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Double-component water-based wood paint and preparation method thereof

A water-based wood paint, two-component technology, applied in the direction of coating, can solve the problems of low wear resistance, low hardness of the coating film, affecting the use of water-based wood paint, etc., to achieve good water resistance, high gloss, good resistance abrasive effect

Inactive Publication Date: 2017-01-25
太仓市美航涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the film hardness of one-component water-based wood lacquer is low, even far lower than that of two-component polyurethane paint with poor environmental performance, and its wear resistance is not high, which seriously affects the application of water-based wood lacquer on the dining table and work. Use on countertops and other furniture

Method used

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  • Double-component water-based wood paint and preparation method thereof

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preparation example Construction

[0016] figure 1 It is the process steps diagram of the preparation method of the two-component water-based wood lacquer in the embodiment of the present invention; the two-component water-based wood ware paint is composed of hydroxyl-terminated water-based polyurethane dispersion, hexamethylene diisocyanate trimer, diethylene glycol diethyl ether and It is prepared from a variety of additives, and the preparation method includes the following steps: a) preparing a hydroxyl-terminated aqueous polyurethane dispersion, b) preparing component A, c) preparing component B, and d) mixing components A and B to prepare Take the finished product.

[0017] The two-component water-based wood lacquer mentioned in the present invention uses hexamethylene diisocyanate trimer to add film-forming aid diethylene glycol diethyl ether as component A, and adds various auxiliary materials to self-made hydroxyl-terminated water-based polyurethane dispersion. The agent is prepared as part B. The pr...

Embodiment

[0019] The specific preparation method is as follows:

[0020] a) Preparation of hydroxyl-terminated aqueous polyurethane dispersion, the specific preparation process is as follows: first, weigh 19% of polycaprolactone diol, 16% of toluene diisocyanate, and 14% of 2,2-dimethylol by weight percentage Propionic acid, 22% acetone, 13% neopentyl glycol, 3% butyltin dilaurate, 8% triethylamine, 5% hydroxyl end-capping agent; then polycaprolactone glycol, Add toluene diisocyanate, 2,2-dimethylol propionic acid and half of acetone into the stirring container, heat up to 90°C, and keep it warm for 1 hour; then add the other half of acetone, neopentyl glycol and butyltin dilaurate, and cool down to 55°C ℃, heat preservation reaction for 2.5 hours; after cooling, put the material into a high-speed emulsification kettle, add triethylamine and cold water, and emulsify for 10 minutes; then add a hydroxyl end-capping agent and emulsify for 30 minutes to obtain an emulsion; finally put the e...

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Abstract

The invention relates to a double-component water-based wood paint and a preparation method thereof. The double-component water-based wood paint is prepared from a hydroxyl-terminated water-based polyurethane dispersion, hexamethylene diisocyanate tripolymer, diethylene glycol diethyl ether and multiple aids. The preparation method comprises the following steps: a) preparing the hydroxyl-terminated water-based polyurethane dispersion; b) preparing a component A; c) preparing a component B; and d) mixing the component A and component B to prepare the finished product. The wood paint is convenient to use, has the advantages of environment friendliness, high safety, favorable adhesion, high gloss, excellent water resistance, favorable wear resistance and higher film hardness.

Description

technical field [0001] The invention relates to a wood varnish, in particular to a two-component water-based wood varnish and a preparation method thereof, belonging to the technical field of coatings. Background technique [0002] Coatings are applied on the surface of objects by different construction techniques to form a continuous solid film with strong adhesion and certain strength. Coatings generally contain four basic components: film-forming substances, pigments, solvents and additives. As a class of modern multifunctional engineering materials, coatings are widely used. At present, my country's coatings industry is developing in three directions: environmental protection, economy, and high performance. It is vigorously developing low-content solvent, water-based and solvent-free, powder, and UV-curable coatings. In recent years, my country's coating industry has been committed to the development of low pollution, high solids or solvent-free coatings, water-based c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D7/12C08G18/79C08G18/76C08G18/66C08G18/42C08G18/34C08G18/32C08G18/12
CPCC09D175/06C08G18/12C08G18/3206C08G18/348C08G18/4277C08G18/6659C08G18/725C08G18/7614C08G18/792C08L2205/02C08L2205/035C08L75/04C08L83/12C08L91/06C08K5/06
Inventor 李文彪
Owner 太仓市美航涂料有限公司