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Heat discoloration varnish and preparation method thereof

A temperature-sensitive color-changing and varnish technology, which is applied in the field of temperature-sensitive color-changing varnish and its preparation, can solve the problems of not being suitable for occasions with high weather resistance requirements, and the color-changing lag of temperature-sensitive color-changing coatings, so as to improve storage stability and adhesion , high color retention effect

Inactive Publication Date: 2019-04-16
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at problems such as the hysteresis of the existing temperature-sensitive color-changing paint, which is not suitable for occasions with high weather resistance requirements, the present invention provides a temperature-sensitive color-changing varnish and a preparation method thereof

Method used

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  • Heat discoloration varnish and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0036] The embodiment of the present invention provides a temperature-sensitive color-changing varnish, including 35 parts of color paste, 45 parts of emulsion, 10 parts of water and 35 parts of curing agent;

[0037]Wherein, the color paste includes the following raw material components in parts by weight: 35 parts of hydroxyl polyacrylic acid aqueous dispersion, 65 parts of reversible thermochromic pigment, 0.5 part of defoamer and 8 parts of deionized water;

[0038] The emulsion includes the following raw material components in parts by weight: 25 parts of hydroxyl polyacrylic acid aqueous dispersion, 38 parts of hydroxyl polyacrylate resin, 0.8 parts of dimethylethanolamine, 8 parts of ethylene glycol butyl ether, and 3 parts of dipropylene glycol methyl ether , 5 parts of UV stabilizer, 4 parts of UV absorber, 2 parts of leveling agent and 3 parts of deionized water;

[0039] The curing agent includes the following raw material components in parts by weight: 65 parts of ...

Embodiment 2

[0047] The embodiment of the present invention provides a temperature-sensitive color-changing varnish, including 40 parts of color paste, 55 parts of emulsion, 5 parts of water and 30 parts of curing agent;

[0048] Wherein, the color paste includes the following raw material components in parts by weight: 25 parts of hydroxyl polyacrylic acid aqueous dispersion, 70 parts of reversible thermochromic pigment, 0.8 parts of defoamer and 5 parts of deionized water;

[0049] The emulsion includes the following raw material components in parts by weight: 30 parts of hydroxypolyacrylic acid aqueous dispersion, 35 parts of hydroxypolyacrylate resin, 0.5 part of dimethylethanolamine, 6 parts of ethylene glycol butyl ether, and 5 parts of dipropylene glycol methyl ether , 4 parts of UV stabilizer, 5 parts of UV absorber, 3 parts of leveling agent and 4 parts of deionized water;

[0050] The curing agent includes the following raw material components in parts by weight: 70 parts of isoc...

Embodiment 3

[0058] The embodiment of the present invention provides a temperature-sensitive color-changing varnish, including 45 parts of color paste, 50 parts of emulsion, 15 parts of water and 28 parts of curing agent;

[0059] Wherein, the color paste includes the following raw material components in parts by weight: 15 parts of hydroxyl polyacrylic acid aqueous dispersion, 68 parts of reversible thermochromic pigment, 1 part of defoamer and 10 parts of deionized water;

[0060] The emulsion includes the following raw material components in parts by weight: 38 parts of hydroxyl polyacrylic acid aqueous dispersion, 25 parts of hydroxyl polyacrylate resin, 1 part of dimethylethanolamine, 10 parts of ethylene glycol butyl ether, and 7 parts of dipropylene glycol methyl ether , 3 parts of UV stabilizer, 3 parts of UV absorber, 4 parts of leveling agent and 5 parts of deionized water;

[0061] The curing agent includes the following raw material components in parts by weight: 75 parts of is...

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Abstract

The invention discloses heat discoloration varnish and a preparation method thereof. The varnish is prepared from 35-45 parts of color paste, 45-55 parts of emulsion, 5-15 parts of water and 28-35 parts of a curing agent; the color paste comprises 15-35 parts of hydroxy polyacrylic acid aqueous dispersions, 65-70 parts of reversible heat discoloration pigment, 0.5-1 part of a defoamer and 5-10 parts of deionized water; the emulsion comprises 25-38 parts of hydroxy polyacrylic acid aqueous dispersions, 25-38 parts of hydroxy polyacrylate resin, 0.5-1 part of dimethylethanolamine, 6-10 parts ofbutyl cellosolve, 3-7 parts of dipropylene glycol methyl ether, 3-5 parts of an ultraviolet stabilizer, 3-5 parts of an ultraviolent absorber, 2-4 parts of a flatting agent and 3-5 parts of deionizedwater; the curing agent comprises 65-75 parts of an isocyanate curing agent and 25-35 parts of a cosolvent. The provided coating has higher weather ability and higher corrosion resistance performance,and is sensitive in color changing and long in color changing service life.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a temperature-sensitive color-changing varnish and a preparation method thereof. Background technique [0002] With the wide application and in-depth research of coatings, the performance of powder coatings has been improving and improving. Not only are their decorative effects increasingly demanding, but their functional requirements are also increasing. Thermochromic paint, as a special effect material, can change color with temperature and play a role of reminder and warning. It is widely used in anti-counterfeiting, cosmetics, toys and other fields. For example, equipment temperature monitoring. When the temperature is higher than a certain limit temperature, which is not conducive to safe operation or affects product quality, it can remind you to turn on condensate water to cool down, or adjust the heating temperature to avoid danger. For automotive interiors, spraying tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/26
CPCC09D175/04C09D5/26
Inventor 岳圣斌李涛秦少杰孔令保
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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