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Water-based peelable single-color-change irreversible temperature indicating coating and preparation method thereof

A temperature-indicating paint and color-changing pigment technology, applied in the field of color-changing paint, can solve the problems of low temperature measurement accuracy, easy residual environment, and pollution of temperature-indicating paint, and achieve the effects of easy peeling and removal, fast color changing speed, and high temperature measurement accuracy

Inactive Publication Date: 2021-10-01
中昊北方涂料工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can solve the problem of low temperature measurement accuracy of oil-based single-color irreversible temperature-indicating paint, easy residue after temperature measurement, and environmental pollution caused by it. It can also solve the problem of complicated preparation process of temperature-indicating patches

Method used

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  • Water-based peelable single-color-change irreversible temperature indicating coating and preparation method thereof
  • Water-based peelable single-color-change irreversible temperature indicating coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Accurately weigh 54.0g of deionized water and 1.0g of byk190, use high-speed stirring, and stir until byk190 is completely dissolved. Control the stirring speed at 200-300r / min, add 5.0g talcum powder and 10.0g lead stearate in sequence, and continue stirring until the system is uniform without agglomeration, and the slurry is prepared. The prepared slurry was sent to a sand mill for grinding and dispersion, and the measured fineness was 30 μm. Then, add 30.0 g of water-based SBS emulsion, use high-speed stirring, control the stirring speed at 200-300 r / min, and stir for 30 minutes to disperse the components evenly. Finally, filter the dispersed paint solution with a 120-mesh sieve and fill it into a tank to obtain a water-based peelable temperature-indicating paint. It is recorded as coating 1, and the technical specifications are shown in Table 1.

Embodiment 2

[0024] Accurately weigh 42.0g of deionized water, 4.0g of byk192, and 1.0g of FA179 using high-speed stirring until byk192 and FA179 are completely dissolved. Control the stirring speed at 200-300r / min, add 6.0g of silicon dioxide and 12.0g of cadmium stearate in sequence, and continue to stir until the system is uniform without agglomeration, and the slurry is prepared. The prepared slurry was sent to a sand mill for grinding and dispersion, and the measured fineness was 30 μm. Then, add 35.0 g of water-based peelable acrylic emulsion, use high-speed stirring, control the stirring speed at 200-300 r / min, and stir for 30 minutes to disperse the components evenly. Finally, filter the dispersed paint solution with a 120-mesh sieve and fill it into a tank to obtain a water-based peelable temperature-indicating paint. It is recorded as coating 2, and the technical specifications are shown in Table 1.

Embodiment 3

[0026] Accurately weigh 36.0g deionized water, 1.0gbyk191, 1.0gFA179 using high-speed stirring, stir until byk191 and FA179 are completely dissolved. Control the stirring speed at 200-300r / min, add 8.0g of quartz powder and 14.0g of zinc stearate in sequence, and continue to stir until the system is uniform without agglomeration, that is, the slurry is prepared. The prepared slurry was sent to a sand mill for grinding and dispersion, and the measured fineness was 30 μm. Then, add 40.0 g of water-based peelable PU emulsion, use high-speed stirring, control the stirring speed at 200-300 r / min, and stir for 50 minutes to disperse the components evenly. Finally, filter the dispersed paint solution with a 120-mesh sieve and fill it into a tank to obtain a water-based peelable temperature-indicating paint. It is recorded as coating 3, and the technical specifications are shown in Table 1.

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Abstract

The invention relates to a water-based strippable single-color-change irreversible temperature indicating coating as well as a preparation method and a use method thereof. The coating comprises resin, color-changing pigment, filler, auxiliaries and a solvent, the resin is any one of commercially available water-based SBS emulsion, water-based peelable acrylic emulsion and water-based peelable PU emulsion, the solid content of the resin is 50%, and the color-changing pigment is any one of zinc stearate, lead stearate, calcium stearate and cadmium stearate. According to the water-based strippable single-color-change irreversible temperature indicating coating prepared by the invention, a paint film is white before color change; and after color change, the paint film becomes transparent and has an obvious color change effect. The color change speed is high, and color change is immediately performed when specified color change temperature is reached; and the temperature measurement precision is high, and the temperature measurement error is + / -5 DEG C. After temperature measurement is finished, stripping and removing are easy, and follow-up surface treatment of the temperature measurement component is not affected.

Description

technical field [0001] The invention belongs to the technical field of color-changing coatings, and in particular relates to a water-based peelable single-color-changing irreversible temperature-indicating coating and a preparation and use method thereof. Background technique [0002] Temperature-indicating paint is a kind of paint that indicates the temperature and temperature distribution of the surface of the tested part by the color change of the coating. According to the reversibility of its color change, it is divided into: reversible temperature display paint and irreversible temperature display paint; according to the number of its color change with temperature, it is further divided into: single color change temperature display paint and multi-color temperature display paint. The color change of temperature-indicating paint is usually realized by using the principles of thermal decomposition of pigments, solid-state reaction and phase change. The formed products ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/26C09D153/02C09D133/00C09D175/04C09D7/41C09D7/61
CPCC09D5/26C09D153/02C09D133/00C09D175/04C09D7/41C09D7/61C08K2003/2227C08K5/098C08K3/36C08K3/34C08K3/346C08K3/22
Inventor 田永丰杨康孙哲李建飞丁渊文徐润斌
Owner 中昊北方涂料工业研究设计院有限公司
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