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Water-based coating for surface of mechanical product

A water-based coating and mechanical product technology, applied in coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve problems such as the inability to meet the requirements of environmental protection and comprehensive performance, and achieve excellent artificial aging resistance, excellent adhesion, High hardness effect

Active Publication Date: 2013-12-25
JIANGSU HUAXIA PAINT MAKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the coatings used on construction machinery, agricultural machinery products, machine tools, etc. on the market are oil-based combination on the bottom surface, or water-based primers are used to match oil-based topcoats, but this combination method cannot meet the requirements of environmental protection and comprehensive performance.

Method used

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  • Water-based coating for surface of mechanical product
  • Water-based coating for surface of mechanical product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The preparation method of embodiment 1 water-based primer, comprises the steps:

[0049] Step (1): Dilute the uniformly mixed 10% epoxy ester emulsion A and 10% epoxy ester emulsion B with 10% deionized water I, and then add 0.5% neutralizer AMP-95 to adjust the pH value to 8.5-9.5, then add 0.3% drier HD-CG01, then add 0.2% dispersant 706W and 0.2% foam suppressor 643 diluted with 5% deionized water II while stirring, and stir The speed is 300 rpm, continue to stir to make it evenly mixed, and obtain the pre-emulsion;

[0050] Step (2): Add 10% of 190D iron oxide red, 10% of 500 mesh barium sulfate, 10% of 500 mesh heavy calcium and 0.6% of organic anti-settling agent to the pre-emulsion obtained in step (1). Bentonite SMP-HV was dispersed at 750 rpm for 10 minutes, and then ground with zirconium beads as the grinding medium until the fineness reached 40 microns to obtain the grinding slurry;

[0051] Step (3): Add 10% epoxy ester emulsion A to the grinding slurry ob...

Embodiment 2

[0055]The preparation method of embodiment 2 water-based primers, comprises the steps:

[0056] Step (1): Dilute the uniformly mixed 12% epoxy ester emulsion A and 10% epoxy ester emulsion B with 8% deionized water I, and then add 0.6% neutralizer AMP-95 to adjust the pH value to 8.5-9.5, then add 0.4% drier HD-CG01, then add 0.2% dispersant 706W and 0.2% foam suppressor 643 diluted with 4% deionized water II while stirring, and stir The speed is 300 rpm, continue to stir to make it evenly mixed, and obtain the pre-emulsion;

[0057] Step (2): Add 12% of 190D iron oxide red, 10% of 500 mesh barium sulfate, 7% of 500 mesh heavy calcium and 0.5% of organic anti-settling agent to the pre-emulsion obtained in step (1). Bentonite SMP-HV was dispersed at 850 rpm for 20 minutes, and then ground with zirconium beads as the grinding medium until the fineness reached 40 microns to obtain the grinding slurry;

[0058] Step (3): Add 10% epoxy ester emulsion A to the grinding slurry obta...

Embodiment 3

[0062] The preparation method of embodiment 3 water-based primers, comprises the steps:

[0063] Step (1): Dilute the uniformly mixed 10% epoxy ester emulsion A and 15% epoxy ester emulsion B with 5% deionized water I, and then add 0.65% neutralizer AMP-95 to adjust the pH value to 8.5-9.5, then add 0.4% drier HD-CG01, then add 0.2% dispersant 706W and 0.25% foam suppressor 643 diluted with 4% deionized water II while stirring, and stir The speed is 300 rpm, continue to stir to make it evenly mixed, and obtain the pre-emulsion;

[0064] Step (2): Add 13% of 190D iron oxide red, 7% of 500 mesh barium sulfate, 10% of 500 mesh heavy calcium and 0.45% of anti-sedimentation agent to the pre-emulsion obtained in step (1) while stirring Bentonite SMP-HV was dispersed at 800 rpm for 15 minutes, and then ground with zirconium beads as the grinding medium until the fineness reached 40 microns to obtain the grinding slurry;

[0065] Step (3): Add 10% epoxy ester emulsion A to the grind...

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Abstract

The invention relates to a water-based coating for the surface of a mechanical product and belongs to the technical field of painting. The coating comprises a water-based primer coat layer and a water-based top coat layer, the water-based primer coat used in the water-based primer coat layer comprises the following components in percentage by mass: 30-40% of epoxy-ester emulsion, 10-15% of pigment, 10-15% of environment-protecting anti-rust pigment, 15-20% of filler, 3-4% of assistant and 13-22% of de-ionized water; the water-based top coat used in the water-based top coat layer comprises the following components in percentage by mass: 55-65% of hydroxyl acrylic emulsion, 4-25% of pigment, 5-15% of filler, 2.5-3.5% of assistant and 10.5-12.6% of de-ionized water. The coating product is water-based and environment-friendly, has very high drying speed and high gloss of the top coat, also has excellent chemical property and excellent weather resistance, and the corrosion resistance of the coating in combination with the primer coat and the top coat is more than 2000h.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a water-based coating used on the surface of mechanical products. Background technique [0002] With the increasingly fierce market competition, while people pay more and more attention to the quality of products, they also pay more attention to the impact on the environment and the requirements for environmental protection are getting higher and higher. At present, the coatings used in construction machinery, agricultural machinery products, machine tools, etc. on the market are oil-based combination on the bottom surface, or water-based primer with oily topcoat, but this combination method cannot meet the requirements of environmental protection and comprehensive performance. [0003] The invention is specially invented for the water-based, environment-friendly and high-end product quality of such coating products. It has very fast drying speed, high gloss of topcoat, excellen...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D133/00C09D7/12C09D5/08
Inventor 江拥
Owner JIANGSU HUAXIA PAINT MAKING
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