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Preparation method of scratch resistant double-component polyurethane woodenware glossy vanish

A two-component polyurethane and wood gloss varnish technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve problems that plague manufacturers and engineers and technicians, and achieve improved anti-sagging, high gloss and high hardness of the paint film Effect

Active Publication Date: 2014-07-23
美家化工(惠州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These problems bother manufacturers and engineers and technicians, and some problems have not been solved for a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] According to the formula weight ratio, add 11.5 parts of mixed solvent into the dispersion tank, add 60 parts of 60% solid alkyd resin, 20 parts of 70% solid hydroxyl acrylic resin, 8 parts of 60% solid aldehyde and ketone resin, and stir at high speed Disperse evenly, disperse at high speed for 30-40 minutes, add 0.2 parts of titanate modified silicone chelating leveling agent, 0.1 part of silicone modified acrylic copolymer leveling agent, and 0.2 parts of modified silicone defoamer under low speed stirring , stirred and passed the test, filtered and packaged to obtain the first component of the anti-scratch two-component polyurethane wood gloss varnish.

Embodiment 2

[0019] Add 40 parts of TDI / TMP adduct, 30 parts of HDI trimer, and 30 parts of mixed solvent into the dispersion tank and stir evenly. After passing the test, filter and pack to prepare the second component of anti-scratch two-component polyurethane wood gloss varnish .

[0020] Mix the paint according to the ratio of component A: component B = 1:0.5, and add thinner to adjust the viscosity to be brushable.

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Abstract

The invention relates to a preparation method of a scratch resistant double-component polyurethane woodenware glossy vanish. The vanish is composed of a resin paint component A and a curing agent component B, wherein the weight ratio of the component A to the component B is 1:0.5; the resin paint component A is composed of alkyd resin, acrylic acid resin, aldehyde-ketone resin, a chelating leveling agent, an antifoaming agent, and a solvent; and the curing agent component B is composed of a TDI-HDI mixed trimer or a TDI / TMP adduct, a HDI trimer, and a solvent. The prepared vanish has the advantages of high hardness, low viscosity, and good leveling property. The paint membrane has high gloss and an appearance like a crystal or a jade, is transparent, thick, and smooth, can give people a high class feeling, can create a mirror-liked decoration effect, is capable of forming a refreshing, grace, concise and tranquil space, brings a relaxed and happy sense to people, is accord with the modern aesthetics, is welcomed by the market and customers, and is widely used to protect and decorate surfaces of woodenware, metal products, and plastic products.

Description

technical field [0001] The invention relates to a preparation method of a two-component polyurethane wood varnish, in particular to an anti-scratch polyurethane wood varnish suitable for various types of wood. Background technique [0002] With the improvement of people's material and cultural living standards, consumers have higher and higher requirements for the coating effect of furniture, which has led to the rapid growth of domestic wood coatings. The coating effect of the furniture surface will directly affect consumers' choice of furniture. In recent years, glossy furniture has become popular and has occupied part of the market share. Today's huge wood paint market has higher and higher requirements for paint products. Especially wood polyurethane (PU) paint has excellent comprehensive performance and is widely used by consumers, but the product has many shortcomings, such as whitening, dark bubbles, prickly heat , Not resistant to scratches, ghosting, vacuuming, hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14
Inventor 许钧强李泽刚康伦国欧永杰姚东生
Owner 美家化工(惠州)有限公司
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