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Bi-component polyurethane coating

A two-component polyurethane and coating technology, applied in the field of coatings, can solve problems such as environmental and human damage, and achieve the effects of reducing environmental damage, reducing irritating odor, and increasing cross-linking density

Inactive Publication Date: 2015-10-21
四川珍福堂商贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention provides a kind of two-component polyurethane coating, to improve the problem that existing coating all causes certain harm to environment and human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] This embodiment one provides a kind of two-component polyurethane coating, is made up of A component and B component, and A component comprises the following components by weight parts: 5 parts of acrylic resin dispersion, ethylene glycol ethyl ether acetic acid 4 parts of ester, 5 parts of resin containing active hydrogen, 12 parts of filler, 8 parts of chitin derivative formaldehyde removal additive, 1 part of anti-sedimentation agent, 1 part of defoamer, 2 parts of drier; B component by weight In terms of parts, it includes the following components: 7 parts of isocyanate and 10 parts of trimer of toluene diisocyanate.

[0018] In this embodiment, the active hydrogen-containing resin is amino alkyd polyol. Of course, this choice is not a limitation, and other active hydrogen-containing resins can also be selected, as long as the selection of the active hydrogen-containing resin meets the requirements of "for not Saturated polyester polyol, amino alkyd polyol, polycarb...

Embodiment 2

[0026] This embodiment two provides a kind of two-component polyurethane coating, is made up of A component and B component, and A component comprises the following components by weight parts: 10 parts of acrylic resin dispersion, ethylene glycol ethyl ether acetic acid 6 parts of ester, 9 parts of resin containing active hydrogen, 15 parts of filler, 10 parts of chitin derivative formaldehyde removal additive, 4 parts of anti-sedimentation agent, 3 parts of defoamer, 3 parts of drier; B component by weight In terms of parts, it includes the following components: 13 parts of isocyanate and 12 parts of toluene diisocyanate trimer.

[0027] In this embodiment, the resin containing active hydrogen is epoxy polyol; the filler is a mixture of talcum powder and calcium carbonate, and the mass ratio of the two is 1:1; the anti-sedimentation agent is organic bentonite; the defoamer is dimethyl Silicone oil; the drier is dibutyltin dilaurate.

Embodiment 3

[0029] This embodiment three provides a two-component polyurethane coating, which is composed of A component and B component, and A component is calculated by weight, including the following components: 7 parts of acrylic resin dispersion, ethylene glycol ethyl ether acetic acid 5 parts of ester, 7 parts of resin containing active hydrogen, 13.5 parts of filler, 8.5 parts of chitin derivative formaldehyde removal additive, 2 parts of anti-settling agent, 1.5 parts of defoamer, 2 parts of drier; B component by weight In terms of parts, it includes the following components: 10 parts of isocyanate, 11 parts of toluene diisocyanate trimer.

[0030] In this embodiment, the active hydrogen-containing resin is a saturated fatty acid alkyd resin; the filler is talc powder; the anti-settling agent is organic bentonite; the defoamer is simethicone; and the drier is dibutyltin dilaurate.

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PUM

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Abstract

The invention provides a bi-component polyurethane coating, and relates to the field of coating. The bi-component polyurethane coating is composed of a component A and a component B. The component A comprises, by weight, 5-10 parts of acrylic resin dispersoid, 4-6 parts of glycol ether acetate, 5-9 parts of resin containing active hydrogen, 12-15 parts of padding, 8-10 parts of chitin derivative formaldehyde removal additives, 1-4 parts of anti-settling agents, 1-3 parts of defoaming agents and 2-3 parts of dryer. The component comprises, by weight, 7-13 parts of isocyanate and 10-12 parts of toluene diisocyanate capable. The bi-component polyurethane coating can reduce harm to the environment and the human body effectively and is suitable for being widely popularized.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a two-component polyurethane coating. Background technique [0002] With the rapid development of my country's economic construction, the quantity, variety and quality of coating production have changed greatly, but due to the needs of functions and the actual needs of the objective market, solvent-based coatings still occupy a large market share. However, traditional solvent-based coatings contain a large amount of organic solvents, which have caused some damage to the environment. In addition, after the paint is painted, the paint will release some harmful substances, such as formaldehyde, which will cause great harm to the human body. Contents of the invention [0003] In view of this, the present invention provides a two-component polyurethane coating to improve the problem that existing coatings cause certain harm to the environment and human body. [0004] To achieve the above o...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/12C08G18/62
Inventor 周宏林
Owner 四川珍福堂商贸有限公司
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