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Preparation technology for one-component thermoplastic acrylic acid middle coating

A thermoplastic acrylic acid and preparation process technology, applied in the coating and other directions, can solve the problems of insufficient coating hardness, poor wear resistance and scratch resistance, etc., and achieve the effect of good wear resistance and scratch resistance and high hardness

Inactive Publication Date: 2017-01-04
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

[0003] However, the currently used mid-coating primer, considering its application on outdoor woodware, has insufficient coating hardness and poor wear and scratch resistance. Therefore, it is necessary to improve and optimize

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] According to the mass ratio, the ingredients are as follows:

[0066] Thermoplastic Acrylic 72%

[0067] 15% polyamide wax paste 3%

[0068] Dispers610s dispersant 0.2%

[0069] EFKA-360 leveling agent 0.2%

[0070] EFKA-3033 leveling agent 0.3%

[0071] BYK-066N defoamer 0.3%

[0072] Trimethylbenzene 5%

[0073] Zinc Stearate 3.5%

[0074] n-Butyl acetate 0.5%

[0075] MIBK 3%

[0076] 1130 Light Stabilizer Light Stabilizer 1%

[0077] 292 light stabilizer 1%

[0078] n-Butyl acetate 10%.

[0079] In step C, the rotating speed is 600r / min; in step D, the rotating speed is 800r / min; in step E, the rotating speed is 1500r / min; in step F, the rotating speed is 1200r / min; 25°C.

Embodiment 2

[0081] According to the mass ratio, the ingredients are as follows:

[0082] Thermoplastic acrylic resin 81.75%

[0083] 15% polyamide wax paste 2%

[0084] Dispers610s dispersant 0.5%

[0085] EFKA-360 leveling agent 0.05%

[0086] EFKA-3033 leveling agent 0.1%

[0087] BYK-066N defoamer 0.1%

[0088] Trimethylbenzene 2%

[0089] Zinc Stearate 2%

[0090] n-Butyl acetate 0.5%

[0091] MIBK 1%

[0092] 1130 Light Stabilizer Light Stabilizer 0.5%

[0093] 292 light stabilizer 0.5%

[0094] n-Butyl acetate 9%.

[0095] In step C, the rotating speed is 800r / min, in step D, the rotating speed is 600r / min, in step E, the rotating speed is 1200r / min, in step F, the rotating speed is 800r / min, and the coating-4 cup viscosity: 20s / 25°C.

Embodiment 3

[0097] According to the mass ratio, the ingredients are as follows:

[0098] Thermoplastic Acrylic 77.5%

[0099] 15% polyamide wax paste 2.5%

[0100] Dispers610s dispersant 0.4%

[0101] EFKA-360 leveling agent 0.1%

[0102] EFKA-3033 leveling agent 0.2%

[0103] BYK-066N defoamer 0.2%

[0104] Trimethylbenzene 4%

[0105] Zinc Stearate 3%

[0106] n-Butyl acetate 0.5%

[0107] MIBK 2%

[0108] 1130 Light Stabilizer Light Stabilizer 0.8%

[0109] 292 light stabilizer 0.8%

[0110] n-Butyl acetate 8%.

[0111] In step C, the rotating speed is 700r / min; in step D, the rotating speed is 700r / min; in step E, the rotating speed is 1400r / min; in step F, the rotating speed is 1000r / min; 25°C.

[0112] The intermediate coating primer prepared by the above process is uniformly dispersed until the fineness is ≤35um, and the coating-4 cup viscosity: 20s~30s / 25℃. It has the characteristics of high hardness, good wear resistance and scratch resistance, and can better meet the...

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PUM

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Abstract

The invention discloses a preparation technology for a one-component thermoplastic acrylic acid middle coating. The preparation technology comprises the following steps: A, a dispersing jar is selected; B, 72%-81.75% of thermoplastic acrylic acid resin, 2%-3% of 15% polyamide wax liquor, 0.5%-0.2% of Dispers610s, 0.05%-0.2% of EFKA-3600 leveling agent, 0.1%-0.3% of EFKA-3033 leveling agent, 0.1%-0.3% of BYK-066N defoamer and 3%-5% of trimethylbenzene are fed sequentially; C, a dispersion machine is started and performs dispersion at 600-800 r / min for 5 min; D, 2%-3.5% of zinc stearate is added at the rotating speed of 600-800 r / min, the jar edge is cleaned with 0.5% of n-butyl acetate, and the jar edge is shoveled; E, uniform dispersion is performed at 1,200-1,500 r / min until the fineness is lower than or equal to 35 mu m, shutdown is performed for submission, and after the fineness is qualified, 1%-3% of MIBK, 0.5%-1% of 1130 light stabilizer, 0.5%-1% of 292 light stabilizer and 7.5%-10% of n-butyl acetate are added; F, the dispersion machine is started and performs dispersion at 800-1,200 r / min for 10 min, at least 2 KG of paint is drained at a port and poured back into the dispersing jar, submission is performed after uniform dispersion, 0.5%-1% of n-butyl acetate is added, the viscosity of a TU-4 cup is regulated to be 20 s-30 s / 25 DEG C, and the middle coating is prepared.

Description

technical field [0001] The invention relates to a preparation process of a one-component thermoplastic acrylic intermediate coating primer. Background technique [0002] Wood varnishes for outdoor use are composed of three layers, namely sealing primer, intermediate primer and topcoat. The sealing primer has the characteristics of strong permeability and excellent sealing performance. It is used to strengthen the adhesion of the topcoat, making the topcoat more plump, delicate and smooth, and also has anti-corrosion effect. The topcoat is the final coating of painting. The paint effect after decoration or painting is determined by the surface paint rendering. [0003] However, the currently used mid-coating primer is considered to be applied to outdoor woodware, and its coating hardness is not high enough, and its wear resistance and scratch resistance are relatively poor. Therefore, it is necessary to improve and optimize. Contents of the invention [0004] In order to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/12
CPCC09D133/00C08L77/00C08K5/098C08K5/101
Inventor 方学平杨长春严修才
Owner 广东花王涂料有限公司
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