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Water single component poly urethane woodware paint and its producing method

A one-component, polyurethane technology, applied in the field of paint, can solve the problems of large VOC volatilization, not resistant to alcohol scrubbing, easy to turn yellow, etc., to achieve the effect of reducing volatilization, environmental protection, and prolonging the time of film formation

Inactive Publication Date: 2008-05-07
GUANGDONG MAYDOS BUILDING MATERIALS LTD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the permeability of nitrocellulose wood varnish to wood fiber is very ideal, it has many disadvantages, such as easy to turn yellow, not resistant to alcohol scrubbing, and a large amount of VOC volatilization, so it is also an open effect paint.

Method used

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  • Water single component poly urethane woodware paint and its producing method
  • Water single component poly urethane woodware paint and its producing method
  • Water single component poly urethane woodware paint and its producing method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0032] Waterborne one-component polyurethane open-effect wood lacquer, consisting of the following components: waterborne one-component polyurethane content of 75%, water-soluble cellulose ether content of 7.5%, deionized water content of 17%, water-based silicone The content is 0.5%; the above percentage refers to the percentage containing the total mass.

[0033] The manufacturing process adopted in this embodiment is as follows:

[0034] (1) Prepare raw materials: one-component polyurethane aqueous dispersion, water-soluble cellulose ether, water, water-based silicone;

[0035] (2) Under normal temperature conditions, put into a single-component polyurethane aqueous dispersion, water-soluble cellulose ether, and pure water by percentage in a conventional high-speed disperser to disperse, so that the fineness of the material is less than 40 microns;

[0036] (3) Control the temperature below 50°C, put water-based silicone into the disperser, and disperse at a medium speed f...

specific Embodiment 2

[0040] Fatty acid modified one-component polyurethane aqueous dispersion adopts the product of Germany Bayer (bayer), and the model is VP LS 2342, and its content is 84.5%; Water-soluble cellulose ether is the product of German Clariant Gmbh (Clariant Gmbh), and its content 2%; the content of pure water is 9.5%, and the water-based silicone is mixed by several materials of Byk028, Byk024, Byk346, and Byk381 of BYK Company in Germany, and the content is 3%; the above percentage refers to the content of percentage of the total mass.

[0041] Drying time (moisture retention)

specific Embodiment 3

[0043] The water-based one-component polyurethane open effect wood lacquer is composed of the following components: the fatty acid modified one-component polyurethane aqueous dispersion adopts the product of Bayer (bayer) company in Germany, the model is VP LS 2342, and its content is 81%; water-soluble Cellulose ether is a product of Clariant Gmbh in Germany. Its content is 4.5%, and the content of purified water is 13%. Water-based silicone is made by mixing several materials of Byk028, Byk024, Byk346, and Byk381 of BYK Company in Germany. , the content is 1.5%; the above percentages refer to the percentages containing the total mass. The result obtained by the experiment shows that the performance of the product obtained in embodiment 3 is better than that in embodiments 1 and 2.

[0044] This specific embodiment 3 draws the result of the following table through comparing with similar products and through testing: the selected experimental plate is the ash three-plywood.

...

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Abstract

The water-thinned single-component polyurethane paint for woodenware consists of water-thinned single-component polyurethane 75-85 wt%, water soluble cellulose ether 2-8 wt%, water-thinned organosilicon 0.5-4 wt% and water 9-17 wt%. Its preparation process includes throwing and dispersing water-thinned single-component polyurethane and water soluble cellulose ether into water in conventional high speed dispersing machine to form fineness smaller than 40 microns; raising temperature to 50 deg.c and dispersing water-thinned organosilicon at medium speed for 5 min; and taking out the product. The present invention can make timber canal produce opening effect to maintain the natural texture of timber while protecting timber, and has few VOC volatile, being favorable to human health.

Description

technical field [0001] The invention relates to a wood varnish, more specifically a water-based one-component polyurethane wood varnish which can not only protect wood but also maintain the texture structure of wood ducts and make it have an opening effect. It belongs to the technical field of paint making. Background technique [0002] With the rapid development of my country's social economy, consumers have higher and higher requirements for the quality of life. In terms of wood decoration and furniture purchase, the demand for high-grade solid wood and veneer wood is more than that for ordinary wood with stickers. greatly increased. [0003] The usual way to decorate solid wood and veneered woodware in the market is to use paint to fill up the conduits of the wood as much as possible, and finally achieve a relatively flat paint film effect. Such woodware is not currently attractive to consumers. First of all, consumers’ current requirements for woodware are to be able t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D5/02
Inventor 李锋周伟建
Owner GUANGDONG MAYDOS BUILDING MATERIALS LTD CO
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