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High-hardness water-borne double-component wood-ware varnish with high wear resistance and preparing method thereof

A water-based two-component, wood varnish technology, applied in the field of wood varnish, can solve the problems of little improvement in wear resistance and scratch resistance, increased VOC content, affecting the transparency of the paint film, etc., to achieve excellent coating effect and application range, improve Abrasion resistance, fine touch effect

Inactive Publication Date: 2015-11-25
中山吕邦新材料科技有限公司
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Problems solved by technology

However, increasing the glass transition temperature of the resin requires the addition of a large amount of film-forming aids, which will increase the VOC content; the added high-molecular-weight silicone polymer has poor compatibility with the resin system; adding fillers will affect the transparency of the paint film. There is not much improvement in the effect of wear resistance and scratch resistance

Method used

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  • High-hardness water-borne double-component wood-ware varnish with high wear resistance and preparing method thereof
  • High-hardness water-borne double-component wood-ware varnish with high wear resistance and preparing method thereof
  • High-hardness water-borne double-component wood-ware varnish with high wear resistance and preparing method thereof

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preparation example Construction

[0025] The preparation method of the high hardness and high wear resistance water-resistant two-component wood varnish of the present invention comprises the following steps, wherein the technological process of main agent A is as follows figure 1 Shown:

[0026] (1). According to the formula amount in Table 1, put the water-based hydroxyacrylic acid emulsion into the dispersion tank, and add the water-based multifunctional additive, water-based dispersant, water-based anti-sedimentation agent, water-based wetting agent, Water-based defoamer and film-forming aid, after adding, disperse at 1000r / min for 10-15min;

[0027] (2). Add water-based wear-resistant functional filler under stirring state, and disperse at 1200r / min for 30min to fineness≤25um after adding;

[0028] (3). Add water-based polyurethane resin, water-based defoamer, water-based leveling agent, antifreeze, anti-corrosion and fungicide, water-based thickening rheological agent and the rest of water in 800r / min s...

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Abstract

The invention provides high-hardness water-borne double-component wood-ware varnish with high wear resistance. The varnish is composed of main agent A and a curing agent B. The main agent A is composed of, by weight, 50-70% of water-borne hydroxyl acrylic emulsion, 10-30% of water-borne polyurethane resin, 4.0-8.0% of water-borne wear-resisting functionality filler, 6.5-11.7% of adjuvant and the balance water; the curing agent B is composed of, by weight, 80% of water dispersing modified polyisocyanate and 20% of propylene glycol monomethyl ether acetate. According to a coating method for the high-hardness water-borne double-component wood-ware varnish with the high wear resistance, the main agent A, the curing agent and the water are mixed according to the weight ratio of 100:20:20-30. The varnish has the advantages of being high in hardness and wear resistance, drying fast, resisting scratching, being good in water resistance and excellent in alcohol resistance, and resisting adhesion, and can be widely applied.

Description

technical field [0001] The invention relates to a wood varnish. Background technique [0002] With the increasing awareness of environmental protection, the scope of use of solvent-based coatings is gradually limited, while water-based wood coatings have the advantages of no pollution to the environment, low volatile organic compound (VOC) emissions, low toxicity, non-flammable, non-explosive, and fire hazards. People are paying more and more attention to it, and water-based wood coatings are being used more and more in the industrial wood coatings market. However, due to the poor wear resistance, low hardness, poor adhesion resistance, and poor scratch resistance of one-component water-based wood coatings, the application and development of water-based wood coatings in the market are restricted, especially for wear resistance, hardness, and scratch resistance. Applications on office furniture with high requirements. [0003] Generally speaking, methods to improve the abra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/12
Inventor 范昌平吕其明
Owner 中山吕邦新材料科技有限公司
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