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Transparent basis lacquer of color-changing PU dream-color wood lacquer

A wood lacquer and color-changing technology, applied in the coating and other directions, can solve the problems of dull gloss, poor flexibility, and inability to increase the hardness too much, and achieve the effect of high gloss, high hardness and high cross-linking degree.

Inactive Publication Date: 2017-01-18
广东花王涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PU flashing wood paint is a kind of wood coating with excellent decorative performance, which can give people a gorgeous visual enjoyment. It is widely used in wood decoration. It cannot be designed too high, the hardness cannot be increased too high, the flexibility will also become worse with the increase of hardness, and the luster will be dim. The pearl powder used can only reflect a single color, and the color cannot change with the movement of the viewing angle.

Method used

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  • Transparent basis lacquer of color-changing PU dream-color wood lacquer
  • Transparent basis lacquer of color-changing PU dream-color wood lacquer
  • Transparent basis lacquer of color-changing PU dream-color wood lacquer

Examples

Experimental program
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Effect test

preparation example Construction

[0024] The preparation method of above-mentioned transparent base varnish comprises the following steps:

[0025] A. Select a clean and standard dispersion cylinder;

[0026] B. Put in 1272 acrylic resin 41.3%~60%, DP315 saturated polyester resin 25%~40%, polyethylene wax paste 1%, BYK-110 dispersant 0.5%~1%, EFKA-3777 leveling agent 0.5% ~1%, EFKA-3600 leveling agent 0.1%~0.2%, BYK-066N defoamer 0.2%~0.5%, MIBK methyl isobutyl ketone 2%~1%;

[0027] C. Start the disperser and disperse at low speed (1200-1500r / min) for 10 minutes;

[0028] D. Add 5% of 15% polyamide wax slurry, 5% to 8% of 20% cellulose acetate, release no less than 2KG paint at the interface, pour it back into the dispersion tank, and send it for inspection after it is evenly dispersed;

[0029] E. Add 0.5% to 1% of n-butyl acetate to adjust the viscosity to 2500 to 3500mpa.s / 25°C to obtain a transparent base varnish of component A.

[0030] Among them, 1272: High-hydroxyl acrylic resin produced by New Pac...

Embodiment 1

[0053] 1) Preparation of 20% cellulose acetate:

[0054] Methyl ethyl ketone 20Kg

[0055] CAB-551-0.2 20Kg

[0056] Butyl acetate 60Kg

[0057] Disperse and stir until completely dissolved, until the fineness is ≤15um;

[0058] 2) Proportion of component A transparent base varnish:

[0059]

[0060] Uniform dispersion to fineness≤25um, viscosity 2500~3500mpa.s / 25℃

[0061] 3) Proportion of component A magic paint:

[0062] Base paint 80Kg

[0063] Color-changing pearlescent pigment 20Kg

[0064] 4) The ratio of component B:

[0065]

[0066] After dehydration, start stirring and dispersing for 30 minutes, keep warm at 70°C, cool down and discharge and seal.

[0067] HI-100: 100% solid HDI trimer curing agent produced by BASF (China) Co., Ltd.;

[0068] 3390: 90% solid HDI trimer curing agent produced by Bayer;

[0069] 5) The ratio of component C

[0070]

[0071] Stir well and set aside

[0072] The preparation of described component A transparent base v...

Embodiment 2

[0079] 1) Preparation of 20% cellulose acetate:

[0080] Methyl ethyl ketone 20Kg

[0081] CAB-551-0.2 20Kg

[0082] Butyl acetate 60Kg

[0083] Disperse and stir until completely dissolved, until the fineness is ≤15um;

[0084] 2) Proportion of component A transparent base varnish:

[0085]

[0086]

[0087] Uniform dispersion to fineness≤25um, viscosity 2500~3500mpa.s / 25℃

[0088] 3) Proportion of component A magic paint:

[0089] Base paint 92Kg

[0090] Color-changing pearlescent pigment 8Kg

[0091] 4) The ratio of component B:

[0092]

[0093] After dehydration, start stirring and dispersing for 30 minutes, keep warm at 70°C, cool down and discharge and seal.

[0094] HI-100: 100% solid HDI trimer curing agent produced by BASF (China) Co., Ltd.;

[0095] 3390: 90% solid HDI trimer curing agent produced by Bayer;

[0096] 5) The ratio of component C

[0097]

[0098] Stir well and set aside

[0099] The preparation of described component A transpa...

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Abstract

The invention discloses a transparent basis lacquer of color-changing PU dream-color wood lacquer. The transparent basis lacquer of color-changing PU dream-color wood lacquer is prepared from, by weight, 41.3%-60% of 1272 acrylic resin, 25%-40% of DP315 saturated polyester resin, 1% of polyethylene wax liquor, 0.5%-1% of a BYK-110 dispersing agent, 0.5%-1% of a EFKA-3777 flatting agent, 0.1%-0.2% of a EFKA-3600 flatting agent, 0.2%-0.5% of a BYK-066N antifoaming agent, 1%-2% of MIBK methyl isobutyl ketone, 5% of polyamide wax liquor of 15%, 5%-8% of cellulose acetate of 20% and 0.5%-1% of n-butyl acetate. By means of the transparent basis lacquer prepared with the ingredients, the designed cross linking degree and hardness are high, the suppleness cannot be poor along with improvement of the hardness, and the gloss is also high.

Description

technical field [0001] The invention relates to a transparent basic varnish of a color-changing PU magic color wood paint. Background technique [0002] PU flashing wood paint is a kind of wood coating with excellent decorative performance, which can give people a gorgeous visual enjoyment. It is widely used in wood decoration. It cannot be designed too high, the hardness cannot be increased too high, the flexibility will also become worse with the increase of hardness, and the luster will be dim. The pearl powder used can only reflect a single color, and the color cannot change with the movement of the viewing angle. . [0003] Therefore, it is necessary to improve and optimize the base varnish for preparing PU magic color wood paint. Contents of the invention [0004] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a transparent base varnish of color-changing PU magic color wood varnish, which has the characteristi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D7/12C09D7/00C08G18/62C08G18/42C08G18/64
CPCC09D175/06C08G18/42C08G18/6216C08G18/6484
Inventor 方学平杨长春
Owner 广东花王涂料有限公司
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