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Water-based PU elastic coating and preparation method thereof

An elastic coating and water-based technology, applied in polyurea/polyurethane coatings, coatings, latex paints, etc., can solve the problems of large pollutant emissions, achieve the effects of reduced pollutant emissions, good elasticity, and excellent physical and chemical properties

Active Publication Date: 2017-12-22
东周化学工业(昆山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing production process, solvent-based PU elastic coatings are mostly used for cosmetic ABS substrates. The solvent-based PU elastic coatings have a VOC (volatile organic compound) content of 500-600g / L, a high content of organic solvents, and pollutant emissions. Big

Method used

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  • Water-based PU elastic coating and preparation method thereof

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Effect test

Embodiment

[0024] Embodiment: the present invention provides a kind of water-based PU elastic paint, and its component is according to following different embodiments, corresponding proportioning by weight content, see Table 1 for details:

[0025] Table 1: Component A

[0026]

Embodiment one

Embodiment two

Embodiment Three

Embodiment four

Waterborne Polyester Resin

40

45

50

55

Water-dispersed polycarbonate diol

15

15

12

10

pure water

20

18

18

10

Dispersant

1

1.5

1

2

matting powder

6

7

5

5

Anti-settling agent

2

1.5

1

2

organic solvent

9

7

6

10

D

1

0.5

1

0.5

leveling agent

1

1

0.5

0.5

Special Polyurethane Particles

4

3

5

4

Ammonia neutralizer

1

0.5

0.5

1

[0027] The water-based polyester resin adopts Nanchang Yushi Technology PS2100B, and the coating fil...

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Abstract

The invention discloses water-based PU elastic coating and a preparation method thereof. The water-based PU elastic coating comprises the following component substances: water-based polyester resin, water dispersible polycarbonate diol, a dispersing agent, extinction powder, a wetting agent, a leveling agent, an organic cosolvent, an anti-settling agent, polyurethane particles, an ammonium neutralizing agent and water dispersible isocyanate. The water-based PU elastic coating disclosed by the invention overcomes the defects of the prior art, VOC content of the water-based PU elastic coating is lower than 150g / L and is 60-70% lower than that of the traditional solvent PU elastic coating, pollutant discharge of an enterprise is reduced, after the water-based PU elastic coating is dried, surface of a film is smooth in handfeel, elasticity is better, the film has excellent water resistance, alcohol resistance and physical and chemical properties, and related detection standards of cosmetic coating are met.

Description

technical field [0001] The invention relates to a water-based PU elastic coating and a preparation method thereof, belonging to the technical field of cosmetics. Background technique [0002] In the existing production process, solvent-based PU elastic coatings are mostly used for cosmetic ABS substrates. The solvent-based PU elastic coatings have a VOC (volatile organic compound) content of 500-600g / L, a high content of organic solvents, and pollutant emissions. Big. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings and deficiencies in the prior art. In order to achieve the above-mentioned purpose, the first technical solution adopted by the present invention is: a water-based PU elastic coating, including A component and B component. The A component includes the following components by weight percentage: 40-55% of water-based polyester resin, 10-15% of water-dispersible polycarbonate diol, 1-2% of dispersant, 5-7% of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D5/02C09D7/12C08G18/44C08G18/42
CPCC08G18/42C08G18/44C08L2205/02C09D5/024C09D175/06C08L75/04
Inventor 田小丰
Owner 东周化学工业(昆山)有限公司
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