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Preparation method of color-variable PU colorful wood lacquer base varnish

A wood paint and color-changing technology, applied in the direction of multi-color effect paints, coatings, polyester paints, etc., can solve problems such as dull luster, not too high hardness, poor flexibility, etc., to achieve high hardness and high gloss , the effect of high cross-linking degree

Inactive Publication Date: 2017-02-01
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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  • Preparation method of color-variable PU colorful wood lacquer base varnish
  • Preparation method of color-variable PU colorful wood lacquer base varnish
  • Preparation method of color-variable PU colorful wood lacquer base varnish

Examples

Experimental program
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preparation example Construction

[0028] The preparation method of above-mentioned transparent base varnish comprises the following steps:

[0029] A. Select a clean and standard dispersion cylinder;

[0030] 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%;

[0031] C. Start the disperser and disperse at low speed (1200-1500r / min) for 10 minutes;

[0032] 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;

[0033] 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.

[0034] Among them, 1272: High-hydroxyl acrylic resin produced by New Pac...

Embodiment 1

[0057] 1) Preparation of 20% cellulose acetate:

[0058] Methyl ethyl ketone 20Kg

[0059] CAB-551-0.2 20Kg

[0060] Butyl acetate 60Kg

[0061] Disperse and stir until completely dissolved, until the fineness is ≤15um;

[0062] 2) Proportion of component A transparent base varnish:

[0063]

[0064] Uniform dispersion to fineness≤25um, viscosity 2500~3500mpa.s / 25℃

[0065] 3) Proportion of component A magic paint:

[0066] Base paint 80Kg

[0067] Color-changing pearlescent pigment 20Kg

[0068] 4) The ratio of component B:

[0069]

[0070] After dehydration, start stirring and dispersing for 30 minutes, keep warm at 70°C, cool down and discharge and seal.

[0071] HI-100: 100% solid HDI trimer curing agent produced by BASF (China) Co., Ltd.;

[0072] 3390: 90% solid HDI trimer curing agent produced by Bayer;

[0073] 5) The ratio of component C

[0074]

[0075] Stir well and set aside

[0076] The preparation of described component A transparent base v...

Embodiment 2

[0083] 1) Preparation of 20% cellulose acetate:

[0084] Methyl ethyl ketone 20Kg

[0085] CAB-551-0.2 20Kg

[0086] Butyl acetate 60Kg

[0087] Disperse and stir until completely dissolved, until the fineness is ≤15um;

[0088] 2) Proportion of component A transparent base varnish:

[0089]

[0090] Uniform dispersion to fineness≤25um, viscosity 2500~3500mpa.s / 25℃

[0091] 3) Proportion of component A magic paint:

[0092] Base paint 92Kg

[0093] Color-changing pearlescent pigment 8Kg

[0094] 4) The ratio of component B:

[0095]

[0096] After dehydration, start stirring and dispersing for 30 minutes, keep warm at 70°C, cool down and discharge and seal.

[0097] HI-100: 100% solid HDI trimer curing agent produced by BASF (China) Co., Ltd.;

[0098] 3390: 90% solid HDI trimer curing agent produced by Bayer;

[0099] 5) The ratio of component C

[0100]

[0101] Stir well and set aside

[0102] The preparation of described component A transparent base va...

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Abstract

The invention discloses a preparation method of color-variable PU colorful wood lacquer base varnish. The method includes the following steps of A, selecting a clean up-to-standard dispersion tank; B, sequentially putting in 41.3-60% of acrylic resin 1272, 25-40% of saturated polyester resin DP315, 1% of polyethylene wax slurry, 0.5-1% of dispersing agent BYK-110, 0.5-1% of flatting agent EFKA-3777, 0.1-0.2% of flatting agent EFKA-3600, 0.2-0.5% of defoaming agent BYK-066N and 1-2% of methyl isobutyl ketone MIBK; C, starting a dispersion machine for dispersion at low speed for 10 min; D, adding 5% of 15% polyamide wax slurry and 5-8% of 20% cellulose acetate, discharging not less than 2 KG of paint at a receiving port, and pouring the paint back into the dispersion tank to be evenly dispersed and then inspected; E, adding 0.5-1% of n-butyl acetate, and adjusting viscosity to 2500-3500 mpa.s / 25 DEG C to prepare a first component, namely transparent base varnish. According to the transparent base varnish prepared through the method, the crosslinking degree design can be high, the hardness can be high, the flexibility can not become poor when the hardness is increased, and the luster is high.

Description

technical field [0001] The invention relates to a preparation method of a color-changing PU magic color wood paint base varnish. 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 method for preparing a color-changing PU magic color wood paint base varnish. The prepared ba...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D167/00C09D175/14C09D175/06C09D7/12C09D5/29
CPCC09D133/00C08L2201/10C08L2205/035C09D5/29C09D175/14C08L67/00C08L23/06C08L77/00C08L1/12C08L75/06
Inventor 方学平杨长春
Owner 广东花王涂料有限公司
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