacterial agent, 0.3% dispersant (EFKA-4010, Ciba Specialty Chemicals (China) Co., Ltd.), 1% anti-settling agent (DISPARLONA- 630-20X, Disparon) and 8% modified resin (25% 1 / 2S nitrocellulose solution, Weiye Chemical).

[0052] Its preparation method is as follows:

[0053] Preparation of Component A:

[0054] (1) Fill the tank with nitrogen for 5 minutes, keep the pressure at 0.01-0.05Mpa, then put in 15% butyl acetate and 15% ethy...

Embodiment 3

[0062] A kind of clear wood lacquer, it is to be made up of component A and component B that weight ratio is 1:0.25; Described component A is the addition of toluene diisocyanate TDI and trimethylol propane that are 30% by weight Component B is composed of 58% alkyd resin or modified alkyd resin or modified alkyd resin or Their mixture, 3% butyl acetate, 3% ethyl acetate, 3% xylene, 0.16% defoamer (BYK066, BYK), 0.2% leveling agent (BYK310, BYK ), 12.5% ​​matting agent (ED30, Grace), 5% antibacterial agent, 0.1% dispersant (EFKA-4010, Ciba Specialty Chemicals (China) Co., Ltd.), 0.04% anti-settling agent (DISPARLONA- 630-20X, Disparon) and 15% modified resin (25% 1 / 2S nitrocellulose solution, Weiye Chemical).

[0063] Its preparation method is as follows:

[0064] Preparation of Component A:

[0065] (1) Fill the tank with nitrogen for 5 minutes, keep the pressure at 0.01-0.05Mpa, then put in 35% butyl acetate and 35% ethyl acetate by weight, and stir at a low speed for 5 m...

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Abstract

The invention discloses a clear wood paint and a preparation method thereof, belonging to the technical field of application of paints. The invention solves the problem of poor transparency of the wood paint in the construction process, and the problem of white paint film after recoating. The clear wood paint is composed of a component A and a component B, wherein the component A is composed of an addition product of toluene diisocyanate (TDI) and trimethylolpropane or TDI tripolymer or mixture thereof, butyl acetate and ethyl acetate; the component B is composed of alkyd resin or modified alkyd resin or mixture thereof, butyl acetate, ethyl acetate, dimethylbenzene, defoaming agent, leveling agent, flatting agent, antimicrobial agent, dispersing agent, anti-settling agent and modified resin; and the weight ratio of the component A to the component B is 1:0.5 or 1:0.25. The invention also provides a preparation method of the wood paint. The wood paint disclosed by the invention has the advantage of clear and layered paint film, and can better display the beautiful texture of the wood.

Description

technical field [0001] The invention belongs to the technical field of coating application, and in particular relates to a clear wood varnish and a preparation method thereof. Background technique [0002] In the product composition of wood coatings in my country, solvent-based products still occupy an important position. In solvent-based wood coatings, polyurethane coatings account for more than 90%, of which two-component polyurethane is the main one, but the transparency of the product during construction is extremely poor, and the phenomenon of whitening of the paint film after recoating is more prominent, which can no longer satisfy people. demand. Contents of the invention [0003] The object of the present invention is to provide a clear wood paint and its preparation method, which can solve the problems of extremely poor transparency of the wood paint during construction and whitening of the paint film after recoating in the prior art. [0004] In order to achiev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/06C09D175/14C09D7/12
Inventor 谢飞
Owner NIPPON PAINT CHENGDU
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