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Thermochromic coating for metal, glass and ceramic and preparation method thereof

A temperature-sensitive color-changing and temperature-changing pigment technology, which is applied in the field of temperature-sensitive color-changing coatings and its preparation, can solve the problems of not being able to display the surface temperature of the product, the paint on the product surface falling off, and the product being exposed to the environment, so as to achieve good color retention effect, Good weather resistance, excellent fullness effect

Active Publication Date: 2013-11-20
深圳市鑫太庆科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, boilers, chemical reaction towers, exhaust pipes, glass doors and windows, ceramic pipes and other products that use metal, glass and ceramics as substrates are protected by ordinary paint, which cannot show changes in the temperature of the product surface in the environment. , the higher temperature may cause the paint on the surface of the product to fall off, expose the product to the environment, cause serious corrosion, and shorten the life of the product
On the other hand, in production, due to the high temperature of the product, it is difficult for workers to master the operation. Therefore, there is an urgent need on the market for a coating with good heat resistance, strong adhesion, and low cost for surface decoration and paint film that will automatically change color with temperature.

Method used

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  • Thermochromic coating for metal, glass and ceramic and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0073] A temperature-sensitive color-changing coating for metal, glass and ceramics, comprising the following raw materials in parts by weight: 16 parts of polyurethane resin, 6 parts of thermosetting acrylic resin, 3 parts of permethyletherified amino resin, 16 parts of temperature-changing pigment, 0.5 parts of leveling agent, 1 part of defoamer, 0.5 parts of dispersant and 23 parts of organic solvent.

[0074] Wherein, the polyurethane resin has a density of 1.33g / cm 3 , a polyurethane resin with a viscosity of 1000mPa.s; the thermosetting acrylic resin has a density of 0.97g / cm 3 , a thermosetting acrylic resin with a viscosity of 45mPa.s; the full methyl etherified amino resin has a density of 1.14g / cm 3 , a full methyl etherified amino resin with a viscosity of 4500mPa.s.

[0075] Wherein, the temperature-changing pigment is 3,6-dimethoxyfluorane; the leveling agent is a fluorine-modified acrylic leveling agent; the defoamer is a silicone defoamer; the The dispersant ...

Embodiment 2

[0081] A temperature-sensitive color-changing paint for metal, glass and ceramics, comprising the following raw materials in parts by weight: 20 parts of polyurethane resin, 8 parts of thermosetting acrylic resin, 4 parts of permethyl etherified amino resin, 20 parts of temperature-changing pigment, 0.75 parts of leveling agent, 1.5 parts of defoamer, 0.75 parts of dispersant and 28.5 parts of organic solvent.

[0082] Wherein, the polyurethane resin has a density of 1.34g / cm 3 , a polyurethane resin with a viscosity of 1100mPa.s; the thermosetting acrylic resin has a density of 0.98g / cm 3 , a thermosetting acrylic resin with a viscosity of 48mPa.s; the full methyl etherified amino resin has a density of 1.11g / cm 3 , a full methyl etherified amino resin with a viscosity of 4800mPa.s.

[0083] Wherein, the temperature-changing pigment is 3-cyclohexylamino-6-chlorofluorane; the leveling agent is a fluorine-modified acrylic leveling agent; the defoamer is a silicone defoamer; ...

Embodiment 3

[0089] A temperature-sensitive color-changing coating for metal, glass and ceramics, comprising the following raw materials in parts by weight: 24 parts of polyurethane resin, 10 parts of thermosetting acrylic resin, 5 parts of permethyletherified amino resin, 25 parts of temperature-changing pigment, 1 part of leveling agent, 2 parts of defoamer, 1 part of dispersant and 34 parts of organic solvent.

[0090] Wherein, the polyurethane resin has a density of 1.36g / cm 3 , a polyurethane resin with a viscosity of 1200mPa.s; the thermosetting acrylic resin has a density of 1.00g / cm 3 , a thermosetting acrylic resin with a viscosity of 50mPa.s; the full methyl etherified amino resin has a density of 1.16g / cm 3 , a full methyl etherified amino resin with a viscosity of 5200mPa.s.

[0091] Wherein, the temperature-changing pigment is rhodamine B lactam; the leveling agent is a fluorine-modified acrylic leveling agent; the defoamer is a silicone defoamer; the dispersant is an alkyl ...

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Abstract

The invention relates to the technical field of coatings, and in particular to a thermochromic coating for metal, glass and ceramic and a preparation method thereof. The thermochromic coating comprises the following raw materials in parts by weight: 16-32 parts of polyurethane resin, 6-14 parts of thermosetting acrylic resin, 3-7 parts of fully-methylated amino resin, 16-34 parts of temperature-changing pigments, 0.5-1.5 parts of a levelling agent, 1-3 parts of a defoaming agent, 0.5-1.5 parts of a dispersing agent and 23-45 parts of an organic solvent. A paint film formed by the thermochromic coating disclosed by the invention is level and smooth, bright in colour, good in ductility and flexibility, excellent in adhesive force for various primers and the matrixes of metal, glass, ceramic and the like, excellent in interlayer adhesive force, capable of being re-coated, excellent in flame-retardant and high-temperature-resistant performances, capable of still keeping a high-quality and complete paint film coating in the case that a surface temperature is 200 DEG C, and excellent in acid-base resistance, boiling resistance, solution resistance, weather resistance and corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a thermochromic coating for metal, glass and ceramics and a preparation method thereof. Background technique [0002] Thermochromic materials are functional materials whose color changes significantly with temperature within a certain temperature range. The comprehensive research and application of thermochromic materials has a history of 60 to 70 years, and it has a history of more than 30 years in our country. After decades of research and development, people have developed various materials with thermochromic properties such as inorganic, organic, liquid crystal, polymer and biomacromolecules. [0003] At present, boilers, chemical reaction towers, exhaust pipes, glass doors and windows, ceramic pipes and other products that use metal, glass and ceramics as substrates are protected by ordinary paint, which cannot show changes in the temperature of the product surface in the ...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D133/00C09D161/32C09D7/12C09D5/08C09D5/26
Inventor 邹宝根
Owner 深圳市鑫太庆科技有限公司
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